<Page>

                                                                     EXHIBIT 4.2

                                                                  Execution Copy
================================================================================

                                   CYMER, INC.
           3 1/2% CONVERTIBLE SUBORDINATED NOTES DUE FEBRUARY 15, 2009

                                   ----------
                                    INDENTURE
                          DATED AS OF FEBRUARY 15, 2002

                                   ----------
            STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A.,
                                   AS TRUSTEE

================================================================================

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                                TABLE OF CONTENTS

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ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE.........................................................1

     SECTION 1.1.     DEFINITIONS............................................................................1
     SECTION 1.2.     OTHER DEFINITIONS......................................................................7
     SECTION 1.3.     TRUST INDENTURE ACT PROVISIONS.........................................................8
     SECTION 1.4.     RULES OF CONSTRUCTION..................................................................8

ARTICLE 2 THE SECURITIES.....................................................................................9

     SECTION 2.1.     FORM AND DATING........................................................................9
     SECTION 2.2.     EXECUTION AND AUTHENTICATION..........................................................10
     SECTION 2.3.     REGISTRAR, PAYING AGENT AND CONVERSION AGENT..........................................11
     SECTION 2.4.     PAYING AGENT TO HOLD MONEY IN TRUST...................................................11
     SECTION 2.5.     SECURITYHOLDER LISTS..................................................................12
     SECTION 2.6.     TRANSFER AND EXCHANGE.................................................................12
     SECTION 2.7.     REPLACEMENT SECURITIES................................................................13
     SECTION 2.8.     OUTSTANDING SECURITIES................................................................13
     SECTION 2.9.     TREASURY SECURITIES...................................................................14
     SECTION 2.10.    TEMPORARY SECURITIES..................................................................14
     SECTION 2.11.    CANCELLATION..........................................................................14
     SECTION 2.12.    LEGEND; ADDITIONAL TRANSFER AND EXCHANGE REQUIREMENTS.................................15
     SECTION 2.13.    CUSIP NUMBERS.........................................................................17

ARTICLE 3 REDEMPTION AND PURCHASES..........................................................................17

     SECTION 3.1.     RIGHT TO REDEEM; NOTICE TO TRUSTEE....................................................17
     SECTION 3.2.     SELECTION OF SECURITIES TO BE REDEEMED................................................19
     SECTION 3.3.     NOTICE OF REDEMPTION..................................................................19
     SECTION 3.4.     EFFECT OF NOTICE OF REDEMPTION........................................................20
     SECTION 3.5.     DEPOSIT OF REDEMPTION PRICE...........................................................20
     SECTION 3.6.     SECURITIES REDEEMED IN PART...........................................................20
     SECTION 3.7.     CONVERSION ARRANGEMENT ON CALL FOR REDEMPTION.........................................20
     SECTION 3.8.     PURCHASE OF SECURITIES AT OPTION OF THE HOLDER UPON CHANGE IN CONTROL.................21
     SECTION 3.9.     EFFECT OF CHANGE IN CONTROL PURCHASE NOTICE...........................................25
     SECTION 3.10.    DEPOSIT OF CHANGE IN CONTROL PURCHASE PRICE...........................................26
     SECTION 3.11.    SECURITIES PURCHASED IN PART..........................................................26
     SECTION 3.12.    COMPLIANCE WITH SECURITIES LAWS UPON PURCHASE OF SECURITIES...........................26
     SECTION 3.13.    REPAYMENT TO THE COMPANY..............................................................27

ARTICLE 4 CONVERSION........................................................................................27

     SECTION 4.1.     CONVERSION PRIVILEGE..................................................................27
     SECTION 4.2.     CONVERSION PROCEDURE..................................................................28
     SECTION 4.3.     FRACTIONAL SHARES.....................................................................29
     SECTION 4.4.     TAXES ON CONVERSION...................................................................29
     SECTION 4.5.     COMPANY TO PROVIDE STOCK..............................................................29
     SECTION 4.6.     ADJUSTMENT OF CONVERSION PRICE........................................................30
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                                TABLE OF CONTENTS
                                   (CONTINUED)

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     SECTION 4.7.     NO ADJUSTMENT.........................................................................34
     SECTION 4.8.     ADJUSTMENT FOR TAX PURPOSES...........................................................35
     SECTION 4.9.     NOTICE OF ADJUSTMENT..................................................................35
     SECTION 4.10.    NOTICE OF CERTAIN TRANSACTIONS........................................................35
     SECTION 4.11.    EFFECT OF RECLASSIFICATION, CONSOLIDATION, MERGER OR SALE ON CONVERSION PRIVILEGE.....35
     SECTION 4.12.    TRUSTEE'S DISCLAIMER..................................................................36
     SECTION 4.13.    VOLUNTARY REDUCTION...................................................................36

ARTICLE 5 SUBORDINATION.....................................................................................37

     SECTION 5.1.     AGREEMENT OF SUBORDINATION............................................................37
     SECTION 5.2.     PAYMENTS TO HOLDERS...................................................................37
     SECTION 5.3.     SUBROGATION OF SECURITIES.............................................................39
     SECTION 5.4.     AUTHORIZATION TO EFFECT SUBORDINATION.................................................40
     SECTION 5.5.     NOTICE TO TRUSTEE.....................................................................40
     SECTION 5.6.     TRUSTEE'S RELATION TO SENIOR INDEBTEDNESS.............................................41
     SECTION 5.7.     NO IMPAIRMENT OF SUBORDINATION........................................................41
     SECTION 5.8.     CERTAIN CONVERSIONS DEEMED PAYMENT....................................................42
     SECTION 5.9.     ARTICLE APPLICABLE TO PAYING AGENTS...................................................42
     SECTION 5.10.    SENIOR INDEBTEDNESS ENTITLED TO RELY..................................................42

ARTICLE 6 COVENANTS.........................................................................................42

     SECTION 6.1.     PAYMENT OF SECURITIES.................................................................42
     SECTION 6.2.     SEC REPORTS...........................................................................43
     SECTION 6.3.     COMPLIANCE CERTIFICATES...............................................................43
     SECTION 6.4.     FURTHER INSTRUMENTS AND ACTS..........................................................43
     SECTION 6.5.     MAINTENANCE OF CORPORATE EXISTENCE....................................................43
     SECTION 6.6.     RULE 144A INFORMATION REQUIREMENT.....................................................44
     SECTION 6.7.     STAY, EXTENSION AND USURY LAWS........................................................44
     SECTION 6.8.     PAYMENT OF ADDITIONAL INTEREST........................................................44

ARTICLE 7 CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE..............................................44

     SECTION 7.1.     COMPANY MAY CONSOLIDATE, ETC, ONLY ON CERTAIN TERMS...................................44
     SECTION 7.2.     SUCCESSOR SUBSTITUTED.................................................................45

ARTICLE 8 DEFAULT AND REMEDIES..............................................................................45

     SECTION 8.1.     EVENTS OF DEFAULT.....................................................................45
     SECTION 8.2.     ACCELERATION..........................................................................47
     SECTION 8.3.     OTHER REMEDIES........................................................................48
     SECTION 8.4.     WAIVER OF DEFAULTS AND EVENTS OF DEFAULT..............................................48
     SECTION 8.5.     CONTROL BY MAJORITY...................................................................48
     SECTION 8.6.     LIMITATIONS ON SUITS..................................................................48
     SECTION 8.7.     RIGHTS OF HOLDERS TO RECEIVE PAYMENT AND TO CONVERT...................................49
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                                TABLE OF CONTENTS
                                   (CONTINUED)

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     SECTION 8.8.     COLLECTION SUIT BY TRUSTEE............................................................49
     SECTION 8.9.     TRUSTEE MAY FILE PROOFS OF CLAIM......................................................49
     SECTION 8.10.    PRIORITIES............................................................................50
     SECTION 8.11.    UNDERTAKING FOR COSTS.................................................................50

ARTICLE 9 TRUSTEE...........................................................................................50

     SECTION 9.1.     DUTIES OF TRUSTEE.....................................................................50
     SECTION 9.2.     RIGHTS OF TRUSTEE.....................................................................51
     SECTION 9.3.     INDIVIDUAL RIGHTS OF TRUSTEE..........................................................52
     SECTION 9.4.     TRUSTEE'S DISCLAIMER..................................................................52
     SECTION 9.5.     NOTICE OF DEFAULT OR EVENTS OF DEFAULT................................................52
     SECTION 9.6.     REPORTS BY TRUSTEE TO HOLDERS.........................................................52
     SECTION 9.7.     COMPENSATION AND INDEMNITY............................................................53
     SECTION 9.8.     REPLACEMENT OF TRUSTEE................................................................53
     SECTION 9.9.     SUCCESSOR TRUSTEE BY MERGER, ETC......................................................54
     SECTION 9.10.    ELIGIBILITY; DISQUALIFICATION.........................................................54
     SECTION 9.11.    PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.....................................55

ARTICLE 10 SATISFACTION AND DISCHARGE OF INDENTURE..........................................................55

     SECTION 10.1.    SATISFACTION AND DISCHARGE OF INDENTURE...............................................55
     SECTION 10.2.    APPLICATION OF TRUST MONEY............................................................56
     SECTION 10.3.    REPAYMENT TO COMPANY..................................................................56
     SECTION 10.4.    REINSTATEMENT.........................................................................56

ARTICLE 11 AMENDMENTS, SUPPLEMENTS AND WAIVERS..............................................................57

     SECTION 11.1.    WITHOUT CONSENT OF HOLDERS............................................................57
     SECTION 11.2.    WITH CONSENT OF HOLDERS...............................................................57
     SECTION 11.3.    COMPLIANCE WITH TRUST INDENTURE ACT...................................................58
     SECTION 11.4.    REVOCATION AND EFFECT OF CONSENTS.....................................................58
     SECTION 11.5.    NOTATION ON OR EXCHANGE OF SECURITIES.................................................59
     SECTION 11.6.    TRUSTEE TO SIGN AMENDMENTS, ETC.......................................................59

ARTICLE 12 MISCELLANEOUS....................................................................................59

     SECTION 12.1.    TRUST INDENTURE ACT CONTROLS..........................................................59
     SECTION 12.2.    NOTICES...............................................................................59
     SECTION 12.3.    COMMUNICATIONS BY HOLDERS WITH OTHER HOLDERS..........................................60
     SECTION 12.4.    CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT....................................60
     SECTION 12.5.    RECORD DATE FOR VOTE, WAIVER OR CONSENT OF SECURITYHOLDERS............................61
     SECTION 12.6.    RULES BY TRUSTEE, PAYING AGENT, REGISTRAR AND  CONVERSION AGENT.......................61
     SECTION 12.7.    LEGAL HOLIDAYS........................................................................61
     SECTION 12.8.    GOVERNING LAW.........................................................................61
     SECTION 12.9.    NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS.........................................61
     SECTION 12.10.   NO RECOURSE AGAINST OTHERS............................................................62
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                                TABLE OF CONTENTS
                                   (CONTINUED)

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     SECTION 12.11.   SUCCESSORS............................................................................62
     SECTION 12.12.   MULTIPLE COUNTERPARTS.................................................................62
     SECTION 12.13.   SEPARABILITY..........................................................................62
     SECTION 12.14.   TABLE OF CONTENTS, HEADINGS, ETC......................................................62
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                             CROSS-REFERENCE TABLE*

<Table>
<Caption>
TIA                                                                                       INDENTURE
SECTION                                                                                    SECTION
--------                                                                                ------------
<S>                                                                                     <C>
Section     310(a)(1).................................................................  9.10
            (a)(2)....................................................................  9.10
            (a)(3)....................................................................  N.A.**
            (a)(4)....................................................................  N.A.
            (a)(5)....................................................................  9.10
            (b).......................................................................  9.8; 9.10
            (c).......................................................................  N.A.
Section     311(a)....................................................................  9.11
            (b).......................................................................  9.11
            (c).......................................................................  N.A.
Section     312(a)....................................................................  2.5
            (b).......................................................................  12.3
            (c).......................................................................  12.3
Section     313(a)....................................................................  9.6
            (b)(1)....................................................................  N.A.
            (b)(2)....................................................................  9.6
            (c).......................................................................  9.6; 12.2
            (d).......................................................................  9.6
Section     314(a)....................................................................  6.2; 6.4; 12.2
            (b).......................................................................  N.A.
            (c)(1)....................................................................  12.4(a)
            (c)(2)....................................................................  12.4(a)
            (c)(3)....................................................................  N.A.
            (d).......................................................................  N.A.
            (e).......................................................................  12.4(b)
            (f).......................................................................  N.A.
Section     315(a)....................................................................  9.1(b)
            (b).......................................................................  9.5; 12.2
            (c).......................................................................  9.1(a)
            (d).......................................................................  9.1(c)
            (e).......................................................................  8.11
Section     316(a)(last sentence).....................................................  2.9
            (a)(1)(A).................................................................  8.5
            (a)(1)(B).................................................................  8.4
            (a)(2)....................................................................  N.A.
            (b).......................................................................  8.7
            (c).......................................................................  12.5
Section     317(a)(1).................................................................  8.8
            (a)(2)....................................................................  8.9
            (b).......................................................................  2.4
</Table>

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*    This Cross-Reference Table shall not, for any purpose, be deemed a part of
     this Indenture.
**   N.A. means Not Applicable.

                                       -v-
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     THIS INDENTURE dated as of February 15, 2002 is between Cymer, Inc., a
Nevada corporation (the "Company"), and State Street Bank and Trust Company of
California, N.A., a national banking association organized and existing under
the laws of the United States, as Trustee (the "Trustee").

     In consideration of the premises and the purchase of the Securities by the
Holders thereof, both parties agree as follows for the benefit of the other and
for the equal and ratable benefit of the registered Holders of the Company's 3
1/2% Convertible Subordinated Notes Due February 15, 2009:

                                    ARTICLE 1
                   DEFINITIONS AND INCORPORATION BY REFERENCE

     SECTION 1.1     DEFINITIONS.

     "Additional Interest" has the meaning specified in Section 5 of the
Registration Rights Agreement. All references herein to interest accrued or
payable as of any date shall include any Additional Interest accrued or payable
as of such date as provided in the Registration Rights Agreement.

     "Affiliate" means, with respect to any specified person, any other person
directly or indirectly controlling or controlled by or under direct or indirect
common control with such specified person. For the purposes of this definition,
"control" when used with respect to any person means the power to direct the
management and policies of such person, directly or indirectly, whether through
the ownership of voting securities, by contract or otherwise; and the terms
"controlling" and "controlled" have meanings correlative to the foregoing.

     "Agent" means any Registrar, Paying Agent or Conversion Agent.

     "Applicable Procedures" means, with respect to any transfer or exchange of
beneficial ownership interests in a Global Security, the rules and procedures of
the Depositary, in each case to the extent applicable to such transfer or
exchange.

     "Board of Directors" means either the board of directors of the Company or
any committee of the Board of Directors authorized to act for it with respect to
this Indenture.

     "Business Day" means each day that is not a Legal Holiday.

     "Capital Stock" of any Person means any and all shares, interests, rights
to purchase, warrants, options, participations or other equivalents of or
interests in (however designated) equity of such Person, but excluding any debt
securities convertible into such equity.

     "Cash" or "cash" means such coin or currency of the United States as at any
time of payment is legal tender for the payment of public and private debts.

     "Certificated Security" means a Security that is in substantially the form
attached hereto as EXHIBIT A and that does not include the information or the
schedule called for by footnotes 1, 3 and 4 thereof.

     "Clearstream" means Clearstream Banking, S.A. and its successors.

<Page>

     "Common Stock" means the common stock of the Company, $.001 par value, as
it exists on the date of this Indenture and any shares of any class or classes
of Capital Stock of the Company resulting from any reclassification or
reclassifications thereof and which have no preference in respect of dividends
or of amounts payable in the event of any voluntary or involuntary liquidation,
dissolution or winding-up of the Company and which are not subject to redemption
by the Company; PROVIDED, HOWEVER, that if at any time there shall be more than
one such resulting class, the shares of each such class then so issuable on
conversion of Securities shall be substantially in the proportion which the
total number of shares of such class resulting from all such reclassifications
bears to the total number of shares of all such classes resulting from all such
reclassifications and FURTHER PROVIDED that, in the event of a merger or
consolidation in which the Securities become convertible into the Common Stock
of the Parent of the Company, all references to "Common Stock" payable in
connection with the purchase of Securities upon a Change in Control in
accordance with the terms of Section 3.8 shall be deemed to include common stock
of the Parent of the Company.

     "Company" means the party named as such in the first paragraph of this
Indenture until a successor replaces it pursuant to the applicable provisions of
this Indenture, and thereafter "Company" shall mean such successor Company.

     "Corporate Trust Office" means the principal office of the Trustee at which
at any particular time the trust created by this Indenture shall be administered
which office at the date of the execution of this Indenture is located at 633
West 5th Street, 12th Floor, Los Angeles, California 90071, Attention: Corporate
Trust Administration (Cymer, Inc. -- 3 1/2% Convertible Subordinated Notes due
February 15, 2009) or at any other time at such other address as the Trustee may
designate from time to time by notice to the Company.

     "Credit Facility" means that certain Credit Agreement dated as of June 28,
2001, between the Company and Wells Fargo HSBC Trade Bank, National Association,
including any related notes, guarantees, collateral documents, instruments and
agreements executed in connection therewith, and in each case as amended
(including any amendment and restatement thereof), modified, renewed, refunded,
replaced, refinanced or restructured (including, without limitation, any
amendment increasing the amount of available borrowing thereunder) from time to
time and whether with the same or any other agent, lender or group of lenders.

     "Default" or "default" means, when used with respect to the Securities, any
event which is or, after notice or passage of time or both, would be an Event of
Default.

     "Designated Senior Indebtedness" means the Credit Facility, the Guaranty,
and any particular Senior Indebtedness of the Company in which the instrument
creating or evidencing the same or the assumption or guarantee thereof or any
related agreements or documents to which the Company is a party expressly
provides that such Senior Indebtedness shall be "Designated Senior Indebtedness"
for purposes of this Indenture. If any payment made to any holder of any
Designated Senior Indebtedness or its Representative with respect to such
Designated Senior Indebtedness is rescinded or must otherwise be returned by
such holder or Representative upon the insolvency, bankruptcy or reorganization
of the Company or otherwise, the reinstated Indebtedness of the Company arising
as a result of such rescission or return shall constitute Designated Senior
Indebtedness effective as of the date of such rescission or return.

     "Euroclear" means Euroclear Bank S.A./N.V., as operator of the Euroclear
system, and its successors.

     "Exchange Act" means the Securities and Exchange Act of 1934, as amended,
and the rules and regulations promulgated thereunder, as in effect from time to
time.

                                       -2-
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     "Final Maturity Date" means February 15, 2009.

     "GAAP" means generally accepted accounting principles in the United States
of America as in effect as of the date of this Indenture, including those set
forth in (1) the opinions and pronouncements of the Accounting Principles Board
of the American Institute of Certified Public Accountants, (2) the statements
and pronouncements of the Financial Accounting Standards Board, (3) such other
statements by such other entity as approved by a significant segment of the
accounting profession and (4) the rules and regulations of the SEC governing the
inclusion of financial statements (including pro forma financial statements) in
registration statements filed under the Securities Act and periodic reports
required to be filed pursuant to Section 13 of the Exchange Act, including
opinions and pronouncements in staff accounting bulletins and similar written
statements from the accounting staff of the SEC.

     "Global Security" means a permanent Global Security that is in
substantially the form attached hereto as EXHIBIT A and that includes the
information and schedule called for by footnotes 1, 3 and 4 thereof and which is
deposited with the Depositary or its custodian and registered in the name of the
Depositary or its nominee.

     "Guaranty" means that certain Parent Guaranty dated as of October 30, 2001
made by the Company in favor of Wells Fargo HSBC Trade Bank, National
Association pursuant to which the Company guarantees the obligations of its
wholly-owned subsidiary Cymer Japan, Inc. under that certain Credit Agreement
dated as of October 30, 2001 by and between Cymer Japan, Inc. and Wells Fargo
HSBC Trade Bank, National Association.

     "Holder" or "Securityholder" means the person in whose name a Security is
registered on the Primary Registrar's books.

     "Indebtedness" means, with respect to any Person, without duplication, (a)
all indebtedness, obligations and other liabilities (contingent or otherwise) of
such Person (i) for borrowed money (including obligations of such Person in
respect of overdrafts, foreign exchange contracts, currency exchange agreements,
interest rate protection agreements, and any loans or advances from banks
whether or not evidenced by notes or similar instruments or (ii) evidenced by
credit or loan agreements, bonds, debentures, notes or similar instruments
(whether or not the recourse of the lender is to the whole of the assets of such
Person or to only a portion thereof) (other than any accounts payable or other
accrued current liability or obligation incurred in the ordinary course of
business in connection with the obtaining of materials or services), (b) all
reimbursement obligations and other liabilities (contingent or otherwise) of
such Person with respect to letters of credit, bank guarantees or bankers'
acceptances, (c) all obligations and other liabilities (contingent or otherwise)
of such Person in respect of leases of such Person required, in conformity with
GAAP, to be accounted for as capitalized lease obligations on the balance sheet
of such Person (as determined by the Company), (d) all obligations and other
liabilities (contingent or otherwise) of such Person as lessee under (A) leases
for facilities equipment (and related assets leased together with such
equipment), whether or not capitalized and (B) under any lease or related
document (including a purchase agreement, conditional sale, or other title
retention agreement) in connection with the lease of real property or
improvements thereon (or any personal property included as part of any such
lease), including so-called "synthetic leases," which provides that such Person
is contractually obligated to purchase or cause a third party to purchase the
leased property (whether or not such lease transaction is characterized as an
operating lease or capitalized lease in accordance with GAAP) or pay an agreed
upon residual value of the leased property to the lessor and the obligations of
such Person under such lease or related document to purchase or to cause a third
party to purchase such leased property or pay an agreed upon residual value of
the leased property to the lessor, (e) all

                                       -3-
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obligations and other liabilities (contingent or otherwise) of such Person with
respect to any interest rate or other swap, cap, floor or collar agreement, or
hedge agreement, forward contract, other similar instrument or agreement or
foreign currency hedge, exchange, purchase or similar instrument or agreement;
(f) all direct or indirect guarantees, agreements to be jointly liable or
similar agreements by such Person in respect of, and obligations or liabilities,
contingent or otherwise, of such Person to purchase or otherwise acquire or
otherwise assure a creditor against loss in respect of, indebtedness,
obligations or liabilities of another Person of the kind described in clauses
(a) through (e), (g) any indebtedness or other obligations described in clauses
(a) through (f) secured by any mortgage, pledge, lien or encumbrance existing on
property which is owned or held by such Person, regardless of whether the
indebtedness or other obligation secured thereby shall have been assumed by such
Person and (h) any and all deferrals, renewals, extensions, refinancings,
replacements and refundings of, or amendments, modifications or supplements to,
any indebtedness, obligation or liability of the kind described in clauses (a)
through (g).

     "Indenture" means this Indenture as amended or supplemented from time to
time pursuant to the terms of this Indenture.

     "Initial Purchasers" mean Credit Suisse First Boston Corporation and
Merrill Lynch Pierce Fenner & Smith Incorporated.

     "Officer" means the Chairman or any Co-Chairman of the Board, any Vice
Chairman of the Board, the Chief Executive Officer, the Chief Operating Officer,
the Chief Legal Officer, the Treasurer, any Assistant Treasurer, the President,
any Vice President, the Chief Financial Officer, the Controller, the Secretary
or any Assistant Secretary of the Company.

     "Officers' Certificate" means a certificate signed by two Officers;
PROVIDED, HOWEVER, that for purposes of Sections 4.11 and 6.3, "Officers'
Certificate" means a certificate signed by the principal executive officer,
principal financial officer or principal accounting officer of the Company and
by one other Officer.

     "Opinion of Counsel" means a written opinion from legal counsel. The
counsel may be an employee of or counsel to the Company or the Trustee.

     "Parent" means in respect of any Person, any corporation which controls,
directly or indirectly (through, or in combination with, one or more
Subsidiaries), more than 50% of the total voting power of shares of Capital
Stock or other interests (including partnership interests) entitled (without
regard to the occurrence of any contingency) to vote in the election of
directors, managers, general partners or trustees of such Person.

     "Person" or "person" means any individual, corporation, partnership,
limited liability company, joint venture, association, joint-stock company,
trust, unincorporated organization, government or any agency or political
subdivision thereof or any other entity.

     "Principal" or "principal" of a debt security, including the Securities,
means the principal of the security plus, when appropriate, the premium, if any,
on the security.

     "Redemption Date" or "redemption date" when used with respect to any
Security to be redeemed, means the date fixed for such redemption pursuant to
this Indenture, including, without limitation, any Provisional Redemption Date.

                                       -4-
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     "Redemption Price" when used with respect to any Security to be redeemed,
means the price fixed for such redemption pursuant to this Indenture, as set
forth in the form of Security annexed as EXHIBIT A hereto.

     "Registration Rights Agreement" means the Registration Rights Agreement
dated as of February 15, 2002, between the Company and the Initial Purchasers.

     "Regulation S" means Regulation S under the Securities Act or any successor
for such Rule.

     "Representative" means the (a) indenture trustee or other trustee, agent or
representative for any Senior Indebtedness or (b) with respect to any Senior
Indebtedness that does not have any such trustee, agent or other representative,
(i) in the case of such Senior Indebtedness issued pursuant to an agreement
providing for voting arrangements as among the holders or owners of such Senior
Indebtedness, any holder or owner of such Senior Indebtedness acting with the
consent of the required persons necessary to bind such holders or owners of such
Senior Indebtedness and (ii) in the case of all other such Senior Indebtedness,
the holder or owner of such Senior Indebtedness.

     "Restricted Global Security" means a Global Security that is a Restricted
Security.

     "Restricted Security" means a Security required to bear the restricted
legend set forth in the form of Security set forth in EXHIBIT A of this
Indenture.

     "Rule 144" means Rule 144 under the Securities Act or any successor to such
Rule.

     "Rule 144A" means Rule 144A under the Securities Act or any successor to
such Rule.

     "SEC" means the Securities and Exchange Commission.

     "Securities" means the 3 1/2% Convertible Subordinated Notes Due February
15, 2009 or any of them (each, a "Security"), as amended or supplemented from
time to time, that are issued under this Indenture.

     "Securities Act" means the Securities Act of 1933, as amended, and the
rules and regulations promulgated thereunder, as in effect from time to time.

     "Securities Custodian" means the Trustee, as custodian with respect to the
Securities in global form, or any successor thereto.

     "Senior Indebtedness" means the principal of, premium, if any, interest
(including all interest accruing after the commencement of any bankruptcy or
similar proceeding, whether or not a claim for post-petition interest is allowed
as a claim in any such proceeding), rent, and all fees, costs, expenses and
other amounts accrued or due on or in connection with, Indebtedness of the
Company, whether secured or unsecured, absolute or contingent, due or to become
due, outstanding on the date of this Indenture or thereafter created, incurred,
assumed, guaranteed or in effect guaranteed by the Company (including all
deferrals, renewals, extensions or refundings of, or amendments, modifications
or supplements to, the foregoing), unless in the case of any particular
Indebtedness the instrument creating or evidencing the same or the assumption or
guarantee thereof expressly provides that such Indebtedness shall not be senior
in right of payment to the Securities or expressly provides that such
Indebtedness is "pari passu" or "junior" to the Securities. Notwithstanding the
foregoing, the term Senior Indebtedness shall not include any (i) Indebtedness
of the Company to any Subsidiary of the Company, other than Indebtedness to any
of the Company's Subsidiaries arising by a reason of guarantees by the Company
of Indebtedness of such

                                       -5-
<Page>

Subsidiary to a Person that is not the Company's Subsidiary and (ii) the
Company's Step-Up 3 1/2 / 7 1/4% Convertible Subordinated Notes due 2004. If any
payment made to any holder of any Senior Indebtedness or its Representative with
respect to such Senior Indebtedness is rescinded or must otherwise be returned
by such holder or Representative upon the insolvency, bankruptcy or
reorganization of the Company or otherwise, the reinstated Indebtedness of the
Company arising as a result of such rescission or return shall constitute Senior
Indebtedness effective as of the date of such rescission or return.

     "Significant Subsidiary" means, in respect of any Person, a Subsidiary of
such Person that would constitute a "significant subsidiary" as such term is
defined under Rule 1-02 of Regulation S-X under the Securities Act and the
Exchange Act.

     "Subsidiary" means, in respect of any Person, any corporation, association,
partnership or other business entity of which more than 50% of the total voting
power of shares of Capital Stock or other interests (including partnership
interests) entitled (without regard to the occurrence of any contingency) to
vote in the election of directors, managers, general partners or trustees
thereof is at the time owned or controlled, directly or indirectly, by (i) such
Person; (ii) such Person and one or more Subsidiaries of such Person; or (iii)
one or more Subsidiaries of such Person.

     "TIA" means the Trust Indenture Act of 1939, as amended, and the rules and
regulations thereunder as in effect on the date of this Indenture, except as
provided in Section 11.3, and except to the extent any amendment to the Trust
Indenture Act expressly provides for application of the Trust Indenture Act as
in effect on another date.

     "Trading Day" means, with respect to any security, each Monday, Tuesday,
Wednesday, Thursday and Friday, other than any day on which securities are not
generally traded on the principal exchange or market in which such security is
traded.

     "Transfer Restricted Securities" has the meaning set forth in the
Registration Rights Agreement and such securities shall bear the legends set
forth in the form of Security included in EXHIBIT A hereto (corresponding to
footnote 2 thereof) and include the certificate corresponding to footnote 5
thereof.

     "Trustee" means the party named as such in the first paragraph of this
Indenture until a successor replaces it in accordance with the provisions of
this Indenture, and thereafter means the successor.

     "Trust Officer" means, with respect to the Trustee, any officer assigned to
the Corporate Trust Office, and also, with respect to a particular matter, any
other officer to whom such matter is referred because of such officer's
knowledge of and familiarity with the particular subject.

     "Unrestricted Certificated Security" means a Certificated Security that is
not a Restricted Security.

     "Unrestricted Global Security" means a Global Security that is not a
Restricted Security.

     "Vice President" when used with respect to the Company or the Trustee,
means any vice president, whether or not designated by a number or a word or
words added before or after the title "vice president."

     "Voting Stock" of a Person means all classes of Capital Stock or other
interests (including partnership interests) of such Person then outstanding and
normally entitled (without regard to the occurrence of any contingency) to vote
in the election of directors, managers or trustees thereof.

                                       -6-
<Page>

     SECTION 1.2     OTHER DEFINITIONS.

<Table>
<Caption>
                                      TERM                                                  DEFINED IN SECTION
---------------------------------------------------------------------------------------    ---------------------
<S>                                                                                               <C>
"Agent Members"........................................................................            2.1(b)
"Bankruptcy Law".......................................................................            8.1
"Change in Control"....................................................................            3.8(a)
"Change in Control Purchase Date"......................................................            3.8(a)
"Change in Control Purchase Notice"....................................................            3.8(c)
"Change in Control Purchase Price".....................................................            3.8(a)
"Closing Price"........................................................................            4.6(g)
"Company Order"........................................................................            2.2
"Conversion Agent".....................................................................            2.3
"Conversion Date"......................................................................            4.2
"Conversion Price".....................................................................            4.6
"Current Market Price".................................................................            4.6(g)
"Custodian"............................................................................            8.1
"DTC"..................................................................................            2.1
"Depositary"...........................................................................            2.1
"Determination Date"...................................................................            4.6(d)
"Event of Default".....................................................................            8.1
"Existing Rights"......................................................................            4.6(c)
"Existing Rights Plan".................................................................            4.6(c)
"Expiration Date"......................................................................            4.6(e)
"Expiration Time"......................................................................            4.6(e)
"Future Rights Plan"...................................................................            4.6(c)
"Legal Holiday"........................................................................           12.7
"Legend" ..............................................................................            2.12
"Make-Whole Payment" ..................................................................            3.1(a)
"NNM"..................................................................................            4.6(g)
"Notice Date" .........................................................................            3.1
"Paying Agent".........................................................................            2.3
"Payment Blockage Notice"..............................................................            5.2
"Primary Registrar"....................................................................            2.3
"Provisional Redemption" ..............................................................            3.1(a)
"Provisional Redemption Date" .........................................................            3.1(a)
"Provisional Redemption Price" ........................................................            3.1(a)
"Purchase Agreement"...................................................................            2.1
"Purchased Shares".....................................................................            4.6(e)
"QIB"..................................................................................            2.1
"Registrar"............................................................................            2.3
"Rights"...............................................................................            4.6(c)
"Rights Plan" .........................................................................            4.6(c)
"Triggering Distribution"..............................................................            4.6(d)
"Trigger Event"........................................................................            4.6(c)
"Unissued Shares"......................................................................            3.8(a)
</Table>

                                       -7-
<Page>

     SECTION 1.3     TRUST INDENTURE ACT PROVISIONS.

     Whenever this Indenture refers to a provision of the TIA, that provision is
incorporated by reference in and made a part of this Indenture. The Indenture
shall also include those provisions of the TIA required to be included herein by
the provisions of the Trust Indenture Reform Act of 1990. The following TIA
terms used in this Indenture have the following meanings:

     "indenture securities" means the Securities;

     "indenture security holder" means a Securityholder;

     "indenture to be qualified" means this Indenture;

     "indenture trustee" or "institutional trustee" means the Trustee; and

     "obligor" on the indenture securities means the Company or any other
obligor on the Securities.

     All other terms used in this Indenture that are defined in the TIA, defined
by TIA reference to another statute or defined by any SEC rule and not otherwise
defined herein have the meanings assigned to them therein.

     SECTION 1.4     RULES OF CONSTRUCTION.

     Unless the context otherwise requires:

          (A)  a term has the meaning assigned to it;

          (B)  an accounting term not otherwise defined has the meaning assigned
to it in accordance with GAAP;

          (C)  words in the singular include the plural, and words in the plural
include the singular;

          (D)  provisions apply to successive events and transactions;

          (E)  the term "merger" includes a statutory share exchange and the
term "merged" has a correlative meaning;

          (F)  the masculine gender includes the feminine and the neuter;

          (G)  references to agreements and other instruments include subsequent
amendments thereto; and

          (H)  "herein," "hereof" and other words of similar import refer to
this Indenture as a whole and not to any particular Article, Section or other
subdivision.

                                       -8-
<Page>

                                    ARTICLE 2
                                 THE SECURITIES

     SECTION 2.1     FORM AND DATING.

     The Securities and the Trustee's certificate of authentication shall be
substantially in the respective forms set forth in EXHIBIT A, which Exhibit is
incorporated in and made part of this Indenture. The Securities may have
notations, legends or endorsements required by law, stock exchange rule or
usage. The Company shall provide any such notations, legends or endorsements to
the Trustee in writing. Each Security shall be dated the date of its
authentication. The Securities are being offered and sold by the Company
pursuant to a Purchase Agreement, dated February 12, 2002 (the "Purchase
Agreement"), among the Company and the several Initial Purchasers, in
transactions exempt from, or not subject to, the registration requirements of
the Securities Act.

     (a)  RESTRICTED GLOBAL SECURITIES. All of the Securities are initially
being offered and sold (i) to a person that is not a U.S. Person (as defined in
Regulation S) in offshore transactions in reliance on Regulation S under the
Securities Act ("Regulation S") or (ii) to qualified institutional buyers as
defined in Rule 144A (collectively, "QIBs" or individually, each a "QIB") in
reliance on Rule 144A under the Securities Act and shall be issued initially in
the form of one or more Restricted Global Securities, which shall be deposited
on behalf of the purchasers of the Securities represented thereby with the
Trustee, at its Corporate Trust Office, as custodian for the depositary, The
Depository Trust Company ("DTC") (such depositary, or any successor thereto,
being hereinafter referred to as the "Depositary"), and registered in the name
of its nominee, Cede & Co., for the accounts of participants in the Depositary
(and, in the case of Securities held in accordance with Regulation S, registered
with the Depositary for the accounts of designated agents holding on behalf of
Euroclear or Clearstream) duly executed by the Company and authenticated by the
Trustee as hereinafter provided. The aggregate principal amount of the
Restricted Global Securities may from time to time be increased or decreased by
adjustments made on the records of the Securities Custodian as hereinafter
provided, subject in each case to compliance with the Applicable Procedures.

     (b)  GLOBAL SECURITIES IN GENERAL. Each Global Security shall represent
such of the outstanding Securities as shall be specified therein and each shall
provide that it shall represent the aggregate amount of outstanding Securities
from time to time endorsed thereon and that the aggregate amount of outstanding
Securities represented thereby may from time to time be reduced or increased, as
appropriate, to reflect replacements, exchanges, redemptions, purchases or
conversions of such Securities. Any adjustment of the aggregate principal amount
of a Global Security to reflect the amount of any increase or decrease in the
amount of outstanding Securities represented thereby shall be made by the
Trustee in accordance with instructions given by the Holder thereof as required
by Section 2.12 hereof and shall be made on the records of the Trustee and the
Depositary.

     Members of, or participants in, the Depositary ("Agent Members") shall have
no rights under this Indenture with respect to any Global Security held on their
behalf by the Depositary or under the Global Security, and the Depositary
(including, for this purpose, its nominee) may be treated by the Company, the
Trustee and any agent of the Company or the Trustee as the absolute owner and
Holder of such Global Security for all purposes whatsoever. Notwithstanding the
foregoing, nothing herein shall (A) prevent the Company, the Trustee or any
agent of the Company or the Trustee from giving effect to any written
certification, proxy or other authorization furnished by the Depositary or (B)
impair, as between the Depositary and its Agent Members, the operation of
customary practices governing the exercise of the rights of a Holder of any
Security.

                                       -9-
<Page>

     (c)  Book Entry Provisions. The Company shall execute and the Trustee
shall, in accordance with this Section 2.1(c), authenticate and deliver
initially one or more Global Securities that (i) shall be registered in the name
of the Depositary or its nominee, (ii) shall be delivered by the Trustee to the
Depositary or pursuant to the Depositary's instructions and (iii) shall bear
legends substantially to the following effect:

"UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY TO CYMER, INC. (THE "COMPANY") OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS
REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (AND ANY PAYMENT
HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE
OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE
THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. TRANSFERS OF
THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS TO NOMINEES OF THE DEPOSITORY
TRUST COMPANY OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR'S NOMINEE AND
TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE
IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN ARTICLE TWO OF THE INDENTURE
REFERRED TO ON THE REVERSE HEREOF."

     The provisions of the "Operating Procedures of the Euroclear System" and
"Terms and Conditions Governing Use of Euroclear" and the "Management
Regulations and Instructions to Participants" of Clearstream shall be applicable
to interests in any Global Securities that are held by participants through
Euroclear or Clearstream. The Trustee shall have no obligation to notify holders
of any such procedures or to monitor or enforce compliance with the same.

     SECTION 2.2     EXECUTION AND AUTHENTICATION.

     An Officer shall sign the Securities for the Company by manual or facsimile
signature attested by the manual or facsimile signature of the Secretary or an
Assistant Secretary of the Company. Typographic and other minor errors or
defects in any such facsimile signature shall not affect the validity or
enforceability of any Security which has been authenticated and delivered by the
Trustee.

     If an Officer whose signature is on a Security no longer holds that office
at the time the Trustee authenticates the Security, the Security shall be valid
nevertheless.

     A Security shall not be valid until an authorized signatory of the Trustee
manually signs the certificate of authentication on the Security. The signature
shall be conclusive evidence that the Security has been authenticated under this
Indenture.

     The Trustee shall authenticate and make available for delivery Securities
for original issue in the aggregate principal amount of up to $250,000,000 upon
receipt of a written order or orders of the Company signed by two Officers of
the Company (a "Company Order"). The Company Order shall specify the amount of
Securities to be authenticated, shall provide that all such Securities will be
represented by a Restricted Global Security and the date on which each original
issue of Securities is to be authenticated. The aggregate principal amount of
Securities outstanding at any time may not exceed $250,000,000 except as
provided in Section 2.7.

                                      -10-
<Page>

     The Trustee shall act as the initial authenticating agent. Thereafter, the
Trustee may appoint an authenticating agent acceptable to the Company to
authenticate Securities. An authenticating agent may authenticate Securities
whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent. An
authenticating agent shall have the same rights as an Agent to deal with the
Company or an Affiliate of the Company.

     The Securities shall be issuable only in registered form without coupons
and only in denominations of $1,000 principal amount and any integral multiple
thereof.

     SECTION 2.3     REGISTRAR, PAYING AGENT AND CONVERSION AGENT.

     The Company shall maintain one or more offices or agencies where Securities
may be presented for registration of transfer or for exchange (each, a
"Registrar"), one or more offices or agencies where Securities may be presented
for payment (each, a "Paying Agent"), one or more offices or agencies where
Securities may be presented for conversion (each, a "Conversion Agent") and one
or more offices or agencies where notices and demands to or upon the Company in
respect of the Securities and this Indenture may be served. The Company will at
all times maintain a Paying Agent, Conversion Agent, Registrar and an office or
agency where notices and demands to or upon the Company in respect of the
Securities and this Indenture may be served in the Borough of Manhattan, The
City of New York. One of the Registrars (the "Primary Registrar") shall keep a
register of the Securities and of their transfer and exchange.

     The Company shall enter into an appropriate agency agreement with any Agent
that is not a party to this Indenture. The agreement shall implement the
provisions of this Indenture that relate to such Agent. The Company shall notify
the Trustee of the name and address of any Agent not a party to this Indenture.
If the Company fails to maintain a Registrar, Paying Agent, Conversion Agent or
agent for service of notices and demands in any place required by this
Indenture, or fails to give the foregoing notice, the Trustee shall act as such.
The Company or any Affiliate of the Company may act as Paying Agent (except for
the purposes of Section 6.1 and Article 10).

     The Company hereby initially designates the Trustee as Paying Agent,
Registrar, Primary Registrar, Securities Custodian and Conversion Agent, and
each of the Corporate Trust Office of the Trustee and the office or agency of
the Trustee in the Borough of Manhattan, The City of New York (which shall
initially be State Street Bank and Trust Company, N.A., an Affiliate of the
Trustee, as agent of the Trustee located at 61 Broadway, New York, New York
10006, Attention: Corporate Trust Administration (Cymer, Inc. -- 3 1/2%
Convertible Subordinated Notes due February 15, 2009)), one such office or
agency of the Company for each of the aforesaid purposes.

     SECTION 2.4     PAYING AGENT TO HOLD MONEY IN TRUST.

     Prior to 11:00 a.m., New York City time, on each due date of the principal
of or interest, if any, on any Securities, the Company shall deposit with a
Paying Agent a sum sufficient to pay such principal or interest, if any, so
becoming due. Subject to Section 5.2, a Paying Agent shall hold in trust for the
benefit of Securityholders or the Trustee all money held by the Paying Agent for
the payment of principal of or interest, if any, on the Securities, and shall
notify the Trustee of any default by the Company (or any other obligor on the
Securities) in making any such payment. If the Company or an Affiliate of the
Company acts as Paying Agent, it shall, before 11:00 a.m., New York City time,
on each due date of the principal of or interest on any Securities, segregate
the money and hold it as a separate trust fund. The Company at any time may
require a Paying Agent to pay all money held by it to the Trustee, and the
Trustee may at any time during the

                                      -11-
<Page>

continuance of any default, upon written request to a Paying Agent, require such
Paying Agent to pay forthwith to the Trustee all sums so held in trust by such
Paying Agent. Upon doing so, the Paying Agent (other than the Company) shall
have no further liability for the money.

     SECTION 2.5     SECURITYHOLDER LISTS.

     The Trustee shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
Securityholders. If the Trustee is not the Primary Registrar, the Company shall
furnish to the Trustee on or before each semiannual interest payment date and at
such other times as the Trustee may request in writing a list in such form and
as of such date as the Trustee may reasonably require of the names and addresses
of Securityholders.

     SECTION 2.6     TRANSFER AND EXCHANGE.

     (a)  Subject to compliance with any applicable additional requirements
contained in Section 2.12, when a Security is presented to a Registrar with a
request to register a transfer thereof or to exchange such Security for an equal
principal amount of Securities of other authorized denominations, the Registrar
shall register the transfer or make the exchange as requested; PROVIDED,
HOWEVER, that every Security presented or surrendered for registration of
transfer or exchange shall be duly endorsed or accompanied by an assignment form
and, if applicable, a transfer certificate each in the form included in EXHIBIT
A and in form satisfactory to the Registrar duly executed by the Holder thereof
or its attorney duly authorized in writing. To permit registration of transfers
and exchanges, upon surrender of any Security for registration of transfer or
exchange at an office or agency maintained pursuant to Section 2.3, the Company
shall execute and the Trustee shall authenticate Securities of a like aggregate
principal amount at the Registrar's request. Any exchange or transfer shall be
without charge, except that the Company or the Registrar may require payment of
a sum sufficient to cover any tax or other governmental charge that may be
imposed in relation thereto, and PROVIDED THAT this sentence shall not apply to
any exchange pursuant to Section 2.7, 2.10, 2.12(a), 3.6, 3.11, 4.2 (last
paragraph) or 11.5.

     Neither the Company, any Registrar nor the Trustee shall be required to
exchange or register a transfer of (i) any Securities for a period of 15 days
next preceding any mailing of a notice of Securities to be redeemed, (ii) any
Securities or portions thereof selected or called for redemption (except, in the
case of redemption of a Security in part, the portion thereof not to be
redeemed) or (iii) any Securities or portions thereof in respect of which a
Change in Control Purchase Notice has been delivered and not withdrawn by the
Holder thereof (except, in the case of the purchase of a Security in part, the
portion thereof not to be purchased).

     All Securities issued upon any transfer or exchange of Securities shall be
valid obligations of the Company, evidencing the same debt and entitled to the
same benefits under this Indenture, as the Securities surrendered upon such
transfer or exchange.

     (b)  Any Registrar appointed pursuant to Section 2.3 hereof shall provide
to the Trustee such information as the Trustee may reasonably require in
connection with the delivery by such Registrar of Securities upon transfer or
exchange of Securities.

     (c)  Each Holder of a Security agrees to indemnify the Company and the
Trustee against any liability that may result from the transfer, exchange or
assignment of such Holder's Security in violation of any provision of this
Indenture and/or applicable United States federal or state securities law.

                                      -12-
<Page>

     The Trustee shall have no obligation or duty to monitor, determine or
inquire as to compliance with any restrictions on transfer imposed under this
Indenture or under applicable law with respect to any transfer of any interest
in any Security (including any transfers between or among Agent Members or other
beneficial owners of interests in any Global Security) other than (i) to require
delivery of such certificates and other documentation or evidence as are
expressly required by, and to do so if and when expressly required by the terms
of, this Indenture, (ii) to examine the same to determine substantial compliance
as to form with the express requirements hereof and (iii) to perform such other
monitoring, determinations and inquiries if and when the Indenture expressly
requires it to do so.

     SECTION 2.7     REPLACEMENT SECURITIES.

     If any mutilated Security is surrendered to the Company, a Registrar or the
Trustee, or the Company, a Registrar and the Trustee receive evidence to their
satisfaction of the destruction, loss or theft of any Security, and there is
delivered to the Company, the applicable Registrar and the Trustee such Security
or indemnity as will be required by them to save each of them harmless, then, in
the absence of notice to the Company, such Registrar or the Trustee that such
Security has been acquired by a bona fide purchaser, the Company shall execute,
and upon its written request the Trustee shall authenticate and deliver, in
exchange for any such mutilated Security or in lieu of any such destroyed, lost
or stolen Security, a new Security of like tenor and principal amount, bearing a
number not contemporaneously outstanding.

     In case any such mutilated, destroyed, lost or stolen Security has become
or is about to become due and payable, or is about to be redeemed or purchased
by the Company pursuant to Article 3, the Company in its discretion may, instead
of issuing a new Security, pay, redeem or purchase such Security, as the case
may be.

     Upon the issuance of any new Securities under this Section 2.7, the Company
may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
reasonable expenses (including the reasonable fees and expenses of the Trustee
or the Registrar) in connection therewith.

     Every new Security issued pursuant to this Section 2.7 in lieu of any
mutilated, destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the mutilated,
destroyed, lost or stolen Security shall be at any time enforceable by anyone,
and shall be entitled to all benefits of this Indenture equally and
proportionately with any and all other Securities duly issued hereunder.

     The provisions of this Section 2.7 are (to the extent lawful) exclusive and
shall preclude (to the extent lawful) all other rights and remedies with respect
to the replacement or payment of mutilated, destroyed, lost or stolen
Securities.

     SECTION 2.8     OUTSTANDING SECURITIES.

     Securities outstanding at any time are all Securities authenticated by the
Trustee, except for those canceled by it, those converted pursuant to Article 4,
those delivered to it for cancellation or surrendered for transfer or exchange
and those described in this Section 2.8 as not outstanding.

     If a Security is replaced pursuant to Section 2.7, it ceases to be
outstanding unless the Company receives proof satisfactory to it that the
replaced Security is held by a bona fide purchaser.

                                      -13-
<Page>

     If a Paying Agent (other than the Company or an Affiliate of the Company)
holds on a Redemption Date, a Change in Control Purchase Date or the Final
Maturity Date money sufficient to pay the principal of (including premium, if
any) and accrued interest on Securities (or portions thereof) payable on that
date, then on and after such Redemption Date, Change in Control Purchase Date or
the Final Maturity Date, as the case may be, such Securities (or portions
thereof, as the case may be) shall cease to be outstanding and interest on them
shall cease to accrue; PROVIDED, THAT if such Securities are to be redeemed,
notice of such redemption has been duly given pursuant to this Indenture or
provision therefore reasonably satisfactory to the Trustee has been made.

     Subject to the restrictions contained in Section 2.9, a Security does not
cease to be outstanding because the Company or an Affiliate of the Company holds
the Security.

     SECTION 2.9     TREASURY SECURITIES.

     In determining whether the Holders of the required principal amount of
Securities have concurred in any notice, direction, waiver or consent,
Securities owned by the Company or any other obligor on the Securities or by any
Affiliate of the Company or of such other obligor shall be disregarded, except
that, for purposes of determining whether the Trustee shall be protected in
relying on any such notice, direction, waiver or consent, only Securities which
a Trust Officer of the Trustee actually knows are so owned shall be so
disregarded. Securities so owned which have been pledged in good faith shall not
be disregarded if the pledgee establishes to the satisfaction of the Trustee the
pledgee's right so to act with respect to the Securities and that the pledgee is
not the Company or any other obligor on the Securities or any Affiliate of the
Company or of such other obligor.

     SECTION 2.10    TEMPORARY SECURITIES.

     Until definitive Securities are ready for delivery, the Company may prepare
and execute, and, upon receipt of a Company Order, the Trustee shall
authenticate and deliver, temporary Securities. Temporary Securities shall be
substantially in the form of definitive Securities but may have variations that
the Company with the consent of the Trustee considers appropriate for temporary
Securities. Without unreasonable delay, the Company shall prepare and the
Trustee shall authenticate and deliver definitive Securities in exchange for
temporary Securities.

     SECTION 2.11    CANCELLATION.

     The Company at any time may deliver Securities to the Trustee for
cancellation. The Registrar, the Paying Agent and the Conversion Agent shall
forward to the Trustee or its agent any Securities surrendered to them for
transfer, exchange, redemption, payment or conversion. The Trustee and no one
else shall promptly cancel, in accordance with its standard procedures, all
Securities surrendered for transfer, exchange, redemption, payment, conversion
or cancellation and shall deliver the canceled Securities to the Company. All
Securities which are redeemed, purchased or otherwise acquired by the Company or
any of its Subsidiaries prior to the Final Maturity Date shall be delivered to
the Trustee for cancellation and the Company may not hold or resell such
Securities or issue any new Securities to replace any such Securities or any
Securities that any Holder has converted pursuant to Article 4. Without
limitation to the foregoing, any Securities acquired by any investment bankers
or other purchasers pursuant to Section 3.7 shall be surrendered for conversion
and thereafter cancelled, and may not be reoffered, sold or otherwise
transferred.

                                      -14-
<Page>

     SECTION 2.12    LEGEND; ADDITIONAL TRANSFER AND EXCHANGE REQUIREMENTS.

     (a)  If Securities are issued upon the transfer, exchange or replacement of
Securities subject to restrictions on transfer and bearing the legends set forth
on the forms of Securities attached hereto as EXHIBIT A (collectively, the
"Legend"), or if a request is made to remove the Legend on a Security, the
Securities so issued shall bear the Legend, or the Legend shall not be removed,
as the case may be, unless there is delivered to the Company and the Registrar
such satisfactory evidence, which shall include an opinion of counsel if
requested by the Company or such Registrar, as may be reasonably required by the
Company and the Registrar, that neither the Legend nor the restrictions on
transfer set forth therein are required to ensure that transfers thereof comply
with the provisions of Rule 144A, Rule 144 or Regulation S under the Securities
Act or that such Securities are not "restricted" within the meaning of Rule 144
under the Securities Act; PROVIDED THAT no such evidence need be supplied in
connection with the sale of such Security pursuant to a registration statement
that is effective at the time of such sale. Upon (i) provision of such
satisfactory evidence if requested, or (ii) notification by the Company to the
Trustee and Registrar of the sale of such Security pursuant to a registration
statement that is effective at the time of such sale, the Trustee, at the
written direction of the Company, shall authenticate and deliver a Security that
does not bear the Legend. If the Legend is removed from the face of a Security
and the Security is subsequently held by an Affiliate of the Company, the Legend
shall be reinstated.

     (b)  A Global Security may not be transferred, in whole or in part, to any
Person other than the Depositary or a nominee or any successor thereof, and no
such transfer to any such other Person may be registered; PROVIDED THAT the
foregoing shall not prohibit any transfer of a Security that is issued in
exchange for a Global Security but is not itself a Global Security. No transfer
of a Security to any Person shall be effective under this Indenture or the
Securities unless and until such Security has been registered in the name of
such Person. Notwithstanding any other provisions of this Indenture or the
Securities, transfers of a Global Security, in whole or in part, shall be made
only in accordance with this Section 2.12.

     (c)  Subject to the succeeding paragraph, every Security shall be subject
to the restrictions on transfer provided in the Legend other than a Restricted
Global Security. Whenever any Restricted Security other than a Restricted Global
Security is presented or surrendered for registration of transfer or for
exchange for a Security registered in a name other than that of the Holder, such
Security must be accompanied by a certificate in substantially the form set
forth in the Certificate to be Delivered upon Exchange or Registration of
Transfer Restricted Securities included in EXHIBIT A, dated the date of such
surrender and signed by the Holder of such Security, as to compliance with such
restrictions on transfer. The Registrar shall not be required to accept for such
registration of transfer or exchange any Security not so accompanied by a
properly completed certificate.

     (d)  The restrictions imposed by the Legend upon the transferability of any
Security shall cease and terminate when such Security has been sold pursuant to
an effective registration statement under the Securities Act or transferred in
compliance with Rule 144 under the Securities Act (or any successor provision
thereto) or, if earlier, upon the expiration of the holding period applicable to
sales thereof under Rule 144(k) under the Securities Act (or any successor
provision). Any Security as to which such restrictions on transfer shall have
expired in accordance with their terms or shall have terminated may, upon a
surrender of such Security for exchange to the Registrar in accordance with the
provisions of this Section 2.12 (accompanied, in the event that such
restrictions on transfer have terminated by reason of a transfer in compliance
with Rule 144 or any successor provision, by, if requested, an opinion of
counsel reasonably acceptable to the Company, addressed to the Company and in
form acceptable to the Company, to the effect

                                      -15-
<Page>

that the transfer of such Security has been made in compliance with Rule 144 or
such successor provision), be exchanged for a new Security, of like tenor and
aggregate principal amount, which shall not bear the restrictive Legend. The
Company shall inform the Trustee of the effective date of any registration
statement registering the Securities under the Securities Act. The Trustee shall
not be liable for any action taken or omitted to be taken by it in good faith in
accordance with the aforementioned opinion of counsel or registration statement.

     (e)  As used in the preceding two paragraphs of this Section 2.12, the term
"transfer" encompasses any sale, pledge, transfer, hypothecation or other
disposition of any Security.

     (f)  The provisions of clauses (i), (ii), (iii), (iv) and (v) below shall
apply only to Global Securities:

               (i)    Notwithstanding any other provisions of this Indenture
          or the Securities, a Global Security shall not be exchanged in whole
          or in part for a Security registered in the name of any Person other
          than the Depositary or one or more nominees thereof; PROVIDED THAT a
          Global Security may be exchanged for Securities registered in the
          names of any person designated by the Depositary in the event that (A)
          the Depositary has notified the Company that it is unwilling or unable
          to continue as Depositary for such Global Security or such Depositary
          has ceased to be a "clearing agency" registered under the Exchange
          Act, and a successor Depositary is not appointed by the Company within
          90 days, (B) the Company has provided the Depositary with written
          notice that it has decided to discontinue use of the system of book
          entry transfer through the Depositary or any successor Depositary or
          (C) an Event of Default has occurred and is continuing with respect to
          the Securities. Any Global Security exchanged pursuant to clauses (A)
          or (B) above shall be so exchanged in whole and not in part, and any
          Global Security exchanged pursuant to clause (C) above may be
          exchanged in whole or from time to time in part as directed by the
          Depositary. Any Security issued in exchange for a Global Security or
          any portion thereof shall be a Global Security; PROVIDED THAT any such
          Security so issued that is registered in the name of a Person other
          than the Depositary or a nominee thereof shall not be a Global
          Security.

               (ii)   Securities issued in exchange for a Global Security or any
          portion thereof shall be issued in definitive, fully registered form,
          without interest coupons, shall have an aggregate principal amount
          equal to that of such Global Security or portion thereof to be so
          exchanged, shall be registered in such names and be in such authorized
          denominations as the Depositary shall designate and shall bear the
          applicable legends provided for herein. Any Global Security to be
          exchanged in whole shall be surrendered by the Depositary to the
          Trustee, as Registrar. With regard to any Global Security to be
          exchanged in part, either such Global Security shall be so surrendered
          for exchange or, if the Trustee is acting as custodian for the
          Depositary or its nominee with respect to such Global Security, the
          principal amount thereof shall be reduced, by an amount equal to the
          portion thereof to be so exchanged, by means of an appropriate
          adjustment made on the records of the Trustee. Upon any such surrender
          or adjustment, the Trustee shall authenticate and deliver the Security
          issuable on such exchange to or upon the order of the Depositary or an
          authorized representative thereof.

               (iii)  Subject to the provisions of clause (v) below, the
          registered Holder may grant proxies and otherwise authorize any
          Person, including Agent Members and persons that may

                                      -16-
<Page>

          hold interests through Agent Members, to take any action which a
          Holder is entitled to take under this Indenture or the Securities.

               (iv)   In the event of the occurrence of any of the events
          specified in clause (i) above, the Company will promptly make
          available to the Trustee a reasonable supply of Certificated
          Securities in definitive, fully registered form, without interest
          coupons.

               (v)    Neither Agent Members nor any other Persons on whose
          behalf Agent Members may act shall have any rights under this
          Indenture with respect to any Global Security registered in the name
          of the Depositary or any nominee thereof, or under any such Global
          Security, and the Depositary or such nominee, as the case may be, may
          be treated by the Company, the Trustee and any agent of the Company or
          the Trustee as the absolute owner and holder of such Global Security
          for all purposes whatsoever. Notwithstanding the foregoing, nothing
          herein shall prevent the Company, the Trustee or any agent of the
          Company or the Trustee from giving effect to any written
          certification, proxy or other authorization furnished by the
          Depositary or such nominee, as the case may be, or impair, as between
          the Depositary, its Agent Members and any other Person on whose behalf
          an Agent Member may act, the operation of customary practices of such
          Persons governing the exercise of the rights of a holder of any
          Security.

     SECTION 2.13.   CUSIP NUMBERS.

     The Company in issuing the Securities may use one or more "CUSIP" numbers
(if then generally in use), and, if so, the Trustee shall use "CUSIP" numbers in
notices of redemption or purchase as a convenience to Holders; PROVIDED THAT any
such notice may state that no representation is made as to the correctness of
such numbers either as printed on the Securities or as contained in any notice
of a redemption or purchase and that reliance may be placed only on the other
identification numbers printed on the Securities, and any such redemption or
purchase shall not be affected by any defect in or omission of such numbers. The
Company will promptly notify the Trustee of any change in the "CUSIP" numbers.

                                    ARTICLE 3
                            REDEMPTION AND PURCHASES

     SECTION 3.1.    RIGHT TO REDEEM; NOTICE TO TRUSTEE.

     (a)  The Securities may be redeemed at the election of the Company, as a
whole or in part from time to time, at any time prior to February 20, 2005 (a
"Provisional Redemption"), at a redemption price equal to $1,000 per $1,000
principal amount of the Securities redeemed (such amount, together with the
Make-Whole Payment described below, the "Provisional Redemption Price"), on the
date of redemption (the "Provisional Redemption Date") if (1) the Closing Price
of the Common Stock has exceeded 150% of the Conversion Price for at least 20
Trading Days within a period of any 30 consecutive Trading Days ending on the
Trading Day prior to the date of mailing of the notice of Provisional Redemption
(the "Notice Date"), and (2) a shelf registration statement covering resales of
the Securities and the Common Stock issuable upon conversion thereof is
effective and available for use and is expected to remain effective and
available for use for the 30 days following the Provisional Redemption Date,
unless registration is no longer required.

     Upon any such Provisional Redemption, the Company shall make an additional
payment (the "Make-Whole Payment") with respect to the Securities called for
redemption to Holders in an amount equal

                                      -17-
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to the total value of the aggregate amount of interest that would have been
payable on the Securities from the last day through which interest was paid on
the Securities (or February 15, 2002, if no interest has been paid) through
February 15, 2005. Payments made in Common Stock will be valued at 97% of the
average of the Closing Prices of the Common Stock for the five consecutive
Trading Days ending on the Trading Day immediately preceding the Provisional
Redemption Date. The Company may make the Make-Whole Payment, at its option,
either in cash or Common Stock (or a combination of cash and Common Stock) and
shall specify the type of consideration for the Make-Whole Payment in the
redemption notice; PROVIDED, HOWEVER, that payment of the Make-Whole Payment may
not be made in shares of Common Stock, in whole or in part, unless (i) the
shares of Common Stock to be issued in payment of the Make-Whole Payment have
been registered or qualified for sale under applicable federal and state
securities laws or may be issued to the Holders pursuant to an applicable
exemption therefrom; (ii) the shares of Common Stock to be issued in payment of
the Make-Whole Payment are listed or quoted as of the Provisional Redemption
Date on a national securities exchange or on the Nasdaq National Market; (iii)
all shares of Common Stock that may be issued in payment of the Make-Whole
Payment shall be newly issued shares, shall upon issue, be duly authorized,
validly issued, fully paid and non-assessable and shall be free from preemptive
or similar rights and free of any lien or adverse claim; and (iv) a shelf
registration covering resale of the shares of Common Stock to be issued in
payment of the Make-Whole Payment is effective and expected to remain effective
and available for use for the 30 days following the Provisional Redemption Date
to the extent that such shares of Common Stock to be issued in payment of the
Make-Whole Payment have not been registered or qualified for sale under
applicable federal or state securities laws. The Company shall make the
Make-Whole Payment on all Securities called for Provisional Redemption,
including those Securities converted into Common Stock between the Notice Date
and the Provisional Redemption Date. The Make-Whole Payment payable with respect
to any such Securities converted into Common Stock between the Notice Date and
the Provisional Redemption Date shall not be reduced to the extent that any
interest has accrued on and is unpaid as of the date on which such Securities
are converted.

     The Company will not issue fractional shares of Common Stock upon payment
of the Make-Whole Payment with Common Stock. In lieu thereof, the Company will
pay an amount in cash for the current market value of the fractional shares. The
current market value of a fractional share shall be determined (calculated to
the nearest 1/1000th of a share) by multiplying the Closing Price (determined as
set forth in Section 4.6(g)) of the Common Stock on the Trading Day immediately
prior to the Provisional Redemption Date by such fractional share and rounding
the product to the nearest whole cent.

     (b)  The Securities may be redeemed at the election of the Company, as a
whole or from time to time in part, at any time on or after February 20, 2005,
at the Redemption Prices specified in paragraph 5 of the form of Security
attached hereto as EXHIBIT A, together with accrued interest up to, but not
including, the Redemption Date; PROVIDED THAT if the Redemption Date falls after
an interest payment record date and on or before an interest payment date, then
the interest shall be payable to the Holders in whose name the Securities are
registered at the close of business on the interest payment record date.

     If the Company elects to redeem Securities pursuant to Section 3.1(a) or
this Section 3.1(b) and paragraph 5 of the Securities, it shall notify the
Trustee at least 40 days prior to the Redemption Date as fixed by the Company
(unless a shorter notice shall be satisfactory to the Trustee) of the Redemption
Date and the principal amount of Securities to be redeemed. If fewer than all of
the Securities are to be redeemed, the record date relating to such redemption
shall be selected by the Company and given to the Trustee, which record date
shall not be less than ten days after the date of notice to the Trustee.

                                      -18-
<Page>

     SECTION 3.2.    SELECTION OF SECURITIES TO BE REDEEMED.

     If less than all of the Securities are to be redeemed, unless the
procedures of the Depositary provide otherwise, the Trustee shall, at least 20
days but not more than 60 days prior to the Redemption Date, select the
Securities to be redeemed. The Trustee shall make the selection from the
Securities outstanding and not previously called for redemption, by lot, or in
its discretion, on a pro rata basis. Securities in denominations of $1,000 may
only be redeemed in whole. The Trustee may select for redemption portions (equal
to $1,000 or any integral multiple thereof) of the principal of Securities that
have denominations larger than $1,000. Provisions of this Indenture that apply
to Securities called for redemption also apply to portions of Securities called
for redemption.

     If any Security selected for partial redemption is converted in part before
termination of the conversion right with respect to the portion of the Security
so selected, the converted portion of such Security shall be deemed to be the
portion selected for redemption. Securities which have been converted during a
selection of Securities to be redeemed shall be treated by the Trustee as
outstanding for the purpose of such selection.

     SECTION 3.3.    NOTICE OF REDEMPTION.

     At least 20 days but not more than 60 days before a Redemption Date, the
Company shall mail or cause to be mailed a notice of redemption to each Holder
of Securities to be redeemed at such Holder's address as it appears on the
Primary Registrar's books.

     The notice shall identify the Securities (including CUSIP numbers) to be
redeemed and shall state:

          (1)  the Redemption Date;

          (2)  the Redemption Price or Provisional Redemption Price, as the case
may be;

          (3)  the then current Conversion Price;

          (4)  the name and address of each Paying Agent and Conversion Agent;

          (5)  that Securities called for redemption must be presented and
surrendered to a Paying Agent to collect the Redemption Price or Provisional
Redemption Price, as the case may be;

          (6)  that Holders who wish to convert Securities must surrender such
Securities for conversion no later than the close of business on the Business
Day immediately preceding the Redemption Date and must satisfy the other
requirements set forth in paragraph 8 of the Securities;

          (7)  that, unless the Company defaults in making the payment of the
Redemption Price or Provisional Redemption Price, as the case may be, interest
on Securities called for redemption shall cease accruing on and after the
Redemption Date and the only remaining right of the Holder shall be to receive
payment of the Redemption Price or the Provisional Redemption Price, as the case
may be, plus (other than in the case of a Provisional Redemption) accrued
interest, if any, upon presentation and surrender to a Paying Agent of the
Securities;

          (8)  if any Security is being redeemed in part, the portion of the
principal amount of such Security to be redeemed and that, after the Redemption
Date, upon presentation and surrender of such

                                      -19-
<Page>

Security, a new Security or Securities in aggregate principal amount equal to
the unredeemed portion thereof will be issued; and

          (9)  in case of a Provisional Redemption, the Company shall specify
the type of consideration for the Make-Whole Payment.

     If any of the Securities to be redeemed is in the form of a Global
Security, then the Company shall modify such notice to the extent necessary to
accord with the procedures of the Depositary applicable to redemptions. At the
Company's written request, which request shall (i) be irrevocable once given and
(ii) set forth all relevant information required by clauses (1) through (8) and,
if applicable, clause (9) of the preceding paragraph, the Trustee shall give the
notice of redemption in the Company's name and at the Company's expense.

     SECTION 3.4.    EFFECT OF NOTICE OF REDEMPTION.

     Once notice of redemption is mailed, Securities called for redemption
become due and payable on the Redemption Date and at the Redemption Price or
Provisional Redemption Price, as the case may be, stated in the notice, together
with (other than in the case of a Provisional Redemption) accrued interest, if
any, except, subject to Section 3.1(a), for Securities that are converted in
accordance with the provisions of Article 4. Upon presentation and surrender to
a Paying Agent, Securities called for redemption shall be paid at the Redemption
Price or Provisional Redemption Price, as the case may be, plus (other than in
the case of a Provisional Redemption) accrued interest up to, but not including,
the Redemption Date; provided if the Redemption Date falls after an interest
payment record date and on or before an interest payment date, then the interest
shall be payable to the Holders in whose names the Securities are registered at
the close of business on such interest payment record date.

     SECTION 3.5.    DEPOSIT OF REDEMPTION PRICE.

     Prior to 11:00 a.m. New York City time, on the Redemption Date, the Company
shall deposit with a Paying Agent (or, if the Company acts as Paying Agent,
shall segregate and hold in trust) an amount of money (in immediately available
funds if deposited on such Redemption Date) or, if applicable, shares of Common
Stock sufficient to pay the Redemption Price or Provisional Redemption Price, as
the case may be, of and (other than in the case of a Provisional Redemption)
accrued interest on all Securities to be redeemed on that date, other than
Securities or portions thereof called for redemption on that date which have
been delivered by the Company to the Trustee for cancellation or have been
converted. The Paying Agent shall, as promptly as practicable, return to the
Company any money or Common Stock not required for that purpose because of the
conversion of Securities pursuant to Article 4 or, if such money or Common Stock
is then held by the Company in trust and is not required for such purpose, it
shall be discharged from the trust.

     SECTION 3.6.    SECURITIES REDEEMED IN PART.

     Upon presentation and surrender of a Security that is redeemed in part, the
Company shall execute and the Trustee shall authenticate and deliver to the
Holder a new Security equal in principal amount to the unredeemed portion of the
Security surrendered.

     SECTION 3.7.    CONVERSION ARRANGEMENT ON CALL FOR REDEMPTION.

     In connection with any redemption of Securities, the Company may arrange
for the purchase and conversion of any Securities called for redemption by an
agreement with one or more investment banks or

                                      -20-
<Page>

other purchasers to purchase such Securities by paying to a Paying Agent (other
than the Company or any of its Affiliates) in trust for the Holders, on or
before 11:00 a.m., New York City time, on the Redemption Date an amount that,
together with any amounts deposited with such Paying Agent by the Company for
the redemption of such Securities, is not less than the Redemption Price or
Provisional Redemption Price, as the case may be, together with (other than in
the case of a Provisional Redemption) interest accrued to, but not including,
the Redemption Date of such Securities. Notwithstanding anything to the contrary
contained in this Article 3, the obligation of the Company to pay the Redemption
Price or Provisional Redemption Price, as the case may be, of such Securities,
including (other than in the case of a Provisional Redemption) all accrued
interest, shall be deemed to be satisfied and discharged to the extent such
amount is so paid by such purchasers; PROVIDED, HOWEVER, that nothing in this
Section 3.7 shall relieve the Company of its obligation to pay the Redemption
Price or Provisional Redemption Price, as the case may be, plus (other than in
the case of a Provisional Redemption) accrued interest to, but excluding, the
relevant Redemption Date on Securities called for redemption. If such an
agreement with one or more investment banks or other purchasers is entered into,
any Securities called for redemption and not surrendered for conversion by the
Holders thereof prior to the relevant Redemption Date may, at the option of the
Company upon written notice to the Trustee, be deemed, to the fullest extent
permitted by law, acquired by such purchasers from such Holders and
(notwithstanding anything to the contrary contained in Article 4) surrendered by
such purchasers for conversion, all as of 11:00 a.m., New York City time, on the
Redemption Date, subject to payment of the above amount as aforesaid. The Paying
Agent shall hold and pay to the Holders whose Securities are selected for
redemption any such amount paid to it for purchase in the same manner as it
would money deposited with it by the Company for the redemption of Securities.
Without the Paying Agent's prior written consent, no arrangement between the
Company and such purchasers for the purchase and conversion of any Securities
shall increase or otherwise affect any of the powers, duties, responsibilities
or obligations of the Paying Agent as set forth in this Indenture, and the
Company agrees to indemnify the Paying Agent from, and hold it harmless against,
any loss, liability or expense arising out of or in connection with any such
arrangement for the purchase and conversion of any Securities between the
Company and such purchasers, including the costs and expenses incurred by the
Paying Agent in the defense of any claim or liability arising out of or in
connection with the exercise or performance of any of its powers, duties,
responsibilities or obligations under this Indenture.

     SECTION 3.8.    PURCHASE OF SECURITIES AT OPTION OF THE HOLDER UPON CHANGE
IN CONTROL.

     (a)  If at any time that Securities remain outstanding there shall occur a
Change in Control, Securities shall be purchased by the Company at the option of
the Holders, as of the date that is 35 Business Days after the occurrence of the
Change in Control (the "Change in Control Purchase Date") at a purchase price
equal to 100% of the principal amount of the Securities, together with accrued
and unpaid interest to, but excluding, the Change in Control Purchase Date (the
"Change in Control Purchase Price"), subject to satisfaction by or on behalf of
any Holder of the requirements set forth in subsection (c) of this Section 3.8.
At the option of the Company, the Change in Control Purchase Price may be paid
in cash or, subject to the fulfillment by the Company of the conditions set
forth in Section 3.8(d), by delivery of shares of Common Stock, or a combination
of cash and Common Stock, having a fair market value equal to the Change in
Control Purchase Price.

                                      -21-
<Page>

     A "Change in Control" shall be deemed to have occurred if any of the
following occurs after the date hereof:

          (1)  any "person" or "group" (as such terms are defined below) is or
becomes the "beneficial owner" (as defined below), directly or indirectly, of
shares of Voting Stock of the Company representing 50% or more of the total
voting power of all outstanding classes of Voting Stock of the Company or has
the power, directly or indirectly, to elect a majority of the members of the
Board of Directors of the Company; or

          (2)  the Company consolidates with, or merges with or into, another
Person or the Company sells, assigns, conveys, transfers, leases or otherwise
disposes of all or substantially all of the assets of the Company, or any Person
consolidates with, or merges with or into, the Company, in any such event other
than pursuant to a transaction in which the Persons that "beneficially owned"
(as defined below), directly or indirectly, shares of Voting Stock of the
Company immediately prior to such transaction "beneficially own" (as defined
below), directly or indirectly, shares of Voting Stock of the Company
representing at least a majority of the total voting power of all outstanding
classes of Voting Stock of the surviving or transferee Person; or

          (3)  the holders of Capital Stock of the Company approve any plan or
proposal for the liquidation or dissolution of the Company (whether or not
otherwise in compliance with the terms hereof).

     For the purpose of the definition of "Change in Control", (i) "person" and
"group" have the meanings given such terms under Section 13(d) and 14(d) of the
Exchange Act or any successor provision to either of the foregoing, and the term
"group" includes any group acting for the purpose of acquiring, holding or
disposing of securities within the meaning of Rule 13d-5(b)(1) under the
Exchange Act (or any successor provision thereto), (ii) a "beneficial owner"
shall be determined in accordance with Rule 13d-3 under the Exchange Act, as in
effect on the date of this Indenture, except that the number of shares of Voting
Stock of the Company shall be deemed to include, in addition to all outstanding
shares of Voting Stock of the Company and Unissued Shares deemed to be held by
the "person" or "group" (as such terms are defined above) or other Person with
respect to which the Change in Control determination is being made, all Unissued
Shares deemed to be held by all other Persons, and (iii) the terms "beneficially
owned" and "beneficially own" shall have meanings correlative to that of
"beneficial owner". The term "Unissued Shares" means shares of Voting Stock not
outstanding that are subject to options, warrants, rights to purchase or
conversion privileges exercisable within 60 days of the date of determination of
a Change in Control.

     Notwithstanding anything to the contrary set forth in this Section 3.8(a),
a Change in Control will not be deemed to have occurred if either:

          (1)  the Closing Price (determined in accordance with Section 4.6(g)
of this Indenture) of the Common Stock for any five Trading Days during the ten
Trading Days immediately preceding the Change in Control is at least equal to
105% of the Conversion Price in effect on such Trading Day; or

          (2)  in the case of a merger or consolidation, all of the
consideration (excluding cash payments for fractional shares and cash payments
pursuant to dissenters' appraisal rights) in the merger or consolidation
constituting the Change in Control consists of common stock traded on a United
States national securities exchange or quoted on the Nasdaq National Market (or
which will be so traded or quoted when issued or exchanged in connection with
such Change in Control) and as a result of such transaction or transactions the
Securities become convertible solely into such common stock.

                                      -22-
<Page>

     (b)  Within 15 Business Days after the occurrence of a Change in Control,
the Company shall mail a written notice of the Change in Control to the Trustee
and to each Holder (and to beneficial owners as required by applicable law). The
notice shall include the form of a Change in Control Purchase Notice (as defined
below) to be completed by the Holder and shall state:

          (1)  the date of such Change in Control and, briefly, the events
causing such Change in Control;

          (2)  the date by which the Change in Control Purchase Notice pursuant
to this Section 3.8 must be given;

          (3)  the Change in Control Purchase Date;

          (4)  the Change in Control Purchase Price, and whether the Change in
Control Purchase Price shall be paid by the Company in cash or by delivery of
shares of Common Stock or a combination thereof;

          (5)  the Holder's right to require the Company to purchase the
Securities;

          (6)  briefly, the conversion rights of the Securities;

          (7)  the name and address of each Paying Agent and Conversion Agent;

          (8)  the Conversion Price and any adjustments thereto;

          (9)  that Securities as to which a Change in Control Purchase Notice
has been given may be converted into Common Stock pursuant to Article 4 of this
Indenture only to the extent that the Change in Control Purchase Notice has been
withdrawn in accordance with the terms of this Indenture;

          (10) the procedures that the Holder must follow to exercise rights
under this Section 3.8;

          (11) the procedures for withdrawing a Change in Control Purchase
Notice, including a form of notice of withdrawal; and

          (12) that the Holder must satisfy the requirements set forth in the
Securities in order to convert the Securities.

     If any of the Securities is in the form of a Global Security, then the
Company shall modify such notice to the extent necessary to accord with the
procedures of the Depositary applicable to the repurchase of Global Securities.

     (c)  A Holder may exercise its rights specified in subsection (a) of this
Section 3.8 upon delivery of a written notice (which shall be in substantially
the form included in EXHIBIT A hereto and which may be delivered by letter,
overnight courier, hand delivery, facsimile transmission or in any other written
form and, in the case of Global Securities, may be delivered electronically or
by other means in accordance with the Depositary's customary procedures) of the
exercise of such rights (a "Change in Control Purchase Notice") to any Paying
Agent at any time prior to the close of business on the Business Day next
preceding the Change in Control Purchase Date. The notice must specify the
Securities, or the portion thereof, for which the purchase right is being
exercised.

                                      -23-
<Page>

     The delivery of such Security to any Paying Agent (together with all
necessary endorsements) at the office of such Paying Agent shall be a condition
to the receipt by the Holder of the Change in Control Purchase Price therefor.
If shares of Common Stock to be delivered pursuant to Section 3.8(a) upon
purchase of a Security are to be registered in a name other than that of the
beneficial owner of such Security, then such Holder must comply with the
applicable provisions of Section 2.6.

     The Company shall purchase from the Holder thereof, pursuant to this
Section 3.8, a portion of a Security if the principal amount of such portion is
$1,000 or an integral multiple of $1,000. Provisions of the Indenture that apply
to the purchase of all of a Security pursuant to Sections 3.8 through 3.13 also
apply to the purchase of such portion of such Security.

     With respect to the issuance and delivery of certificates for shares of
Common Stock on purchase of Securities pursuant to Section 3.8(a), the Company
shall pay any documentary, stamp or similar issue or transfer tax due on the
issue of shares of Common Stock upon such purchase. However, the Holder shall
pay any such tax which is due because the Holder requests the shares to be
issued in a name other than the Holder's name. The Paying Agent may refuse to
deliver the certificate representing the Common Stock being issued in a name
other than the Holder's name until the Paying Agent receives a sum sufficient to
pay any tax which will be due because the shares are to be issued in a name
other than the Holder's name. Nothing herein shall preclude any tax withholding
required by law or regulation.

     Notwithstanding anything herein to the contrary, any Holder delivering to a
Paying Agent the Change in Control Purchase Notice contemplated by this
subsection (c) shall have the right to withdraw such Change in Control Purchase
Notice in whole or in a portion thereof that is a principal amount of $1,000 or
in an integral multiple thereof at any time prior to the close of business on
the Business Day next preceding the Change in Control Purchase Date by delivery
of a written notice of withdrawal to the Paying Agent in accordance with Section
3.9.

     A Paying Agent shall promptly notify the Company of the receipt by it of
any Change in Control Purchase Notice or written withdrawal thereof.

     Anything herein to the contrary notwithstanding, in the case of Global
Securities, any Change in Control Purchase Notice may be delivered or withdrawn
and such Securities may be surrendered or delivered for purchase in accordance
with the Applicable Procedures as in effect from time to time.

     (d)  The Company may elect to pay the Change in Control Purchase Price by
delivery of shares of Common Stock pursuant to Section 3.8(a) if and only if the
following conditions shall have been satisfied:

          (1)  The shares of Common Stock deliverable in payment of the Change
in Control Purchase Price shall have a fair market value as of the Change in
Control Purchase Date of not less than the Change in Control Purchase Price. For
purposes of Section 3.8(a), the fair market value of shares of Common Stock
shall be determined by the Company and shall be equal to 97% of the average of
the Closing Prices of the Common Stock for the five consecutive Trading Days
ending on the Trading Day immediately preceding the Change in Control Purchase
Date;

          (2)  The Change in Control Purchase Price shall be paid only in cash
in the event any shares of Common Stock to be issued upon purchase of Securities
hereunder (i) require registration under any federal securities law before such
shares may be freely transferable without being subject to any transfer
restrictions under the Securities Act upon purchase and if such registration is
not completed or does not

                                      -24-
<Page>

become effective prior to the Change in Control Purchase Date, and/or (ii)
require registration with or approval of any governmental authority under any
state law or any other federal law before such shares may be validly issued or
delivered upon purchase and if such registration is not completed or does not
become effective or such approval is not obtained prior to the Change in Control
Purchase Date;

          (3)  Payment of the Change in Control Purchase Price may not be made
in Common Stock unless such stock is, or shall have been, approved for quotation
on the Nasdaq National Market or listed on a national securities exchange, in
either case, prior to the Change in Control Purchase Date; and

          (4)  All shares of Common Stock which may be issued upon purchase of
Securities will be issued out of the Company's or its Parent's authorized but
unissued Common Stock and, will upon issue, be duly and validly issued and fully
paid and non-assessable and free of any preemptive rights.

If all of the conditions set forth in this Section 3.8(d) are not satisfied in
accordance with the terms thereof, the Change in Control Purchase Price shall be
paid by the Company only in cash.

     The Company will not issue fractional shares of Common Stock upon payment
of the Change in Control Purchase Price with Common Stock. In lieu thereof, the
Company will pay an amount in cash for the current market value of the
fractional shares. The current market value of a fractional share shall be
determined (calculated to the nearest 1/1000th of a share) by multiplying the
Closing Price (determined as set forth in Section 4.6(g)) of the Common Stock on
the Trading Day immediately prior to the Change in Control Purchase Date by such
fractional share and rounding the product to the nearest whole cent. If more
than one Security shall be purchased from the same Holder and the Change in
Control Purchase Price shall be payable in shares of Common Stock, the number of
full shares which shall be issuable upon such purchase shall be computed on the
basis of the aggregate principal amount of the Securities so repurchased.

     Any issuance of shares of Common Stock in respect of the Change in Control
Purchase Price shall be deemed to have been effected immediately prior to the
close of business on the Change in Control Purchase Date and the Person or
Persons in whose name or names any certificate or certificates for shares of
Common Stock shall be issuable upon such purchase shall be deemed to have become
on the Change in Control Purchase Date the holder or holders of record of the
shares represented thereby; PROVIDED, HOWEVER, that any surrender for purchase
on a date when the stock transfer books of the Company shall be closed shall be
effective to constitute the Person or Persons in whose name or names the
certificate or certificates for such shares are to be issued as the record
holder or holders thereof for all purposes at the close of business on the next
succeeding day on which such stock transfer books are open. No payment or
adjustment shall be made for dividends or distributions on shares of Common
Stock issued upon purchase of any Security declared prior to the Change in
Control Purchase Date.

     SECTION 3.9.    EFFECT OF CHANGE IN CONTROL PURCHASE NOTICE.

     Upon receipt by any Paying Agent of the Change in Control Purchase Notice
specified in Section 3.8(c), the Holder of the Security in respect of which such
Change in Control Purchase Notice was given shall (unless such Change in Control
Purchase Notice is withdrawn as specified below) thereafter be entitled to
receive the Change in Control Purchase Price with respect to such Security. Such
Change in Control Purchase Price shall be paid to such Holder promptly following
the later of (a) the Change in Control Purchase Date with respect to such
Security (PROVIDED the conditions in Section 3.8(c) have been satisfied) and (b)
the time of delivery of such Security to a Paying Agent by the Holder thereof in
the manner required by Section 3.8(c). Securities in respect of which a Change
in Control Purchase Notice has been given by the

                                      -25-
<Page>

Holder thereof may not be converted into shares of Common Stock pursuant to
Article 4 on or after the date of the delivery of such Change in Control
Purchase Notice unless such Change in Control Purchase Notice has first been
validly withdrawn.

     A Change in Control Purchase Notice may be withdrawn by means of a written
notice (which may be delivered by mail, overnight courier, hand delivery,
facsimile transmission or in any other written form and, in the case of Global
Securities, may be delivered electronically or by other means in accordance with
the Depositary's customary procedures) of withdrawal delivered by the Holder to
a Paying Agent at any time prior to the close of business on the Business Day
immediately preceding the Change in Control Purchase Date, specifying the
principal amount of the Security or portion thereof (which must be a principal
amount of $1,000 or an integral multiple of $1,000 in excess thereof) with
respect to which such notice of withdrawal is being submitted.

     SECTION 3.10.   DEPOSIT OF CHANGE IN CONTROL PURCHASE PRICE.

     On or before 11:00 a.m., New York City time, on the Change in Control
Purchase Date, the Company shall deposit with the Trustee or with a Paying Agent
(other than the Company or an Affiliate of the Company) an amount of money (in
immediately available funds if deposited on such Change in Control Purchase
Date), shares of Common Stock or a combination thereof sufficient to pay the
aggregate Change in Control Purchase Price of all the Securities or portions
thereof that are to be purchased as of such Change in Control Purchase Date. The
manner in which the deposit required by this Section 3.10 is made by the Company
shall be at the option of the Company; PROVIDED THAT such deposit shall be made
in a manner such that the Trustee or a Paying Agent shall have immediately
available funds, such shares of Common Stock or a combination thereof on the
Change in Control Purchase Date.

     If a Paying Agent holds, in accordance with the terms hereof, money, shares
of Common Stock, or a combination thereof sufficient to pay the Change in
Control Purchase Price of any Security for which a Change in Control Purchase
Notice has been tendered and not withdrawn in accordance with this Indenture,
then on the Change in Control Purchase Date, such Security will cease to be
outstanding and the rights of the Holder in respect thereof shall terminate
(other than the right to receive the Change in Control Purchase Price as
aforesaid). The Company shall publicly announce the principal amount of
Securities purchased as a result of such Change in Control on or as soon as
practicable after the Change in Control Purchase Date.

     SECTION 3.11.   SECURITIES PURCHASED IN PART.

     Any Security that is to be purchased only in part shall be surrendered at
the office of a Paying Agent, and promptly after the Change in Control Purchase
Date, the Company shall execute and the Trustee shall authenticate and deliver
to the Holder of such Security, without service charge, a new Security or
Securities, of such authorized denomination or denominations as may be requested
by such Holder, in aggregate principal amount equal to, and in exchange for, the
portion of the principal amount of the Security so surrendered that is not
purchased.

     SECTION 3.12.   COMPLIANCE WITH SECURITIES LAWS UPON PURCHASE OF
SECURITIES.

     In connection with any offer to purchase or purchase of Securities under
Section 3.8, the Company shall (a) comply with Rule 13e-4 and Rule 14e-1 (or any
successor to either such Rule), if applicable, under

                                      -26-
<Page>

the Exchange Act, (b) file the related Schedule TO (or any successor or similar
schedule, form or report) if required under the Exchange Act, and (c) otherwise
comply with all federal and state securities laws in connection with such offer
to purchase or purchase of Securities, all so as to permit the rights of the
Holders and obligations of the Company under Sections 3.8 through 3.11 to be
exercised in the time and in the manner specified therein.

     SECTION 3.13.   REPAYMENT TO THE COMPANY.

     To the extent that the aggregate amount of cash and/or shares of Common
Stock deposited by the Company pursuant to Section 3.10 exceeds the aggregate
Change in Control Purchase Price together with interest, if any, thereon of the
Securities or portions thereof that the Company is obligated to purchase, then
promptly after the Change in Control Purchase Date the Trustee or a Paying
Agent, as the case may be, shall return any such excess cash and/or excess
Common Stock to the Company.

                                    ARTICLE 4
                                   CONVERSION

     SECTION 4.1.    CONVERSION PRIVILEGE.

     Subject to the further provisions of this Article 4 and paragraph 8 of the
Securities, a Holder of a Security may convert the principal amount of such
Security (or any portion thereof equal to $1,000 or any integral multiple of
$1,000 in excess thereof) into Common Stock at any time prior to the close of
business on the Final Maturity Date, at the Conversion Price then in effect;
PROVIDED, HOWEVER, that, if such Security is called for redemption or submitted
or presented for purchase pursuant to Article 3, such conversion right shall
terminate at the close of business on the Business Day immediately preceding the
Redemption Date or Change in Control Purchase Date, as the case may be, for such
Security or such earlier date as the Holder presents such Security for
redemption or for purchase (unless the Company shall default in making the
applicable redemption payment or Change in Control Purchase Price payment when
due, in which case the conversion right shall terminate at the close of business
on the date such default is cured and such Security is redeemed or purchased, as
the case may be). The number of shares of Common Stock issuable upon conversion
of a Security shall be determined by dividing the principal amount of the
Security or portion thereof surrendered for conversion by the Conversion Price
in effect on the Conversion Date. The initial Conversion Price is set forth in
paragraph 8 of the Securities and is subject to adjustment as provided in this
Article 4.

     Provisions of this Indenture that apply to conversion of all of a Security
also apply to conversion of a portion of a Security.

     A Security in respect of which a Holder has delivered a Change in Control
Purchase Notice pursuant to Section 3.8(c) exercising the option of such Holder
to require the Company to purchase such Security may be converted only if such
Change in Control Purchase Notice is withdrawn by a written notice of withdrawal
delivered to a Paying Agent prior to the close of business on the Business Day
immediately preceding the Change in Control Purchase Date in accordance with
Section 3.9.

     A Holder of Securities is not entitled to any rights of a holder of Common
Stock until such Holder has converted its Securities to Common Stock, and only
to the extent such Securities are deemed to have been converted into Common
Stock pursuant to this Article 4.

                                      -27-
<Page>

     SECTION 4.2.    CONVERSION PROCEDURE.

     To convert a Security, a Holder must (a) complete and manually sign the
conversion notice on the back of the Security and deliver such notice to a
Conversion Agent, (b) surrender the Security to a Conversion Agent, (c) furnish
appropriate endorsements and transfer documents if required by a Registrar or a
Conversion Agent, and (d) pay any transfer or similar tax, if required. The date
on which the Holder satisfies all of those requirements is the "Conversion
Date." As soon as practicable after the Conversion Date, the Company shall
deliver to the Holder through a Conversion Agent a certificate for the number of
whole shares of Common Stock issuable upon the conversion and cash in lieu of
any fractional shares pursuant to Section 4.3. Anything herein to the contrary
notwithstanding, in the case of Global Securities, conversion notices may be
delivered and such Securities may be surrendered for conversion in accordance
with the Applicable Procedures as in effect from time to time.

     The person in whose name the Common Stock certificate is registered shall
be deemed to be a stockholder of record on the Conversion Date; PROVIDED,
HOWEVER, that no surrender of a Security on any date when the stock transfer
books of the Company shall be closed shall be effective to constitute the person
or persons entitled to receive the shares of Common Stock upon such conversion
as the record holder or holders of such shares of Common Stock on such date, but
such surrender shall be effective to constitute the person or persons entitled
to receive such shares of Common Stock as the record holder or holders thereof
for all purposes at the close of business on the next succeeding day on which
such stock transfer books are open; PROVIDED, FURTHER, that such conversion
shall be at the Conversion Price in effect on the Conversion Date as if the
stock transfer books of the Company had not been closed. Upon conversion of a
Security and beginning on the Conversion Date, such person shall no longer be a
Holder of such Security. No payment or adjustment will be made for dividends or
distributions on shares of Common Stock issued upon conversion of a Security.

     Securities so surrendered for conversion (in whole or in part) during the
period from the close of business on any regular interest payment record date to
the opening of business on the next succeeding interest payment date (excluding
Securities or portions thereof called for redemption or presented for purchase
upon a Change in Control on a Redemption Date or Change in Control Purchase
Date, as the case may be, during the period beginning at the close of business
on a regular interest payment record date and ending at the opening of business
on the first Business Day after the next succeeding interest payment date, or if
such interest payment date is not a Business Day, the second such Business Day)
shall also be accompanied by payment in funds acceptable to the Company of an
amount equal to the interest payable on such interest payment date on the
principal amount of such Security then being converted, and such interest shall
be payable to such registered Holder notwithstanding the conversion of such
Security, subject to the provisions of this Indenture relating to the payment of
defaulted interest by the Company. Except as otherwise provided in this Section
4.2, no payment or adjustment will be made for accrued interest on a converted
Security. If the Company defaults in the payment of interest payable on such
interest payment date, the Company shall promptly repay such funds to such
Holder.

     Nothing in this Section shall affect the right of a Holder in whose name
any Security is registered at the close of business on an interest payment
record date to receive the interest payable on such Security on the related
interest payment date in accordance with the terms of this Indenture and the
Securities. If a Holder converts more than one Security at the same time, the
number of shares of Common Stock issuable upon the conversion shall be based on
the aggregate principal amount of Securities converted.

                                      -28-
<Page>

     Upon surrender of a Security that is converted in part, the Company shall
execute, and the Trustee shall authenticate and deliver to the Holder, a new
Security equal in principal amount to the unconverted portion of the Security
surrendered.

     SECTION 4.3.    FRACTIONAL SHARES.

     The Company will not issue fractional shares of Common Stock upon
conversion of Securities. In lieu thereof, the Company will pay an amount in
cash for the current market value of the fractional shares. The current market
value of a fractional share shall be determined (calculated to the nearest
1/1000th of a share) by multiplying the Closing Price (determined as set forth
in Section 4.6(g)) of the Common Stock on the Trading Day immediately prior to
the Conversion Date by such fractional share and rounding the product to the
nearest whole cent.

     SECTION 4.4.    TAXES ON CONVERSION.

     If a Holder converts a Security, the Company shall pay any documentary,
stamp or similar issue or transfer tax due on the issue of shares of Common
Stock upon such conversion. However, the Holder shall pay any such tax which is
due because the Holder requests the shares to be issued in a name other than the
Holder's name. The Conversion Agent may refuse to deliver the certificate
representing the Common Stock being issued in a name other than the Holder's
name until the Conversion Agent receives a sum sufficient to pay any tax which
will be due because the shares are to be issued in a name other than the
Holder's name. Nothing herein shall preclude any tax withholding required by law
or regulation.

     SECTION 4.5.    COMPANY TO PROVIDE STOCK.

     The Company shall, prior to issuance of any Securities hereunder, and from
time to time as may be necessary, reserve, out of its authorized but unissued
Common Stock, a sufficient number of shares of Common Stock to permit the
conversion of all outstanding Securities into shares of Common Stock.

     All shares of Common Stock delivered upon conversion of the Securities
shall be newly issued shares, shall be duly authorized, validly issued, fully
paid and nonassessable and shall be free from preemptive or similar rights and
free of any lien or adverse claim.

     The Company will endeavor promptly to comply with all federal and state
securities laws regulating the offer and delivery of shares of Common Stock upon
conversion of Securities, if any, and will list or cause to have quoted such
shares of Common Stock on each national securities exchange or on the Nasdaq
National Market or other over-the-counter market or such other market on which
the Common Stock is then listed or quoted; PROVIDED, HOWEVER, that if rules of
such automated quotation system or exchange permit the Company to defer the
listing of such Common Stock until the first conversion of the Securities into
Common Stock in accordance with the provisions of this Indenture, the Company
covenants to list such Common Stock issuable upon conversion of the Securities
in accordance with the requirements of such automated quotation system or
exchange at such time. Any Common Stock issued upon conversion of a Security
hereunder which at the time of conversion was a Restricted Security will also be
a Restricted Security.

                                      -29-
<Page>

     SECTION 4.6.    ADJUSTMENT OF CONVERSION PRICE.

     The conversion price as stated in paragraph 8 of the Securities (the
"Conversion Price") shall be adjusted from time to time by the Company as
follows:

     (a)  In case the Company shall (i) pay a dividend on its Common Stock in
shares of Common Stock, (ii) make a distribution on its Common Stock in shares
of Common Stock, (iii) subdivide its outstanding Common Stock into a greater
number of shares, or (iv) combine its outstanding Common Stock into a smaller
number of shares, the Conversion Price in effect immediately prior thereto shall
be adjusted so that the Holder of any Security thereafter surrendered for
conversion shall be entitled to receive that number of shares of Common Stock
which it would have owned had such Security been converted immediately prior to
the happening of such event. An adjustment made pursuant to this subsection (a)
shall become effective immediately after the record date in the case of a
dividend or distribution and shall become effective immediately after the
effective date in the case of subdivision or combination.

     (b)  In case the Company shall issue rights or warrants to all or
substantially all holders of its Common Stock entitling them (for a period
commencing no earlier than the record date described below and expiring not more
than 60 days after such record date) to subscribe for or purchase shares of
Common Stock (or securities convertible into Common Stock) at a price per share
(or having a conversion price per share) less than the Current Market Price per
share of Common Stock (as determined in accordance with subsection (g) of this
Section 4.6) on the record date for the determination of stockholders entitled
to receive such rights or warrants, the Conversion Price in effect immediately
prior thereto shall be adjusted so that the same shall equal the price
determined by multiplying the Conversion Price in effect immediately prior to
such record date by a fraction of which the numerator shall be the number of
shares of Common Stock outstanding on such record date plus the number of shares
which the aggregate offering price of the total number of shares of Common Stock
so offered (or the aggregate conversion price of the convertible securities so
offered, which shall be determined by multiplying the number of shares of Common
Stock issuable upon conversion of such convertible securities by the conversion
price per share of Common Stock pursuant to the terms of such convertible
securities) would purchase at the Current Market Price per share (as defined in
subsection (g) of this Section 4.6) of Common Stock on such record date, and of
which the denominator shall be the number of shares of Common Stock outstanding
on such record date plus the number of additional shares of Common Stock offered
(or into which the convertible securities so offered are convertible). Such
adjustment shall be made successively whenever any such rights or warrants are
issued, and shall become effective immediately after such record date. If at the
end of the period during which such rights or warrants are exercisable not all
rights or warrants shall have been exercised, the adjusted Conversion Price
shall be immediately readjusted to what it would have been based upon the number
of additional shares of Common Stock actually issued (or the number of shares of
Common Stock issuable upon conversion of convertible securities actually
issued).

     (c)  In case the Company shall distribute to all or substantially all
holders of its Common Stock any shares of Capital Stock of the Company (other
than Common Stock), evidences of indebtedness or other non-cash assets
(including securities of any person other than the Company, but excluding (1)
dividends or distributions paid exclusively in cash or (2) dividends or
distributions referred to in subsection (a) of this Section 4.6), or shall
distribute to all or substantially all holders of its Common Stock rights or
warrants to subscribe for or purchase any of its securities (excluding those
rights and warrants referred to in subsection (b) of this Section 4.6 and also
excluding the distribution of rights to all holders of Common Stock pursuant to
a Rights Plan (as defined below) adopted before or after the date of this
Indenture), then in each such case the Conversion Price shall be adjusted so
that the same shall equal the price determined by multiplying the current
Conversion Price by a fraction of which the numerator shall be the Current
Market
                                      -30-
<Page>

Price per share (as defined in subsection (g) of this Section 4.6) of the Common
Stock on the record date mentioned below less the fair market value on such
record date (as determined by the Board of Directors, whose determination shall
be conclusive evidence of such fair market value and which shall be evidenced by
an Officers' Certificate delivered to the Trustee) of the portion of the Capital
Stock, evidences of indebtedness or other non-cash assets so distributed or of
such rights or warrants applicable to one share of Common Stock (determined on
the basis of the number of shares of Common Stock outstanding on the record
date), and of which the denominator shall be the Current Market Price per share
(as defined in subsection (g) of this Section 4.6) of the Common Stock on such
record date. Such adjustment shall be made successively whenever any such
distribution is made and shall become effective immediately after the record
date for the determination of shareholders entitled to receive such
distribution.

     In the event the then fair market value (as so determined) of the portion
of the Capital Stock, evidence of indebtedness or other non-cash assets so
distributed or of such rights or warrants applicable to one share of Common
Stock is equal to or greater than the Current Market Price per share of the
Common Stock on such record date, in lieu of the foregoing adjustment, adequate
provision shall be made so that each holder of a Security shall have the right
to receive upon conversion the amount of Capital Stock, evidences of
indebtedness or other non-cash assets so distributed or of such rights or
warrants such holder would have received had such holder converted each Security
on such record date. In the event that such dividend or distribution is not so
paid or made, the Conversion Price shall again be adjusted to be the Conversion
Price which would then be in effect if such dividend or distribution had not
been declared. If the Board of Directors determines the fair market value of any
distribution for purposes of this Section 4.6(c) by reference to the actual or
when-issued trading market for any securities, it must in doing so consider the
prices in such market over the same period used in computing the Current Market
Price of the Common Stock.

     With respect to rights to purchase preferred shares (the "Existing Rights")
issued pursuant to the Rights Agreement, dated as of February 13, 1998, between
the Company and Chase Mellon Shareholder Services, L.L.C., as Rights Agent (the
"Existing Rights Plan"), and any rights or warrants (the "Future Rights" and,
together with the Existing Rights, the "Rights") that may be issued or
distributed pursuant to any similar rights plan (a "Future Rights Plan") that
the Company implements after the date of this Indenture (each of the Existing
Rights Plan and any Future Rights Plan are referred to as a "Rights Plan"), upon
conversion of the Securities into Common Stock, to the extent that such Rights
Plan is in effect upon such conversion, the holders of Securities will receive,
in addition to the Common Stock, the Rights described therein (whether or not
the Rights have separated from the Common Stock at the time of conversion),
subject to the limitations set forth in any such Rights Plan. Any distribution
of Rights pursuant to a Rights Plan complying with the requirements set forth in
the immediately preceding sentence of this paragraph shall not constitute a
distribution of rights or warrants pursuant to this Section 4.6(c).

     Rights or warrants (other than Rights issued pursuant to a Rights Plan)
distributed by the Company to all holders of Common Stock entitling the holders
thereof to subscribe for or purchase shares of the Company's Capital Stock
(either initially or under certain circumstances), which rights or warrants,
until the occurrence of a specified event or events ("Trigger Event"): (i) are
deemed to be transferred with such shares of Common Stock; (ii) are not
exercisable; and (iii) are also issued in respect of future issuances of Common
Stock, shall be deemed not to have been distributed for purposes of this Section
4.6 (and no adjustment to the Conversion Price under this Section 4.6 will be
required) until the occurrence of the earliest Trigger Event, whereupon such
rights and warrants shall be deemed to have been distributed and an appropriate
adjustment (if any is required) to the Conversion Price shall be made under this
Section 4.6(c). If any such right or warrant, including any such existing rights
or warrants distributed prior to the date of this Indenture, are subject to
events, upon the occurrence of which such rights or warrants become exercisable
to purchase

                                      -31-
<Page>

different securities, evidences of indebtedness or other assets, then the date
of the occurrence of any and each such event shall be deemed to be the date of
distribution and record date with respect to new rights or warrants with such
rights (and a termination or expiration of the existing rights or warrants
without exercise by any of the holders thereof). In addition, in the event of
any distribution (or deemed distribution) of rights or warrants, or any Trigger
Event or other event (of the type described in the preceding sentence) with
respect thereto that was counted for purposes of calculating a distribution
amount for which an adjustment to the Conversion Price under this Section 4.6
was made, (1) in the case of any such rights or warrants which shall all have
been redeemed or repurchased without exercise by any holders thereof, the
Conversion Price shall be readjusted upon such final redemption or repurchase to
give effect to such distribution or Trigger Event, as the case may be, as though
it were a cash distribution, equal to the per share redemption or repurchase
price received by a holder or holders of Common Stock with respect to such
rights or warrants (assuming such holder had retained such rights or warrants),
made to all holders of Common Stock as of the date of such redemption or
repurchase, and (2) in the case of such rights or warrants which shall have
expired or been terminated without exercise by any holders thereof, the
Conversion Price shall be readjusted as if such rights and warrants had not been
issued.

     (d)  In case the Company shall, by dividend or otherwise, at any time
distribute (a "Triggering Distribution") to all or substantially all holders of
its Common Stock cash in an aggregate amount that, together with the aggregate
amount of (A) any cash and the fair market value (as determined by the Board of
Directors, whose determination shall be conclusive evidence thereof and which
shall be evidenced by an Officers' Certificate delivered to the Trustee) of any
other consideration payable in respect of any tender offer (within the meaning
of the United States federal securities law) by the Company or a Subsidiary of
the Company for Common Stock consummated within the 12 months preceding the date
of payment of the Triggering Distribution and in respect of which no Conversion
Price adjustment pursuant to this Section 4.6 has been made and (B) all other
cash distributions to all or substantially all holders of its Common Stock made
within the 12 months preceding the date of payment of the Triggering
Distribution and in respect of which no Conversion Price adjustment pursuant to
this Section 4.6 has been made, exceeds an amount equal to 10% of the product of
the Current Market Price per share of Common Stock (as determined in accordance
with subsection (g) of this Section 4.6) on the Business Day (the "Determination
Date") immediately preceding the day on which such Triggering Distribution is
declared by the Company multiplied by the number of shares of Common Stock
outstanding on the Determination Date (excluding shares held in the treasury of
the Company), the Conversion Price shall be reduced so that the same shall equal
the price determined by multiplying such Conversion Price in effect immediately
prior to the Determination Date by a fraction of which the numerator shall be
the Current Market Price per share of the Common Stock (as determined in
accordance with subsection (g) of this Section 4.6) on the Determination Date
less the sum of the aggregate amount of cash and the aggregate fair market value
(determined as aforesaid in this Section 4.6(d)) of any such other consideration
so distributed, paid or payable within such 12 months (including, without
limitation, the Triggering Distribution) applicable to one share of Common Stock
(determined on the basis of the number of shares of Common Stock outstanding on
the Determination Date) and the denominator shall be such Current Market Price
per share of the Common Stock (as determined in accordance with subsection (g)
of this Section 4.6) on the Determination Date, such reduction to become
effective immediately prior to the opening of business on the day following the
date on which the Triggering Distribution is paid.

     (e)  In case any tender offer made by the Company or any of its
Subsidiaries for Common Stock shall expire and such tender offer (as amended
upon the expiration thereof) shall involve the payment of aggregate
consideration in an amount (determined as the sum of the aggregate amount of
cash consideration and the aggregate fair market value (as determined by the
Board of Directors, whose determination shall be

                                      -32-
<Page>

conclusive evidence thereof and which shall be evidenced by an Officers'
Certificate delivered to the Trustee thereof) of any other consideration) that,
together with the aggregate amount of (A) any cash and the fair market value (as
determined by the Board of Directors, whose determination shall be conclusive
evidence thereof and which shall be evidenced by an Officers' Certificate
delivered to the Trustee) of any other consideration payable in respect of any
other tender offers by the Company or any Subsidiary of the Company for Common
Stock consummated within the 12 months preceding the Expiration Date (as defined
below) and in respect of which no Conversion Price adjustment pursuant to this
Section 4.6 has been made and (B) all cash distributions to all or substantially
all holders of its Common Stock made within the 12 months preceding the
Expiration Date and in respect of which no Conversion Price adjustment pursuant
to this Section 4.6 has been made, exceeds an amount equal to 10% of the product
of the Current Market Price per share of Common Stock (as determined in
accordance with subsection (g) of this Section 4.6) as of the last date (the
"Expiration Date") tenders could have been made pursuant to such tender offer
(as it may be amended) (the last time at which such tenders could have been made
on the Expiration Date is hereinafter sometimes called the "Expiration Time")
multiplied by the number of shares of Common Stock outstanding (including
tendered shares but excluding any shares held in the treasury of the Company) at
the Expiration Time, then, immediately prior to the opening of business on the
day after the Expiration Date, the Conversion Price shall be reduced so that the
same shall equal the price determined by multiplying the Conversion Price in
effect immediately prior to the close of business on the Expiration Date by a
fraction of which the numerator shall be the product of the number of shares of
Common Stock outstanding (including tendered shares but excluding any shares
held in the treasury of the Company) at the Expiration Time multiplied by the
Current Market Price per share of the Common Stock (as determined in accordance
with subsection (g) of this Section 4.6) on the Trading Day next succeeding the
Expiration Date and the denominator shall be the sum of (x) the aggregate
consideration (determined as aforesaid) payable to stockholders based on the
acceptance (up to any maximum specified in the terms of the tender offer) of all
shares validly tendered and not withdrawn as of the Expiration Time (the shares
deemed so accepted, up to any such maximum, being referred to as the "Purchased
Shares") and (y) the product of the number of shares of Common Stock outstanding
(less any Purchased Shares and excluding any shares held in the treasury of the
Company) at the Expiration Time and the Current Market Price per share of Common
Stock (as determined in accordance with subsection (g) of this Section 4.6) on
the Trading Day next succeeding the Expiration Date, such reduction to become
effective immediately prior to the opening of business on the day following the
Expiration Date. In the event that the Company is obligated to purchase shares
pursuant to any such tender offer, but the Company is permanently prevented by
applicable law from effecting any or all such purchases or any or all such
purchases are rescinded, the Conversion Price shall again be adjusted to be the
Conversion Price which would have been in effect based upon the number of shares
actually purchased. If the application of this Section 4.6(e) to any tender
offer would result in an increase in the Conversion Price, no adjustment shall
be made for such tender offer under this Section 4.6(e).

     (f)  For purposes of Sections 4.6(d) and 4.6(e), the term "tender offer"
shall mean and include both tender offers and exchange offers, all references to
"purchases" of shares in tender offers (and all similar references) shall mean
and include both the purchase of shares in tender offers and the acquisition of
shares pursuant to exchange offers, and all references to "tendered shares" (and
all similar references) shall mean and include shares tendered in both tender
offers and exchange offers.

     (g)  For the purpose of any computation under subsections (b), (c) (d) and
(e) of this Section 4.6, the current market price (the "Current Market Price")
per share of Common Stock on any date shall be deemed to be the average of the
daily closing prices for the 30 consecutive Trading Days commencing 45 Trading
Days before (i) the Determination Date or the Expiration Date, as the case may
be, with respect to distributions or tender offers under subsections (c), (d) or
(e) of this Section 4.6 or (ii) the record date with

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respect to distributions, issuances or other events requiring such computation
under subsections (b), (c), (d) and (e) of this Section 4.6. The closing price
(the "Closing Price") per share of Common Stock for each day shall be the last
reported sales price or, in case no such reported sale take place on such date,
the average of the reported closing bid and asked prices in either case on the
Nasdaq National Market (the "NNM") or, if the Common Stock is not listed or
admitted to trading on the NNM, on the principal national securities exchange on
which the Common Stock is listed or admitted to trading or, if not listed or
admitted to trading on the NNM or any national securities exchange, the last
reported sales price of the Common Stock as quoted on NASDAQ or, in case no
reported sales take place, the average of the closing bid and asked prices as
quoted on NASDAQ or any comparable system or, if the Common Stock is not quoted
on NASDAQ or any comparable system, the closing sales price or, in case no
reported sale takes place, the average of the closing bid and asked prices, as
furnished by any two members of the National Association of Securities Dealers,
Inc. selected from time to time by the Company for that purpose. If no such
prices are available, the Current Market Price per share shall be the fair value
of a share of Common Stock as determined by the Board of Directors (which shall
be evidenced by an Officers' Certificate delivered to the Trustee).

     (h)  In any case in which this Section 4.6 shall require that an adjustment
be made following a record date or a Determination Date or Expiration Date, as
the case may be, established for purposes of this Section 4.6, the Company may
elect to defer (but only until five Business Days following the filing by the
Company with the Trustee of the certificate described in Section 4.9) issuing to
the Holder of any Security converted after such record date or Determination
Date or Expiration Date the shares of Common Stock and other Capital Stock of
the Company issuable upon such conversion over and above the shares of Common
Stock and other Capital Stock of the Company issuable upon such conversion only
on the basis of the Conversion Price prior to adjustment; and, in lieu of the
shares the issuance of which is so deferred, the Company shall issue or cause
its transfer agents to issue due bills or other appropriate evidence prepared by
the Company of the right to receive such shares. If any distribution in respect
of which an adjustment to the Conversion Price is required to be made as of the
record date or Determination Date or Expiration Date therefor is not thereafter
made or paid by the Company for any reason, the Conversion Price shall be
readjusted to the Conversion Price which would then be in effect if such record
date had not been fixed or such effective date or Determination Date or
Expiration Date had not occurred.

     SECTION 4.7.    NO ADJUSTMENT.

     No adjustment in the Conversion Price shall be required unless the
adjustment would require an increase or decrease of at least 1% in the
Conversion Price as last adjusted; PROVIDED, HOWEVER, that any adjustments which
by reason of this Section 4.7 are not required to be made shall be carried
forward and taken into account in any subsequent adjustment. All calculations
under this Article 4 shall be made to the nearest cent or to the nearest
one-hundredth of a share, as the case may be.

     No adjustment need be made for issuances of Common Stock pursuant to a
Company plan for reinvestment of dividends or interest or for a change in the
par value or a change to no par value of the Common Stock.

     To the extent that the Securities become convertible into the right to
receive cash, no adjustment need be made thereafter as to the cash. Interest
will not accrue on the cash.

                                      -34-
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     SECTION 4.8.    ADJUSTMENT FOR TAX PURPOSES.

     The Company shall be entitled to make such reductions in the Conversion
Price, in addition to those required by Section 4.6, as it in its discretion
shall determine to be advisable in order that any stock dividends, subdivisions
of shares, distributions of rights to purchase stock or securities or
distributions of securities convertible into or exchangeable for stock (or any
event treated as such for federal income tax purposes) hereafter made by the
Company to its stockholders shall not be taxable.

     SECTION 4.9.    NOTICE OF ADJUSTMENT.

     Whenever the Conversion Price or conversion privilege is adjusted, the
Company shall promptly mail to Securityholders a notice of the adjustment and
file with the Trustee an Officers' Certificate briefly stating the facts
requiring the adjustment and the manner of computing it. Unless and until the
Trustee shall receive an Officers' Certificate setting forth an adjustment of
the Conversion Price, the Trustee may assume without inquiry that the Conversion
Price has not been adjusted and that the last Conversion Price of which it has
knowledge remains in effect.

     SECTION 4.10.   NOTICE OF CERTAIN TRANSACTIONS.

     In the event that:

          (1)  the Company takes any action which would require an adjustment in
the Conversion Price;

          (2)  the Company consolidates or merges with, or transfers all or
substantially all of its property and assets to, another corporation and
shareholders of the Company must approve the transaction; or

          (3)  there is a dissolution or liquidation of the Company,

the Company shall mail to Holders and file with the Trustee a notice stating the
proposed record or effective date, as the case may be. The Company shall mail
the notice at least ten days before such date. Failure to mail such notice or
any defect therein shall not affect the validity of any transaction referred to
in clause (1), (2) or (3) of this Section 4.10.

     SECTION 4.11.   EFFECT OF RECLASSIFICATION, CONSOLIDATION, MERGER OR SALE
ON CONVERSION PRIVILEGE.

     If any of the following shall occur, namely: (a) any reclassification or
change of shares of Common Stock issuable upon conversion of the Securities
(other than a change in par value, or from par value to no par value, or from no
par value to par value, or as a result of a subdivision or combination, or any
other change for which an adjustment is provided in Section 4.6); (b) any
consolidation or merger or combination to which the Company is a party other
than a merger in which the Company is the continuing corporation and which does
not result in any reclassification of, or change (other than in par value, or
from par value to no par value, or from no par value to par value, or as a
result of a subdivision or combination) in, the outstanding shares of Common
Stock; or (c) any sale or conveyance as an entirety or substantially as an
entirety of the property and assets of the Company, directly or indirectly, to
any person, then the Company, or such successor, purchasing or transferee
corporation, as the case may be, shall, as a condition precedent to such
reclassification, change, combination, consolidation, merger, sale or
conveyance, execute and deliver to the Trustee a supplemental

                                      -35-
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indenture providing that the Holder of each Security then outstanding shall have
the right to convert such Security into the kind and amount of shares of stock
and other securities and property (including cash) receivable upon such
reclassification, change, combination, consolidation, merger, sale or conveyance
by a holder of the number of shares of Common Stock deliverable upon conversion
of such Security immediately prior to such reclassification, change,
combination, consolidation, merger, sale or conveyance. Such supplemental
indenture shall provide for adjustments of the Conversion Price which shall be
as nearly equivalent as may be practicable to the adjustments of the Conversion
Price provided for in this Article 4. If, in the case of any such consolidation,
merger, combination, sale or conveyance, the stock or other securities and
property (including cash) receivable thereupon by a holder of Common Stock
include shares of stock or other securities and property of a person other than
the successor, purchasing or transferee corporation, as the case may be, in such
consolidation, merger, combination, sale or conveyance, then such supplemental
indenture shall also be executed by such other person and shall contain such
additional provisions to protect the interests of the Holders of the Securities
as the Board of Directors shall reasonably consider necessary by reason of the
foregoing. The provisions of this Section 4.11 shall similarly apply to
successive reclassifications, changes, combinations, consolidations, mergers,
sales or conveyances.

     In the event the Company shall execute a supplemental indenture pursuant to
this Section 4.11, the Company shall promptly file with the Trustee (x) an
Officers' Certificate briefly stating the reasons therefor, the kind or amount
of shares of stock or other securities or property (including cash) receivable
by Holders of the Securities upon the conversion of their Securities after any
such reclassification, change, combination, consolidation, merger, sale or
conveyance, any adjustment to be made with respect thereto and that all
conditions precedent have been complied with and (y) an Opinion of Counsel that
all conditions precedent have been complied with, and shall promptly mail notice
thereof to all Holders.

     SECTION 4.12.   TRUSTEE'S DISCLAIMER.

     The Trustee shall have no duty to determine when an adjustment under this
Article 4 should be made, how it should be made or what such adjustment should
be, but may accept as conclusive evidence of that fact or the correctness of any
such adjustment, and shall be protected in relying upon, an Officers'
Certificate including the Officers' Certificate with respect thereto which the
Company is obligated to file with the Trustee pursuant to Section 4.9. The
Trustee makes no representation as to the validity or value of any securities or
assets issued upon conversion of Securities, and the Trustee shall not be
responsible for the Company's failure to comply with any provisions of this
Article 4.

     The Trustee shall not be under any responsibility to determine the
correctness of any provisions contained in any supplemental indenture executed
pursuant to Section 4.11, but may accept as conclusive evidence of the
correctness thereof, and shall be fully protected in relying upon, the Officers'
Certificate with respect thereto which the Company is obligated to file with the
Trustee pursuant to Section 4.11.

     SECTION 4.13.   VOLUNTARY REDUCTION.

     The Company from time to time may reduce the Conversion Price by any amount
for any period of time if the period is at least 20 days and if the reduction is
irrevocable during the period if our Board of Directors determines that such
reduction would be in the best interest of the Company, or would avoid or
diminish income tax to holders of shares of our Common Stock in connection with
a dividend or distribution of stock or similar event, and the Company provides
15 days prior notice of any reduction in the Conversion Price; PROVIDED,
HOWEVER, that in no event may the Company reduce the Conversion Price to be less
than the par value of a share of Common Stock.

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                                    ARTICLE 5
                                  SUBORDINATION

     SECTION 5.1.    AGREEMENT OF SUBORDINATION.

     The Company covenants and agrees, and each Holder of Securities issued
hereunder by its acceptance thereof likewise covenants and agrees, that all
Securities shall be issued subject to the provisions of this Article 5; and each
Person holding any Security, whether upon original issue or upon transfer,
assignment or exchange thereof, accepts and agrees to be bound by such
provisions.

     The payment of the principal of, premium, if any, and interest (including
Additional Interest, if any) on all Securities (including, but not limited to,
the Redemption Price or Provisional Redemption Price, as the case may be, with
respect to the Securities called for redemption or the Change in Control
Purchase Price with respect to the Securities subject to purchase in accordance
with Article 3 as provided in this Indenture) issued hereunder shall, to the
extent and in the manner hereinafter set forth, be subordinated and subject in
right of payment to the prior payment in full in cash or payment satisfactory to
the holders of Senior Indebtedness of all Senior Indebtedness, whether
outstanding at the date of this Indenture or thereafter incurred.

     No provision of this Article 5 shall prevent the occurrence of any default
or Event of Default hereunder.

     SECTION 5.2.    PAYMENTS TO HOLDERS.

     No payment shall be made with respect to the principal of, or premium, if
any, or interest (including Additional Interest, if any) on the Securities
(including, but not limited to, the Redemption Price or Provisional Redemption
Price, as the case may be, with respect to the Securities called for redemption
or the Change in Control Purchase Price with respect to the Securities subject
to purchase in accordance with Article 3 as provided in this Indenture), except
payments and distributions made by the Trustee as permitted by the first or
second paragraph of Section 5.5, if:

     (i)  a default in the payment of principal, premium, interest, rent or
other obligations due on any Senior Indebtedness occurs and is continuing (or,
in the case of Senior Indebtedness for which there is a period of grace, in the
event of such a default that continues beyond the period of grace, if any,
specified in the instrument or lease evidencing such Senior Indebtedness),
unless and until such default shall have been cured or waived or shall have
ceased to exist; or

     (ii) a default, other than a payment default, on any Designated Senior
Indebtedness occurs and is continuing that then permits holders of such
Designated Senior Indebtedness to accelerate its maturity and the Trustee
receives a notice of the default (a "Payment Blockage Notice") from the Company,
a Representative or holder of Designated Senior Indebtedness or the Company.

     Subject to the provisions of Section 5.5, if the Trustee receives any
Payment Blockage Notice pursuant to clause (ii) above, no subsequent Payment
Blockage Notice shall be effective for purposes of this Section unless and until
at least 365 days shall have elapsed since the initial effectiveness of the
immediately prior Payment Blockage Notice and all scheduled payments on the
Securities that are due and payable have been paid in full in cash. No
nonpayment default on Designated Senior Indebtedness that existed or was
continuing on the date of delivery of any Payment Blockage Notice to the Trustee
(unless such default was

                                      -37-
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waived, cured or otherwise ceased to exist and thereafter subsequently
reoccurred) shall be, or be made, the basis for a subsequent Payment Blockage
Notice.

     The Company may and shall resume payments on and distributions in respect
of the Securities upon the earlier of:

     (a)  in the case of a default referred to in clause (i) above, the date
upon which the default is cured or waived or ceases to exist, or

     (b)  in the case of a default referred to in clause (ii) above, the earlier
of the date on which such default is cured or waived or ceases to exist or 179
days pass after the date on which the applicable Payment Blockage Notice is
received, if the maturity of such Designated Senior Indebtedness has not been
accelerated unless this Article 5 otherwise prohibits the payment or
distribution at the time of such payment or distribution.

     Upon any payment by the Company, or distribution of assets of the Company
of any kind or character, whether in cash, property or securities, to creditors
upon any dissolution or winding-up or liquidation or reorganization of the
Company (whether voluntary or involuntary) or in bankruptcy, insolvency,
receivership or similar proceedings, all amounts due or to become due upon all
Senior Indebtedness shall first be paid in full in cash, or other payments
satisfactory to the holders of Senior Indebtedness before any payment is made on
account of the principal of, premium, if any, or interest (including Additional
Interest, if any) on the Securities (except payments made pursuant to Article 10
from monies deposited with the Trustee pursuant thereto prior to commencement of
proceedings for such dissolution, winding-up, liquidation or reorganization);
and upon any such dissolution or winding-up or liquidation or reorganization of
the Company or bankruptcy, insolvency, receivership or other proceeding, any
payment by the Company, or distribution of assets of the Company of any kind or
character, whether in cash, property or securities, to which the Holders of the
Securities or the Trustee would be entitled, except for the provision of this
Article 5, shall (except as aforesaid) be paid by the Company or by any
receiver, trustee in bankruptcy, liquidating trustee, agent or other Person
making such payment or distribution, or by the Holders of the Securities or by
the Trustee under this Indenture if received by them or it, directly to the
holders of Senior Indebtedness (pro rata to such holders on the basis of the
respective amounts of Senior Indebtedness held by such holders, or as otherwise
required by law or a court order) or their Representative or Representatives, or
to the trustee or trustees under any indenture pursuant to which any instruments
evidencing any Senior Indebtedness may have been issued, as their respective
interests may appear, to the extent necessary to pay all Senior Indebtedness in
full in cash, or other payment satisfactory to the holders of Senior
Indebtedness, after giving effect to any concurrent payment or distribution to
or for the holders of Senior Indebtedness, before any payment or distribution is
made to the Holders of the Securities or to the Trustee.

     For purposes of this Article 5, the words, "cash, property or securities"
shall not be deemed to include shares of stock of the Company as reorganized or
readjusted, or securities of the Company or any other corporation provided for
by a plan of reorganization or readjustment, the payment of which is
subordinated at least to the extent provided in this Article 5 with respect to
the Securities to the payment of all Senior Indebtedness which may at the time
be outstanding; PROVIDED THAT (i) the Senior Indebtedness is assumed by the new
corporation, if any, resulting from any reorganization or readjustment, and (ii)
the rights of the holders of Senior Indebtedness (other than leases which are
not assumed by the Company or the new corporation, as the case may be) are not,
without the consent of such holders, altered by such reorganization or
readjustment. The consolidation of the Company with, or the merger of the
Company into, another

                                      -38-
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corporation or the liquidation or dissolution of the Company following the
conveyance, transfer or lease of its property as an entirety, or substantially
as an entirety, to another corporation upon the terms and conditions provided
for in Article 7 shall not be deemed a dissolution, winding-up, liquidation or
reorganization for the purposes of this Section 5.2 if such other corporation
shall, as a part of such consolidation, merger, conveyance, transfer or lease,
comply with the conditions stated in Article 7.

     In the event of the acceleration of the Securities because of an Event of
Default, no payment or distribution shall be made to the Trustee or any Holder
of Securities in respect of the principal of, premium, if any, or interest
(including Additional Interest, if any) on the Securities by the Company
(including, but not limited to, the Redemption Price or Provisional Redemption
Price, as the case may be, with respect to the Securities called for redemption
or the Change in Control Purchase Price with respect to the Securities subject
to purchase in accordance with Article 3 as provided in this Indenture), except
payments and distributions made by the Trustee as permitted by Section 5.5,
until all Senior Indebtedness has been paid in full in cash or other payment
satisfactory to the holders of Senior Indebtedness or such acceleration is
rescinded in accordance with the terms of this Indenture. If payment of the
Securities is accelerated because of an Event of Default, the Company shall
promptly notify holders of Senior Indebtedness of such acceleration.

     In the event that, notwithstanding the foregoing provisions, any payment or
distribution of assets of the Company of any kind or character, whether in cash,
property or securities (including, without limitation, by way of setoff or
otherwise), prohibited by the foregoing, shall be received by the Trustee or the
Holders of the Securities before all Senior Indebtedness is paid in full, in
cash or other payment satisfactory to the holders of Senior Indebtedness, or
provision is made for such payment thereof in accordance with its terms in cash
or other payment satisfactory to the holders of Senior Indebtedness, such
payment or distribution shall be held in trust for the benefit of and shall be
paid over or delivered to the holders of Senior Indebtedness or their
Representative or Representatives, or to the trustee or trustees under any
indenture pursuant to which any instruments evidencing any Senior Indebtedness
may have been issued, as their respective interests may appear, as calculated by
the Company, for application to the payment of all Senior Indebtedness remaining
unpaid to the extent necessary to pay all Senior Indebtedness in full, in cash
or other payment satisfactory to the holders of Senior Indebtedness, after
giving effect to any concurrent payment or distribution to or for the holders of
such Senior Indebtedness.

     Nothing in this Section 5.2 shall apply to claims of, or payments to, the
Trustee under or pursuant to Section 9.7. This Section 5.2 shall be subject to
the further provisions of Section 5.5.

     SECTION 5.3.    SUBROGATION OF SECURITIES.

     Subject to the payment in full, in cash or other payment satisfactory to
the holders of Senior Indebtedness, of all Senior Indebtedness, the rights of
the Holders of the Securities shall be subrogated to the extent of the payments
or distributions made to the holders of such Senior Indebtedness pursuant to the
provisions of this Article 5 (equally and ratably with the holders of all
indebtedness of the Company which by its express terms is subordinated to other
indebtedness of the Company to substantially the same extent as the Securities
are subordinated and is entitled to like rights of subrogation) to the rights of
the holders of Senior Indebtedness to receive payments or distributions of cash,
property or securities of the Company applicable to the Senior Indebtedness
until the principal, premium, if any, and interest (including Additional
Interest, if any) on the Securities shall be paid in full in cash or other
payment satisfactory to the holders of Senior Indebtedness; and, for the
purposes of such subrogation, no payments or distributions to the holders of the
Senior Indebtedness of any cash, property or securities to which the Holders of
the Securities or the Trustee would be entitled except for the provisions

                                      -39-
<Page>

of this Article 5, and no payment over pursuant to the provisions of this
Article 5, to or for the benefit of the holders of Senior Indebtedness by
Holders of the Securities or the Trustee, shall, as between the Company, its
creditors other than holders of Senior Indebtedness, and the Holders of the
Securities, be deemed to be a payment by the Company to or on account of the
Senior Indebtedness; and no payments or distributions of cash, property or
securities to or for the benefit of the Holders of the Securities pursuant to
the subrogation provisions of this Article 5, which would otherwise have been
paid to the holders of Senior Indebtedness shall be deemed to be a payment by
the Company to or for the account of the Securities. It is understood that the
provisions of this Article 5 are and are intended solely for the purposes of
defining the relative rights of the Holders of the Securities, on the one hand,
and the holders of the Senior Indebtedness, on the other hand.

     Nothing contained in this Article 5 or elsewhere in this Indenture or in
the Securities is intended to or shall impair, as among the Company, its
creditors other than the holders of Senior Indebtedness, and the Holders of the
Securities, the obligation of the Company, which is absolute and unconditional,
to pay to the Holders of the Securities the principal of (and premium, if any)
and interest on the Securities as and when the same shall become due and payable
in accordance with their terms, or is intended to or shall affect the relative
rights of the Holders of the Securities and creditors of the Company other than
the holders of the Senior Indebtedness, nor shall anything herein or therein
prevent the Trustee or the Holder of any Security from exercising all remedies
otherwise permitted by applicable law upon default under this Indenture, subject
to the rights, if any, under this Article 5 of the holders of Senior
Indebtedness in respect of cash, property or securities of the Company received
upon the exercise of any such remedy.

     Upon any payment or distribution of assets of the Company referred to in
this Article 5, the Trustee, subject to the provisions of Section 9.1, and the
Holders of the Securities shall be entitled to rely upon any order or decree
made by any court of competent jurisdiction in which such bankruptcy,
dissolution, winding-up, liquidation or reorganization proceedings are pending,
or a certificate of the receiver, trustee in bankruptcy, liquidating trustee,
agent or other person making such payment or distribution, delivered to the
Trustee or to the Holders of the Securities, for the purpose of ascertaining the
persons entitled to participate in such distribution, the holders of the Senior
Indebtedness and other indebtedness of the Company, the amount thereof or
payable thereon and all other facts pertinent thereto or to this Article 5.

     SECTION 5.4.    AUTHORIZATION TO EFFECT SUBORDINATION.

     Each Holder of a Security by the Holder's acceptance thereof authorizes and
directs the Trustee on the Holder's behalf to take such action as may be
necessary or appropriate to effectuate the subordination as provided in this
Article 5 and appoints the Trustee to act as the Holder's attorney-in-fact for
any and all such purposes. If the Trustee does not file a proper proof of claim
or proof of debt in the form required in any proceeding referred to in Section
5.3 hereof at least 30 days before the expiration of the time to file such
claim, the holders of any Senior Indebtedness or their Representatives are
hereby authorized to file an appropriate claim for and on behalf of the Holders
of the Securities.

     SECTION 5.5.    NOTICE TO TRUSTEE.

     The Company shall give prompt written notice in the form of an Officers'
Certificate to a Trust Officer of the Trustee and to any Paying Agent of any
fact known to the Company which would prohibit the making of any payment of
monies to or by the Trustee or any Paying Agent in respect of the Securities
pursuant to the provisions of this Article 5. Notwithstanding the provisions of
this Article 5 or any other provision of this Indenture, the Trustee shall not
be charged with knowledge of the existence of any facts which would prohibit the
making of any payment of monies to or by the Trustee in respect of the
Securities

                                      -40-
<Page>

pursuant to the provisions of this Article 5, unless and until a Trust Officer
of the Trustee shall have received written notice thereof at the Corporate Trust
Office from the Company (in the form of an Officers' Certificate) or a
Representative or a holder or holders of Senior Indebtedness or from any trustee
thereof; and before the receipt of any such written notice, the Trustee, subject
to the provisions of Section 9.1, shall be entitled in all respects to assume
that no such facts exist; PROVIDED THAT if on a date not less than two Business
Days prior to the date upon which by the terms hereof any such monies may become
payable for any purpose (including, without limitation, the payment of the
principal of, or premium, if any, or interest on any Security) the Trustee shall
not have received, with respect to such monies, the notice provided for in this
Section 5.5, then, anything herein contained to the contrary notwithstanding,
the Trustee shall have full power and authority to receive such monies and to
apply the same to the purpose for which they were received, and shall not be
affected by any notice to the contrary which may be received by it on or after
such prior date. Notwithstanding anything in this Article 5 to the contrary,
nothing shall prevent any payment by the Trustee to the Holders of monies
deposited with it pursuant to Article 10, and any such payment shall not be
subject to the provisions of Article 5.

     The Trustee, subject to the provisions of Section 9.1, shall be entitled to
rely on the delivery to it of a written notice by a Representative or a person
representing himself to be a holder of Senior Indebtedness (or a trustee on
behalf of such holder) to establish that such notice has been given by a
Representative or a holder of Senior Indebtedness or a trustee on behalf of any
such holder or holders. In the event that the Trustee determines in good faith
that further evidence is required with respect to the right of any person as a
holder of Senior Indebtedness to participate in any payment or distribution
pursuant to this Article 5, the Trustee may request such Person to furnish
evidence to the reasonable satisfaction of the Trustee as to the amount of
Senior Indebtedness held by such Person, the extent to which such Person is
entitled to participate in such payment or distribution and any other facts
pertinent to the rights of such Person under this Article 5, and if such
evidence is not furnished the Trustee may defer any payment to such Person
pending judicial determination as to the right of such Person to receive such
payment.

     SECTION 5.6.    TRUSTEE'S RELATION TO SENIOR INDEBTEDNESS.

     The Trustee in its individual capacity shall be entitled to all the rights
set forth in this Article 5 in respect of any Senior Indebtedness at any time
held by it, to the same extent as any other holder of Senior Indebtedness, and
nothing in Section 9.11 or elsewhere in this Indenture shall deprive the Trustee
of any of its rights as such holder.

     With respect to the holders of Senior Indebtedness, the Trustee undertakes
to perform or to observe only such of its covenants and obligations as are
specifically set forth in this Article 5, and no implied covenants or
obligations with respect to the holders of Senior Indebtedness shall be read
into this Indenture against the Trustee. The Trustee shall not be deemed to owe
any fiduciary duty to the holders of Senior Indebtedness and, subject to the
provisions of Section 9.1, the Trustee shall not be liable to any holder of
Senior Indebtedness if it shall pay over or deliver to Holders of Securities,
the Company or any other person money or assets to which any holder of Senior
Indebtedness shall be entitled by virtue of this Article 5 or otherwise.

     SECTION 5.7.    NO IMPAIRMENT OF SUBORDINATION.

     No right of any present or future holder of any Senior Indebtedness to
enforce subordination as herein provided shall at any time in any way be
prejudiced or impaired by any act or failure to act on the part of the Company
or by any act or failure to act, in good faith, by any such holder, or by any
noncompliance by the

                                      -41-
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Company with the terms, provisions and covenants of this Indenture, regardless
of any knowledge thereof which any such holder may have or otherwise be charged
with.

     SECTION 5.8.    CERTAIN CONVERSIONS DEEMED PAYMENT.

     For the purposes of this Article 5 only, (1) the issuance and delivery of
junior securities upon the redemption or purchase of Securities in accordance
with Article 3 or upon conversion of Securities in accordance with Article 4
shall not be deemed to constitute a payment or distribution on account of the
principal of (or premium, if any) or interest on Securities or on account of the
purchase or other acquisition of Securities, and (2) the payment, issuance or
delivery of cash (except in satisfaction of fractional shares pursuant to
Sections 3.1(a), 3.8 and 4.3), property or securities (other than junior
securities) upon conversion of a Security shall be deemed to constitute payment
on account of the principal of such Security. For the purposes of this Section
5.8, the term "junior securities" means (a) shares of any stock of any class of
the Company, or (b) securities of the Company which are subordinated in right of
payment to all Senior Indebtedness which may be outstanding at the time of
issuance or delivery of such securities to substantially the same extent as, or
to a greater extent than, the Securities are so subordinated as provided in this
Article. Nothing contained in this Article 5 or elsewhere in this Indenture or
in the Securities is intended to or shall impair, as among the Company, its
creditors other than holders of Senior Indebtedness and the Holders, the right,
which is absolute and unconditional, of the Holder of any Security to convert
such Security in accordance with Article 4 or to exchange such Security, in
whole or in part, for Common Stock in accordance with Section 3.1(a) or Section
3.8 if the Company elects to satisfy its obligations under Section 3.1(a) or
3.8, respectively, by delivery of Common Stock.

     SECTION 5.9.    ARTICLE APPLICABLE TO PAYING AGENTS.

     If at any time any Paying Agent other than the Trustee shall have been
appointed by the Company and be then acting hereunder, the term "Trustee" as
used in this Article shall (unless the context otherwise requires) be construed
as extending to and including such Paying Agent within its meaning as fully for
all intents and purposes as if such Paying Agent were named in this Article in
addition to or in place of the Trustee; PROVIDED, HOWEVER, that the first
paragraph of Section 5.5 shall not apply to the Company or any Affiliate of the
Company if it or such Affiliate acts as Paying Agent.

     SECTION 5.10.   SENIOR INDEBTEDNESS ENTITLED TO RELY.

     The holders of Senior Indebtedness (including, without limitation,
Designated Senior Indebtedness) shall have the right to rely upon this Article
5, and no amendment or modification of the provisions contained herein shall
diminish the rights of such holders unless such holders shall have agreed in
writing thereto.

                                    ARTICLE 6
                                    COVENANTS

     SECTION 6.1.    PAYMENT OF SECURITIES.

     The Company shall promptly make all payments in respect of the Securities
on the dates and in the manner provided in the Securities and this Indenture. An
installment of principal or interest or Additional Interest, if any, shall be
considered paid on the date it is due if the Paying Agent (other than the
Company) holds by 11:00 a.m., New York City time, on that date money, deposited
by the Company or an Affiliate thereof, sufficient to pay the installment. The
Company shall, (in immediately available funds) to the fullest

                                      -42-
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extent permitted by law, pay interest on overdue principal (including premium,
if any) and overdue installments of interest at the rate borne by the Securities
per annum.

     Payment of the principal of (and premium, if any) and any interest on the
Securities shall be made at the office or agency of the Company maintained for
that purpose in the Borough of Manhattan, The City of New York (which shall
initially be State Street Bank and Trust Company, N.A., an Affiliate of the
Trustee, as agent of the Trustee) or at the Corporate Trust Office of the
Trustee in such coin or currency of the United States of America as at the time
of payment is legal tender for payment of public and private debts; PROVIDED,
HOWEVER, that at the option of the Company payment of interest to Holders of
Certificated Securities may be made by check mailed to the address of the Person
entitled thereto as such address appears in the Register; PROVIDED FURTHER that
a Holder of a Certificated Security with an aggregate principal amount in excess
of $2,000,000 will be paid by wire transfer in immediately available funds at
the election of such Holder if such Holder has provided wire transfer
instructions to the Company and to a Paying Agent at least 5 Business Days prior
to the payment date.

     SECTION 6.2.    SEC REPORTS.

     The Company shall file all reports and other information and documents
which it is required to file with the SEC pursuant to Section 13 or 15(d) of the
Exchange Act, and within 30 days after it files them with the SEC, the Company
shall file copies of all such reports, information and other documents with the
Trustee.

     Delivery of such reports, information and documents to the Trustee is for
informational purposes only and the Trustee's receipt of such shall not
constitute constructive notice of any information contained therein or
determinable from information contained therein, including the Company's
compliance with any of its covenants hereunder (as to which the Trustee is
entitled to rely exclusively on Officers' Certificates).

     SECTION 6.3.    COMPLIANCE CERTIFICATES.

     The Company shall deliver to the Trustee, within 90 days after the end of
each fiscal year of the Company (beginning with the fiscal year ending December
31, 2002), an Officers' Certificate as to the signer's knowledge of the
Company's compliance with all conditions and covenants on its part contained in
this Indenture and stating whether or not the signer knows of any default or
Event of Default. If such signer knows of such a default or Event of Default,
the Officers' Certificate shall describe the default or Event of Default and the
efforts to remedy the same. For the purposes of this Section 6.3, compliance
shall be determined without regard to any grace period or requirement of notice
provided pursuant to the terms of this Indenture.

     SECTION 6.4.    FURTHER INSTRUMENTS AND ACTS.

     Upon request of the Trustee, the Company will execute and deliver such
further instruments and do such further acts as may be reasonably necessary or
proper to carry out more effectively the purposes of this Indenture.

     SECTION 6.5.    MAINTENANCE OF CORPORATE EXISTENCE.

     Subject to Article 7, the Company will do or cause to be done all things
necessary to preserve and keep in full force and effect its corporate existence.

                                      -43-
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     SECTION 6.6.    RULE 144A INFORMATION REQUIREMENT.

     Within the period prior to the expiration of the holding period applicable
to sales thereof under Rule 144(k) under the Securities Act (or any successor
provision), the Company covenants and agrees that (i) it shall, during any
period in which it is not subject to Section 13 or 15(d) under the Exchange Act,
upon the request of any Holder or beneficial holder of the Securities, make
available to such Holder or beneficial holder of Securities or any Common Stock
issued upon conversion thereof which continue to be Restricted Securities in
connection with any sale thereof and any prospective purchaser of Securities or
such Common Stock designated by such Holder or beneficial holder the information
required pursuant to Rule 144A(d)(4) under the Securities Act and (ii) it will
take such further action as any Holder or beneficial holder of such Securities
or such Common Stock may reasonably request, all to the extent required from
time to time to enable such Holder or beneficial holder to sell its Securities
or Common Stock without registration under the Securities Act within the
limitation of the exemption provided by Rule 144A, as such Rule may be amended
from time to time. Upon the request of any Holder or any beneficial holder of
the Securities or such Common Stock, the Company will deliver to such Holder a
written statement as to whether it has complied with such requirements.

     SECTION 6.7.    STAY, EXTENSION AND USURY LAWS.

     The Company covenants (to the extent that it may lawfully do so) that it
shall not at any time insist upon, plead, or in any manner whatsoever claim or
take the benefit or advantage of, any stay, extension or usury law or other law
which would prohibit or forgive the Company from paying all or any portion of
the principal of, premium, if any, or interest (including Additional Interest,
if any) on the Securities as contemplated herein, wherever enacted, now or at
any time hereafter in force, or which may affect the covenants or the
performance of this Indenture, and the Company (to the extent it may lawfully do
so) hereby expressly waives all benefit or advantage of any such law, and
covenants that it will not, by resort to any such law, hinder, delay or impede
the execution of any power herein granted to the Trustee, but will suffer and
permit the execution of every such power as though no such law had been enacted.

     SECTION 6.8.    PAYMENT OF ADDITIONAL INTEREST.

     If Additional Interest is payable by the Company pursuant to the
Registration Rights Agreement, the Company shall deliver to the Trustee a
certificate to that effect stating (i) the amount of such Additional Interest
that is payable and (ii) the date on which such Additional Interest is payable.
Unless and until a Trust Officer of the Trustee receives such a certificate, the
Trustee may assume without inquiry that no such Additional Interest is payable.
If the Company has paid Additional Interest directly to the Persons entitled to
it, the Company shall deliver to the Trustee a certificate setting forth all of
the particulars of such payment.

                                    ARTICLE 7
              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

     SECTION 7.1.    COMPANY MAY CONSOLIDATE, ETC, ONLY ON CERTAIN TERMS.

     The Company shall not consolidate with or merge into any other Person (in a
transaction in which the Company is not the surviving Person) or convey,
transfer or lease its properties and assets substantially as an entirety to any
successor Person, unless:

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          (1)  in case the Company shall consolidate with or merge into another
Person (in a transaction in which the Company is not the surviving Person) or
convey, transfer or lease its properties and assets substantially as an entirety
to any Person, the Person formed by such consolidation or into which the Company
is merged or the Person which acquires by conveyance or transfer, or which
leases, the properties and assets of the Company substantially as an entirety
shall be a corporation, limited liability company, partnership or trust
organized and validly existing under the laws of the United States of America,
any State thereof or the District of Columbia and shall expressly assume, by an
indenture supplemental hereto, executed and delivered to the Trustee, in form
reasonably satisfactory to the Trustee, the due and punctual payment of the
principal of and any premium and interest on all the Securities and the
performance or observance of every covenant of this Indenture on the part of the
Company to be performed or observed and the conversion rights shall be provided
for in accordance with Article 4, by supplemental indenture reasonably
satisfactory in form to the Trustee, executed and delivered to the Trustee, by
the Person (if other than the Company) formed by such consolidation or into
which the Company shall have been merged or by the Person which shall have
acquired the Company's assets;

          (2)  immediately after giving effect to such transaction, no Event of
Default, and no event which, after notice or lapse of time or both, would become
an Event of Default, shall have happened and be continuing; and

          (3)  the Company has delivered to the Trustee an Officers' Certificate
and an Opinion of Counsel, each stating that such consolidation, merger,
conveyance, transfer or lease and, if a supplemental indenture is required in
connection with such transaction, such supplemental indenture comply with this
Article and that all conditions precedent herein provided for relating to such
transaction have been complied with.

     SECTION 7.2.    SUCCESSOR SUBSTITUTED.

     Upon any consolidation of the Company with, or merger of the Company into,
any other Person or any conveyance, transfer or lease of the properties and
assets of the Company substantially as an entirety in accordance with Section
7.1, the successor Person formed by such consolidation or into which the Company
is merged or to which such conveyance, transfer or lease is made shall succeed
to, and be substituted for, and may exercise every right and power of, the
Company under this Indenture with the same effect as if such successor Person
had been named as the Company herein, and thereafter, except in the case of a
lease, the predecessor Person shall be relieved of all obligations and covenants
under this Indenture and the Securities.

                                    ARTICLE 8
                              DEFAULT AND REMEDIES

     SECTION 8.1.    EVENTS OF DEFAULT.

     An "Event of Default" shall occur if:

          (1)  the Company defaults in the payment of any interest or Additional
Interest, if any, payable to all holders of Transfer Restricted Securities (as
defined in the Registration Rights Agreement) on any Security when the same
becomes due and payable and the default continues for a period of 30 days,
whether or not such payment shall be prohibited by the provisions of Article 5
hereof;

                                      -45-
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          (2)  the Company defaults in the payment of any principal of
(including, without limitation, any premium, if any, on) any Security when the
same becomes due and payable, whether or not such payment shall be prohibited by
the provisions of Article 5 hereof;

          (3)  the Company fails to comply with any of its other covenants
contained in the Securities or this Indenture and the default continues and is
not cured or waived for the period and after the notice specified below;

          (4)  the Company defaults in the payment of the purchase price of any
Security when the same becomes due and payable, whether or not such payment
shall be prohibited by the provisions of Article 5 hereof; or

          (5)  any indebtedness under any bond, debenture, note or other
evidence of indebtedness for money borrowed by the Company or any Significant
Subsidiary (all or substantially all of the outstanding voting securities of
which are owned, directly or indirectly, by the Company) or under any mortgage,
indenture or instrument under which there may be issued or by which there may be
secured or evidenced any indebtedness for money borrowed by the Company or any
Significant Subsidiary (all or substantially all of the outstanding voting
securities of which are owned, directly or indirectly, by the Company) (an
"Instrument") with a principal amount then outstanding in excess of U.S.
$25,000,000 whether such indebtedness now exists or shall hereafter be created,
is not paid at final maturity of the Instrument (either at its stated maturity
or upon acceleration thereof), and such indebtedness is not discharged, or such
acceleration is not cured, waived, rescinded or annulled, within a period of 30
days after there shall have been given, by registered or certified mail, to the
Company by the Trustee or to the Company and the Trustee by the Holders of at
least 25% in aggregate principal amount of the outstanding Securities a written
notice specifying such default and requiring the Company to cause such
indebtedness to be discharged or cause such default to be cured or waived or
such acceleration to be rescinded or annulled and stating that such notice is a
"Notice of Default" hereunder; or

          (6)  the Company or any Significant Subsidiary pursuant to or within
the meaning of any Bankruptcy Law:

               (A)  commences a voluntary case or proceeding;

               (B)  consents to the entry of an order for relief against it in
                    an involuntary case or proceeding;

               (C)  consents to the appointment of a Custodian of it or for all
                    or substantially all of its property; or

               (D)  makes a general assignment for the benefit of its creditors;
                    or

          (7)  a court of competent jurisdiction enters an order or decree under
any Bankruptcy Law that:

               (A)  is for relief against the Company or any Significant
                    Subsidiary in an involuntary case or proceeding;

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               (B)  appoints a Custodian of the Company or any Significant
                    Subsidiary or for all or substantially all of the property
                    of the Company or any Significant Subsidiary; or

               (C)  orders the liquidation of the Company or any Significant
                    Subsidiary;

and in each case the order or decree remains unstayed and in effect for 60
consecutive days.

     The term "Bankruptcy Law" means Title 11 of the United States Code (or any
successor thereto) or any similar federal or state law for the relief of
debtors. The term "Custodian" means any receiver, trustee, assignee, liquidator,
sequestrator or similar official under any Bankruptcy Law.

     A default under clause (3) above is not an Event of Default until the
Trustee notifies the Company, or the Holders of at least 25% in aggregate
principal amount of the Securities then outstanding notify the Company and the
Trustee, in writing of the default, and the Company does not cure the default
within 60 days after receipt of such notice. The notice given pursuant to this
Section 8.1 must specify the default, demand that it be remedied and state that
the notice is a "Notice of Default." When any default under this Section 8.1 is
cured, it ceases.

     The Trustee shall not be charged with knowledge of any Event of Default
unless written notice thereof shall have been given to a Trust Officer at the
Corporate Trust Office of the Trustee by the Company, a Paying Agent, any Holder
or any agent of any Holder.

     SECTION 8.2.    ACCELERATION.

     If an Event of Default (other than an Event of Default specified in clause
(6) or (7) of Section 8.1) with respect to the Company occurs and is continuing,
the Trustee may, by notice to the Company, or the Holders of at least 25% in
aggregate principal amount of the Securities then outstanding may, by notice to
the Company and the Trustee, declare all unpaid principal of the Securities
outstanding on the date of acceleration (if not then due and payable) to be due
and payable upon any such declaration, and the same shall become and be
immediately due and payable. If an Event of Default specified in clause (6) or
(7) of Section 8.1 with respect to the Company occurs, all unpaid principal of
the Securities then outstanding shall ipso facto become and be immediately due
and payable without any declaration or other act on the part of the Trustee or
any Holder. Any payments by the Company on the Securities following such
acceleration will be subject to the subordination provisions of Article 5 to the
extent provided therein. After an acceleration, but before a judgment or decree
relating thereto by any federal or state court of competent jurisdiction has
been entered or issued, the Holders of a majority in aggregate principal amount
of the Securities then outstanding by notice to the Trustee and the Company may
rescind an acceleration and its consequences if (a) all existing Events of
Default, other than the nonpayment of the principal of the Securities which has
become due solely by such declaration of acceleration, have been cured or
waived; (b) to the extent the payment of such interest is lawful, interest
(calculated at the rate per annum borne by the Securities) on overdue
installments of interest and overdue principal, which has become due otherwise
than by such declaration of acceleration, has been paid or deposited with the
Trustee; (c) the rescission would not conflict with any judgment or decree of a
court of competent jurisdiction; and (d) all payments due to the Trustee and any
predecessor Trustee under Section 9.7 have been made. No such rescission shall
affect any subsequent default or impair any right consequent thereto.

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     SECTION 8.3.    OTHER REMEDIES.

     If an Event of Default occurs and is continuing, the Trustee may, but shall
not be obligated to, pursue any available remedy by proceeding at law or in
equity to collect the payment of the principal of or interest on the Securities
or to enforce the performance of any provision of the Securities or this
Indenture, unless the Holders have offered to the Trustee reasonable indemnity
to the Trustee against any loss, liability or expense.

     The Trustee may maintain a proceeding even if it does not possess any of
the Securities or does not produce any of them in the proceeding. A delay or
omission by the Trustee or any Securityholder in exercising any right or remedy
accruing upon an Event of Default shall not impair the right or remedy or
constitute a waiver of or acquiescence in the Event of Default. No remedy is
exclusive of any other remedy. All available remedies are cumulative to the
extent permitted by law.

     SECTION 8.4.    WAIVER OF DEFAULTS AND EVENTS OF DEFAULT.

     Subject to Sections 8.7 and 11.2, the Holders of a majority in aggregate
principal amount of the Securities then outstanding by notice to the Trustee may
waive an existing default or Event of Default and its consequences, except a
default or Event of Default in the payment of the principal or premium, if any,
or interest on any Security, a failure by the Company to convert any Securities
into Common Stock or any default or Event of Default in respect of any provision
of this Indenture or the Securities which, under Section 11.2, cannot be
modified or amended without the consent of the Holder of each Security affected.
When a default or Event of Default is waived, it is cured and ceases.

     SECTION 8.5.    CONTROL BY MAJORITY.

     The Holders of a majority in aggregate principal amount of the Securities
then outstanding may direct the time, method and place of conducting any
proceeding for any remedy available to the Trustee or exercising any trust or
power conferred on it. However, the Trustee may refuse to follow any direction
that conflicts with law or this Indenture, that the Trustee determines may be
unduly prejudicial to the rights of another Holder or the Trustee, or that may
involve the Trustee in personal liability unless the Trustee is offered
indemnity satisfactory to it; PROVIDED, HOWEVER, that the Trustee may take any
other action deemed proper by the Trustee which is not inconsistent with such
direction.

     SECTION 8.6.    LIMITATIONS ON SUITS.

     A Holder may not pursue any remedy with respect to this Indenture or the
Securities (except actions for payment of overdue principal or interest or for
the conversion of the Securities pursuant to Article 4) unless:

          (1)  the Holder gives to the Trustee written notice of a continuing
Event of Default;

          (2)  the Holders of at least 25% in aggregate principal amount of the
then outstanding Securities make a written request to the Trustee to pursue the
remedy;

          (3)  such Holder or Holders offer to the Trustee reasonable indemnity
to the Trustee against any loss, liability or expense;

          (4)  the Trustee does not comply with the request within 60 days after
receipt of the notice, request and offer of indemnity; and

                                      -48-
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          (5)  no direction inconsistent with such written request has been
given to the Trustee during such 60-day period by the Holders of a majority in
aggregate principal amount of the Securities then outstanding.

     A Securityholder may not use this Indenture to prejudice the rights of
another Securityholder or to obtain a preference or priority over such other
Securityholder.

     SECTION 8.7.    RIGHTS OF HOLDERS TO RECEIVE PAYMENT AND TO CONVERT.

     Notwithstanding any other provision of this Indenture, the right of any
Holder of a Security to receive payment of the principal of and interest on the
Security, on or after the respective due dates expressed in the Security and
this Indenture, to convert such Security in accordance with Article 4 and to
bring suit for the enforcement of any such payment on or after such respective
dates or the right to convert, is absolute and unconditional and shall not be
impaired or affected without the consent of the Holder.

     SECTION 8.8.    COLLECTION SUIT BY TRUSTEE.

     If an Event of Default in the payment of principal or interest specified in
clause (1) or (2) of Section 8.1 occurs and is continuing, the Trustee may
recover judgment in its own name and as trustee of an express trust against the
Company or another obligor on the Securities for the whole amount of principal
and accrued interest remaining unpaid, together with, to the extent that payment
of such interest is lawful, interest on overdue principal and on overdue
installments of interest, in each case at the rate per annum borne by the
Securities and such further amount as shall be sufficient to cover the costs and
expenses of collection, including the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel.

     SECTION 8.9.    TRUSTEE MAY FILE PROOFS OF CLAIM.

     The Trustee may file such proofs of claim and other papers or documents as
may be necessary or advisable in order to have the claims of the Trustee
(including any claim for the reasonable compensation, expenses, disbursements
and advances of the Trustee, its agents and counsel) and the Holders allowed in
any judicial proceedings relative to the Company (or any other obligor on the
Securities), its creditors or its property and shall be entitled and empowered
to collect and receive any money or other property payable or deliverable on any
such claims and to distribute the same, and any Custodian in any such judicial
proceeding is hereby authorized by each Holder to make such payments to the
Trustee and, in the event that the Trustee shall consent to the making of such
payments directly to the Holders, to pay to the Trustee any amount due to it for
the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under
Section 9.7, and to the extent that such payment of the reasonable compensation,
expenses, disbursements and advances in any such proceedings shall be denied for
any reason, payment of the same shall be secured by a lien on, and shall be paid
out of, any and all distributions, dividends, money, securities and other
property which the Holders may be entitled to receive in such proceedings,
whether in liquidation or under any plan of reorganization or arrangement or
otherwise. Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to, or, on behalf of any Holder, to authorize, accept or
adopt any plan of reorganization, arrangement, adjustment or composition
affecting the Securities or the rights of any Holder thereof, or to authorize
the Trustee to vote in respect of the claim of any Holder in any such
proceeding.

                                      -49-
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     SECTION 8.10.   PRIORITIES.

     If the Trustee collects any money pursuant to this Article 8, it shall pay
out the money in the following order:

     First, to the Trustee for amounts due under Section 9.7;

     Second, to the holders of Senior Indebtedness to the extent required by
Article 5;

     Third, to Holders for amounts due and unpaid on the Securities for
principal and interest (including Additional Interest, if any), ratably, without
preference or priority of any kind, according to the amounts due and payable on
the Securities for principal and interest (including Additional Interest, if
any), respectively; and

     Fourth, the balance, if any, to the Company.

     The Trustee may fix a record date and payment date for any payment to
Holders pursuant to this Section 8.10.

     SECTION 8.11.   UNDERTAKING FOR COSTS.

     In any suit for the enforcement of any right or remedy under this Indenture
or in any suit against the Trustee for any action taken or omitted by it as
Trustee, a court in its discretion may require the filing by any party litigant
in the suit of an undertaking to pay the costs of the suit, and the court in its
discretion may assess reasonable costs, including reasonable attorneys' fees and
expenses, against any party litigant in the suit, having due regard to the
merits and good faith of the claims or defenses made by the party litigant. This
Section 8.11 does not apply to a suit made by the Trustee, a suit by a Holder
pursuant to Section 8.7, or a suit by Holders of more than 10% in aggregate
principal amount of the Securities then outstanding.

                                    ARTICLE 9
                                     TRUSTEE

     SECTION 9.1.    DUTIES OF TRUSTEE.

     (a)  If an Event of Default has occurred and is continuing, the Trustee
shall exercise such of the rights and powers vested in it by this Indenture and
use the same degree of care and skill in its exercise as a prudent person would
exercise or use under the circumstances in the conduct of his or her own
affairs.

     (b)  Except during the continuance of an Event of Default:

          (1)  the Trustee need perform only those duties as are specifically
set forth in this Indenture and no others; and

          (2)  in the absence of bad faith on its part, the Trustee may
conclusively rely, as to the truth of the statements and the correctness of the
opinions expressed therein, upon certificates or opinions furnished to the
Trustee and conforming to the requirements of this Indenture. The Trustee,
however, shall examine any certificates and opinions which by any provision
hereof are specifically required to be delivered to the Trustee to determine
whether or not they conform to the requirements of this Indenture.

                                      -50-
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     (c) The Trustee may not be relieved from liability for its own negligent
action, its own negligent failure to act, or its own willful misconduct, except
that:

          (1)  this paragraph does not limit the effect of subsection (b) of
this Section 9.1;

          (2)  the Trustee shall not be liable for any error of judgment made in
good faith by a Trust Officer, unless it is proved that the Trustee was
negligent in ascertaining the pertinent facts; and

          (3)  the Trustee shall not be liable with respect to any action it
takes or omits to take in good faith in accordance with a direction received by
it pursuant to Section 8.5.

     (d)  No provision of this Indenture shall require the Trustee to expend or
risk its own funds or otherwise incur any financial liability in the performance
of any of its duties hereunder or in the exercise of any of its rights or powers
unless the Trustee shall have received adequate indemnity in its reasonable
opinion against potential costs and liabilities incurred by it relating thereto.

     (e)  Every provision of this Indenture that in any way relates to the
Trustee is subject to subsections (a), (b), (c) and (d) of this Section 9.1.

     (f)  The Trustee shall not be liable for interest on any money received by
it except as the Trustee may agree in writing with the Company. Money held in
trust by the Trustee need not be segregated from other funds except to the
extent required by law.

     SECTION 9.2.    RIGHTS OF TRUSTEE.

     Subject to Section 9.1:

     (a)  The Trustee may rely conclusively on any document reasonably believed
by it to be genuine and to have been signed or presented by the proper person.
The Trustee need not investigate any fact or matter stated in the document.

     (b)  Before the Trustee acts or refrains from acting, it may require an
Officers' Certificate or an Opinion of Counsel, which shall conform to Section
12.4(b). The Trustee shall not be liable for any action it takes or omits to
take in good faith in reliance on such Officers' Certificate or Opinion of
Counsel.

     (c)  The Trustee may act through its agents and shall not be responsible
for the misconduct or negligence of any agent appointed with due care.

     (d)  The Trustee shall not be liable for any action it takes or omits to
take in good faith which it believes to be authorized or within its rights or
powers under the Indenture.

     (e)  The Trustee may consult with counsel of its selection, and the advice
or opinion of such counsel as to matters of law shall be full and complete
authorization and protection in respect of any such action taken, omitted or
suffered by it hereunder in good faith and in accordance with the advice or
opinion of such counsel.

     (f)  The Trustee shall be under no obligation to exercise any of the rights
or powers vested in it by this Indenture at the request or direction of any of
the Holders pursuant to this Indenture, unless such

                                      -51-
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Holders shall have offered to the Trustee security or indemnity satisfactory to
the Trustee against the costs, expenses and liabilities which might be incurred
by it in compliance with such request or direction.

     (g)  The Trustee shall not be bound to make any investigation into the
facts or matters stated in any resolution, certificate, statement, instrument,
opinion, report, notice, request, direction, consent, order, bond, debenture,
note, other evidence of indebtedness or other paper or document, but the
Trustee, in its discretion, may make such further inquiry or investigation into
such facts or matters as it may see fit, and, if the Trustee shall determine to
make such further inquiry or investigation, it shall be entitled to examine the
books, records and premises of the Company, personally or by agent or attorney
at the sole cost of the Company and shall incur no liability or additional
liability of any kind by reason of such inquiry or investigation.

     (h)  The Trustee shall not be deemed to have notice of any Default or Event
of Default unless a Trust Officer of the Trustee has actual knowledge thereof or
unless written notice of any event which is in fact such a default is received
by the Trustee at the Corporate Trust Office, and such notice references the
Securities and this Indenture.

     (i)  The rights, privileges, protections, immunities and benefits given to
the Trustee, including, without limitation, its right to be indemnified, are
extended to, and shall be enforceable by, the Trustee in each of its capacities
hereunder, and to each agent, custodian and other Person employed to act
hereunder.

     SECTION 9.3.    INDIVIDUAL RIGHTS OF TRUSTEE.

     The Trustee in its individual or any other capacity may become the owner or
pledgee of Securities and may otherwise deal with the Company or an Affiliate of
the Company with the same rights it would have if it were not Trustee. Any Agent
may do the same with like rights. However, the Trustee is subject to Sections
9.10 and 9.11.

     SECTION 9.4.    TRUSTEE'S DISCLAIMER.

     The Trustee makes no representation as to the validity or adequacy of this
Indenture or the Securities, it shall not be accountable for the Company's use
of the proceeds from the Securities, and it shall not be responsible for any
statement in the Securities other than its certificate of authentication.

     SECTION 9.5.    NOTICE OF DEFAULT OR EVENTS OF DEFAULT.

     If a default or an Event of Default occurs and is continuing and if it is
known to the Trustee, the Trustee shall mail to each Securityholder notice of
the default or Event of Default within 90 days after it occurs. However, the
Trustee may withhold the notice if and so long as a committee of its Trust
Officers in good faith determines that withholding notice is in the interests of
Securityholders, except in the case of a default or an Event of Default in
payment of the principal of or interest on any Security.

     SECTION 9.6.    REPORTS BY TRUSTEE TO HOLDERS.

     If such report is required by TIA Section 313, within 60 days after each
May 15, beginning with the May 15 following the date of this Indenture, the
Trustee shall mail to each Securityholder a brief report dated as of such May 15
that complies with TIA Section 313(a). The Trustee also shall comply with TIA
Section 313(b)(2) and (c).

                                      -52-
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     A copy of each report at the time of its mailing to Securityholders shall
be mailed to the Company and filed with the SEC and each stock exchange, if any,
on which the Securities are listed. The Company shall notify the Trustee
whenever the Securities become listed on any stock exchange or listed or
admitted to trading on any quotation system and any changes in the stock
exchanges or quotation systems on which the Securities are listed or admitted to
trading and of any delisting thereof.

     SECTION 9.7.    COMPENSATION AND INDEMNITY.

     The Company shall pay to the Trustee from time to time such compensation
(as agreed to from time to time by the Company and the Trustee in writing) for
its services (which compensation shall not be limited by any provision of law in
regard to the compensation of a trustee of an express trust). The Company shall
reimburse the Trustee upon request for all reasonable disbursements, expenses
and advances incurred or made by it in accordance with the Indenture. Such
expenses may include the reasonable compensation, disbursements and expenses of
the Trustee's agents and counsel.

     The Company shall indemnify the Trustee or any predecessor Trustee (which
for purposes of this Section 9.7 shall include its officers, directors,
employees and agents) for, and hold it harmless against, any and all loss,
liability or expense including taxes (other than taxes based upon, measured by
or determined by the income of the Trustee) (including reasonable legal fees and
expenses) incurred by it in connection with the acceptance or administration of
its duties under this Indenture or any action or failure to act as authorized or
within the discretion or rights or powers conferred upon the Trustee hereunder
including the reasonable costs and expenses of the Trustee and its counsel in
defending itself against any claim or liability in connection with the exercise
or performance of any of its powers or duties hereunder. The Trustee shall
notify the Company promptly of any claim asserted against the Trustee for which
it may seek indemnity. The Company need not pay for any settlement without its
written consent, which shall not be unreasonably withheld.

     The Company need not reimburse the Trustee for any expense or indemnify it
against any loss or liability incurred by it resulting from its gross
negligence, willful misconduct, recklessness or bad faith.

     To secure the Company's payment obligations in this Section 9.7, the
Trustee shall have a senior claim to which the Securities are hereby made
subordinate on all money or property held or collected by the Trustee, except
such money or property held in trust to pay the principal of and interest on the
Securities. The obligations of the Company under this Section 9.7 shall survive
the satisfaction and discharge of this Indenture or the resignation or removal
of the Trustee.

     When the Trustee incurs expenses or renders services after an Event of
Default specified in clause (6) or (7) of Section 8.1 occurs, the expenses and
the compensation for the services are intended to constitute expenses of
administration under any Bankruptcy Law. The provisions of this Section shall
survive the termination of this Indenture.

     SECTION 9.8.    REPLACEMENT OF TRUSTEE.

     The Trustee may resign by so notifying the Company. The Holders of a
majority in aggregate principal amount of the Securities then outstanding may
remove the Trustee by so notifying the Trustee and may, with the Company's
written consent, appoint a successor Trustee. The Company may remove the Trustee
if:

          (1)  the Trustee fails to comply with Section 9.10;

                                      -53-
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          (2)  the Trustee is adjudged a bankrupt or an insolvent;

          (3)  a receiver or other public officer takes charge of the Trustee or
its property; or

          (4)  the Trustee becomes incapable of acting.

     If the Trustee resigns or is removed or if a vacancy exists in the office
of Trustee for any reason, the Company shall promptly appoint a successor
Trustee. The resignation or removal of a Trustee shall not be effective until a
successor Trustee shall have delivered the written acceptance of its appointment
as described below.

     If a successor Trustee does not take office within 45 days after the
retiring Trustee resigns or is removed, the retiring Trustee, the Company or the
Holders of 10% in principal amount of the Securities then outstanding may
petition any court of competent jurisdiction for the appointment of a successor
Trustee at the expense of the Company.

     If the Trustee fails to comply with Section 9.10, the Company may remove
the Trustee and any Holder may petition any court of competent jurisdiction for
the removal of the Trustee and the appointment of a successor Trustee.

     A successor Trustee shall deliver a written acceptance of its appointment
to the retiring Trustee and to the Company. Immediately after that, the retiring
Trustee shall transfer all property held by it as Trustee to the successor
Trustee and be released from its obligations (exclusive of any liabilities that
the retiring Trustee may have incurred while acting as Trustee) hereunder, the
resignation or removal of the retiring Trustee shall become effective, and the
successor Trustee shall have all the rights, powers and duties of the Trustee
under this Indenture. A successor Trustee shall mail notice of its succession to
each Holder.

     A retiring Trustee shall not be liable for the acts or omissions of any
successor Trustee after its succession.

     Notwithstanding replacement of the Trustee pursuant to this Section 9.8,
the Company's obligations under Section 9.7 shall continue for the benefit of
the retiring Trustee.

     SECTION 9.9.    SUCCESSOR TRUSTEE BY MERGER, ETC.

     If the Trustee consolidates with, merges or converts into, or transfers all
or substantially all of its corporate trust assets (including the administration
of this Indenture) to, another corporation, the resulting, surviving or
transferee corporation, without any further act, shall be the successor Trustee,
PROVIDED such transferee corporation shall qualify and be eligible under Section
9.10. Such successor Trustee shall promptly mail notice of its succession to the
Company and each Holder.

     SECTION 9.10.   ELIGIBILITY; DISQUALIFICATION.

     The Trustee shall always satisfy the requirements of paragraphs (1), (2)
and (5) of TIA Section 310(a). The Trustee (or its parent holding company) shall
have a combined capital and surplus of at least $50,000,000. If at any time the
Trustee shall cease to satisfy any such requirements, it shall resign
immediately in the manner and with the effect specified in this Article 9. The
Trustee shall be subject to the provisions of TIA Section 310(b). Nothing herein
shall prevent the Trustee from filing with the SEC the application referred to
in the penultimate paragraph of TIA Section 310(b).

                                      -54-
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     SECTION 9.11.   PREFERENTIAL COLLECTION OF CLAIMS AGAINST COMPANY.

     The Trustee shall comply with TIA Section 311(a), excluding any creditor
relationship listed in TIA Section 311(b). A Trustee who has resigned or been
removed shall be subject to TIA Section 311(a) to the extent indicated therein.

                                   ARTICLE 10
                     SATISFACTION AND DISCHARGE OF INDENTURE

     SECTION 10.1.   SATISFACTION AND DISCHARGE OF INDENTURE.

     This Indenture shall cease to be of further effect (except as to any
surviving rights of conversion, registration of transfer or exchange of
Securities herein expressly provided for and except as further provided below),
and the Trustee, on demand of and at the expense of the Company, shall execute
proper instruments acknowledging satisfaction and discharge of this Indenture,
when

          (1)  either

               (A)  all Securities theretofore authenticated and delivered
(other than (i) Securities which have been destroyed, lost or stolen and which
have been replaced or paid as provided in Section 2.7 and (ii) Securities for
whose payment money has theretofore been deposited in trust and thereafter
repaid to the Company as provided in Section 10.3) have been delivered to the
Trustee for cancellation; or

               (B)  all such Securities not theretofore delivered to the Trustee
for cancellation

                     (i)   have become due and payable, or

                     (ii)  will become due and payable at the Final Maturity
Date within one year, or

                     (iii) are to be called for redemption within one year under
arrangements reasonably satisfactory to the Trustee for the giving of notice of
redemption by the Trustee in the name, and at the expense, of the Company,

                     (iv)  and the Company, in the case of clause (i), (ii) or
(iii) above, has irrevocably deposited or caused to be irrevocably deposited
with the Trustee or a Paying Agent (other than the Company or any of its
Affiliates) as trust funds in trust for such purpose cash in an amount
sufficient to pay and discharge the entire indebtedness on such Securities not
theretofore delivered to the Trustee for cancellation, for principal and
interest (including Additional Interest, if any) to the date of such deposit (in
the case of Securities which have become due and payable) or to the Final
Maturity Date or Redemption Date, as the case may be;

          (2)  the Company has paid or caused to be paid all other sums payable
hereunder by the Company; and

          (3)  the Company has delivered to the Trustee an Officers' Certificate
and an Opinion of Counsel, each stating that all conditions precedent herein
provided for relating to the satisfaction and discharge of this Indenture have
been complied with.

                                      -55-
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     Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 9.7 shall survive and,
if money shall have been deposited with the Trustee pursuant to subclause (B) of
clause (1) of this Section, the provisions of Sections 2.3, 2.4, 2.5, 2.6, 2.7,
2.12, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13 and 12.5, Article 4, the last paragraph
of Section 6.2 and this Article 10, shall survive until the Securities have been
paid in full.

     SECTION 10.2.   APPLICATION OF TRUST MONEY.

     Subject to the provisions of Section 10.3, the Trustee or a Paying Agent
shall hold in trust, for the benefit of the Holders, all money deposited with it
pursuant to Section 10.1 and shall apply the deposited money in accordance with
this Indenture and the Securities to the payment of the principal of and
interest on the Securities. Money so held in trust shall not be subject to the
subordination provisions of Article 5.

     SECTION 10.3.   REPAYMENT TO COMPANY.

     The Trustee and each Paying Agent shall promptly pay to the Company any
excess money (i) deposited with them pursuant to Section 10.1 and (ii) held by
them at any time.

     The Trustee and each Paying Agent shall pay to the Company any money held
by them for the payment of principal or interest that remains unclaimed two
years after a right to such money has matured or, if the Company has delivered
to the Trustee and each Paying Agent a certificate to the effect that applicable
escheat laws have been amended and has requested that the Trustee deliver such
funds to the Company at an earlier date, then the Trustee and each Paying Agent
shall deliver such funds to the Company in accordance with such request;
PROVIDED, HOWEVER, that the Trustee or such Paying Agent, before being required
to make any such payment, may at the expense of the Company cause to be mailed
to each Holder entitled to such money notice that such money remains unclaimed
and that after a date specified therein, which shall be at least 30 days from
the date of such mailing, any unclaimed balance of such money then remaining
will be repaid to the Company. After payment to the Company, Holders entitled to
money must look to the Company for payment as general creditors unless an
abandoned property law designates another person.

     SECTION 10.4.   REINSTATEMENT.

     If the Trustee or any Paying Agent is unable to apply any money in
accordance with Section 10.2 by reason of any legal proceeding or by reason of
any order or judgment of any court or governmental authority enjoining,
restraining or otherwise prohibiting such application, then the Company's
obligations under this Indenture and the Securities shall be revived and
reinstated as though no deposit had occurred pursuant to Section 10.1 until such
time as the Trustee or such Paying Agent is permitted to apply all such money in
accordance with Section 10.2; PROVIDED, HOWEVER, that if the Company has made
any payment of the principal of or interest on any Securities because of the
reinstatement of its obligations, the Company shall be subrogated to the rights
of the Holders of such Securities to receive any such payment from the money
held by the Trustee or such Paying Agent.

                                      -56-
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                                   ARTICLE 11
                       AMENDMENTS, SUPPLEMENTS AND WAIVERS

     SECTION 11.1.   WITHOUT CONSENT OF HOLDERS.

     The Company and the Trustee may amend, modify or supplement this Indenture
or the Securities without notice to or consent of any Securityholder:

     (a)  to comply with Sections 4.11 and 7.1;

     (b)  to cure any ambiguity, defect or inconsistency;

     (c)  to make any other change that does not materially adversely affect the
rights of any Securityholder;

     (d)  to comply with the provisions of the TIA;

     (e)  to appoint a successor Trustee;

     (f)  to provide for uncertificated Securities in addition to or in place of
Certificated Securities; or

     (g)  to add to the covenants of the Company for the equal and ratable
benefit of the Securityholders or to surrender any right, power or option
conferred upon the Company.

     SECTION 11.2.   WITH CONSENT OF HOLDERS.

     The Company and the Trustee may amend or supplement this Indenture or the
Securities with the written consent of the Holders of at least a majority in
aggregate principal amount of the Securities then outstanding. The Holders of at
least a majority in aggregate principal amount of the Securities then
outstanding may waive compliance in a particular instance by the Company with
any provision of this Indenture or the Securities without notice to any
Securityholder. However, notwithstanding the foregoing but subject to Section
11.4, without the written consent of each Securityholder affected, an amendment,
supplement, modification or waiver, including a waiver pursuant to Section 8.4,
may not:

     (a)  change the stated maturity of the principal of, or interest on, any
Security;

     (b)  reduce the principal amount of, or any premium or interest on, any
Security;

     (c)  reduce the amount of principal payable upon acceleration of the
maturity of any Security;

     (d)  change the place or currency of payment of principal of, or any
premium or interest on, any Security;

     (e)  impair the right to institute suit for the enforcement of any payment
on, or with respect to, any Security;

     (f)  modify the subordination provisions of Article 5 in a manner
materially adverse to the Holders of Securities;

                                      -57-
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     (g)  modify the provisions with respect to the purchase right of Holders
pursuant to Article 3 upon a Change in Control in a manner adverse to Holders;

     (h)  adversely affect the right of Holders to convert Securities other than
as provided in or under Article 4 of this Indenture;

     (i)  reduce the percentage of the aggregate principal amount of the
outstanding Securities whose Holders must consent to a modification or
amendment;

     (j)  reduce the percentage of the aggregate principal amount of the
outstanding Securities necessary for the waiver of compliance with certain
provisions of this Indenture or the waiver of certain defaults under this
Indenture; and

     (k)  modify any of the provisions of this Section or Section 8.4, except to
increase any such percentage or to provide that certain provisions of this
Indenture cannot be modified or waived without the consent of the Holder of each
outstanding Security affected thereby.

     It shall not be necessary for the consent of the Holders under this Section
11.2 to approve the particular form of any proposed amendment, supplement or
waiver, but it shall be sufficient if such consent approves the substance
thereof.

     After an amendment, supplement or waiver under this Section 11.2 becomes
effective, the Company shall mail to the Holders affected thereby a notice
briefly describing the amendment, supplement or waiver. Any failure of the
Company to mail such notice, or any defect therein, shall not, however, in any
way impair or affect the validity of any such amendment, supplement or waiver.
An amendment or supplement under this Section 11.2 or under Section 11.1 may not
make any change that adversely affects the rights under Article 5 of any holder
of an issue of Senior Indebtedness unless the holders of that issue, pursuant to
its terms, consent to the change.

     SECTION 11.3.   COMPLIANCE WITH TRUST INDENTURE ACT.

     Every amendment to or supplement of this Indenture or the Securities shall
comply with the TIA as in effect at the date of such amendment or supplement.

     SECTION 11.4.   REVOCATION AND EFFECT OF CONSENTS.

     Until an amendment, supplement or waiver becomes effective, a consent to it
by a Holder is a continuing consent by the Holder and every subsequent Holder of
a Security or portion of a Security that evidences the same debt as the
consenting Holder's Security, even if notation of the consent is not made on any
Security. However, any such Holder or subsequent Holder may revoke the consent
as to its Security or portion of a Security if the Trustee receives the notice
of revocation before the date the amendment, supplement or waiver becomes
effective.

     After an amendment, supplement or waiver becomes effective, it shall bind
every Securityholder, unless it makes a change described in any of clauses (a)
through (k) of Section 11.2. In that case the amendment, supplement or waiver
shall bind each Holder of a Security who has consented to it and every
subsequent Holder of a Security or portion of a Security that evidences the same
debt as the consenting Holder's Security.

                                      -58-
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     SECTION 11.5.   NOTATION ON OR EXCHANGE OF SECURITIES.

     If an amendment, supplement or waiver changes the terms of a Security, the
Trustee may require the Holder of the Security to deliver it to the Trustee. The
Trustee may place an appropriate notation on the Security about the changed
terms and return it to the Holder. Alternatively, if the Company or the Trustee
so determines, the Company in exchange for the Security shall issue and the
Trustee shall authenticate a new Security that reflects the changed terms.

     SECTION 11.6.   TRUSTEE TO SIGN AMENDMENTS, ETC.

     The Trustee shall sign any amendment or supplemental indenture authorized
pursuant to this Article 11 if the amendment or supplemental indenture does not
adversely affect the rights, duties, liabilities or immunities of the Trustee.
If it does, the Trustee may, in its sole discretion, but need not sign it. In
signing or refusing to sign such amendment or supplemental indenture, the
Trustee shall be entitled to receive and, subject to Section 9.1, shall be fully
protected in relying upon, an Opinion of Counsel stating that such amendment or
supplemental indenture is authorized or permitted by this Indenture. The Company
may not sign an amendment or supplement indenture until the Board of Directors
approves it.

     SECTION 11.7.   EFFECT OF SUPPLEMENTAL INDENTURES

     Upon the execution of any supplemental indenture under this Article, this
Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

                                   ARTICLE 12
                                  MISCELLANEOUS

     SECTION 12.1.   TRUST INDENTURE ACT CONTROLS.

     If any provision of this Indenture limits, qualifies or conflicts with the
duties imposed by any of Sections 310 to 317, inclusive, of the TIA through
operation of Section 318(c) thereof, such imposed duties shall control.

     SECTION 12.2.   NOTICES.

     Any demand, authorization notice, request, consent or communication shall
be given in writing and delivered in person or mailed by first-class mail,
postage prepaid, addressed as follows or transmitted by facsimile transmission
(confirmed by delivery in person or mail by first-class mail, postage prepaid,
or by guaranteed overnight courier) to the following facsimile numbers:

               if to the Company, to:

               Cymer, Inc.
               16750 Via Del Campo Court
               San Diego, California 92127
               Attention: Chief Financial Officer
               Facsimile No.: (858) 385-6090

                                      -59-
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               if to the Trustee, to:

               State Street Bank and Trust Company of California, N.A.
               633 West 5th Street, 12th Floor
               Los Angeles, California 90071
               Attention: Corporate Trust Administration (Cymer, Inc.-- 3 1/2%
               Convertible Subordinated Notes Due February 15, 2009)
               Facsimile No.: (213) 362-7357

     Such notices or communications shall be effective when received.

     The Company or the Trustee by notice to the other may designate additional
or different addresses for subsequent notices or communications.

     Any notice or communication mailed to a Securityholder shall be mailed by
first-class mail or delivered by an overnight delivery service to it at its
address shown on the register kept by the Primary Registrar.

     Failure to mail a notice or communication to a Securityholder or any defect
in it shall not affect its sufficiency with respect to other Securityholders. If
a notice or communication to a Securityholder is mailed in the manner provided
above, it is duly given, whether or not the addressee receives it.

     SECTION 12.3.   COMMUNICATIONS BY HOLDERS WITH OTHER HOLDERS.

     Securityholders may communicate pursuant to TIA Section 312(b) with other
Securityholders with respect to their rights under this Indenture or the
Securities. The Company, the Trustee, the Registrar and any other person shall
have the protection of TIA Section 312(c).

     SECTION 12.4.   CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT.

     (a)  Upon any request or application by the Company to the Trustee to take
any action under this Indenture, the Company shall furnish to the Trustee at the
request of the Trustee:

          (1)  an Officers' Certificate stating that, in the opinion of the
signers, all conditions precedent (including any covenants, compliance with
which constitutes a condition precedent), if any, provided for in this Indenture
relating to the proposed action have been complied with; and

          (2)  an Opinion of Counsel stating that, in the opinion of such
counsel, all such conditions precedent (including any covenants, compliance with
which constitutes a condition precedent) have been complied with.

     (b)  Each Officers' Certificate and Opinion of Counsel with respect to
compliance with a condition or covenant provided for in this Indenture shall
include:

          (1)  a statement that the person making such certificate or opinion
has read such covenant or condition;

          (2)  a brief statement as to the nature and scope of the examination
or investigation upon which the statements or opinions contained in such
certificate or opinion are based;

                                      -60-
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          (3)  a statement that, in the opinion of such person, he or she has
made such examination or investigation as is necessary to enable him or her to
express an informed opinion as to whether or not such covenant or condition has
been complied with; and

          (4)  a statement as to whether or not, in the opinion of such person,
such condition or covenant has been complied with;

PROVIDED HOWEVER, that with respect to matters of fact an Opinion of Counsel may
rely on an Officers' Certificate or certificates of public officials.

     SECTION 12.5.   RECORD DATE FOR VOTE, WAIVER OR CONSENT OF SECURITYHOLDERS.

     The Company (or, in the event deposits have been made pursuant to Section
10.1, the Trustee) may set a record date for purposes of determining the
identity of Holders entitled to vote, waive or consent to any action by such
vote, consent or waiver authorized or permitted under this Indenture, which
record date shall not be more than thirty (30) days prior to the date of the
commencement of solicitation of such action. Notwithstanding the provisions of
Section 11.4, if a record date is fixed, those persons who were Holders of
Securities at the close of business on such record date (or their duly
designated proxies), and only those persons, shall be entitled to take such
action by vote or consent or to revoke any vote or consent previously given,
whether or not such persons continue to be Holders after such record date.

     SECTION 12.6.   RULES BY TRUSTEE, PAYING AGENT, REGISTRAR AND CONVERSION
AGENT.

     The Trustee may make reasonable rules (not inconsistent with the terms of
this Indenture) for action by or at a meeting of Holders. Any Registrar, Paying
Agent or Conversion Agent may make reasonable rules for its functions.

     SECTION 12.7.   LEGAL HOLIDAYS.

     A "Legal Holiday" is a Saturday, Sunday or a day on which state or
federally chartered banking institutions in New York, New York and the state in
which the Corporate Trust Office is located are not required to be open. If a
payment date is a Legal Holiday, payment shall be made on the next succeeding
day that is not a Legal Holiday, and no interest shall accrue for the
intervening period. If a regular record date is a Legal Holiday, the record date
shall not be affected.

     SECTION 12.8.   GOVERNING LAW.

     This Indenture and the Securities shall be governed by, and construed in
accordance with, the laws of the State of New York, without regard to principles
of conflicts of laws.

     SECTION 12.9.   NO ADVERSE INTERPRETATION OF OTHER AGREEMENTS.

     This Indenture may not be used to interpret another indenture, loan or debt
agreement of the Company or a Subsidiary of the Company. Any such indenture,
loan or debt agreement may not be used to interpret this Indenture.

                                      -61-
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     SECTION 12.10.  NO RECOURSE AGAINST OTHERS.

     All liability described in paragraph 18 of the Securities of any director,
officer, employee or shareholder, as such, of the Company is waived and
released.

     SECTION 12.11.  SUCCESSORS.

     All agreements of the Company in this Indenture and the Securities shall
bind its successor. All agreements of the Trustee in this Indenture shall bind
its successor.

     SECTION 12.12.  MULTIPLE COUNTERPARTS.

     The parties may sign multiple counterparts of this Indenture. Each signed
counterpart shall be deemed an original, but all of them together represent the
same agreement.

     SECTION 12.13.  SEPARABILITY.

     In case any provisions in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

     SECTION 12.14.  TABLE OF CONTENTS, HEADINGS, ETC.

     The table of contents, cross-reference sheet and headings of the Articles
and Sections of this Indenture have been inserted for convenience of reference
only, are not to be considered a part hereof, and shall in no way modify or
restrict any of the terms or provisions hereof.

                            [SIGNATURE PAGE FOLLOWS]

                                      -62-
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     IN WITNESS WHEREOF, the parties hereto have hereunto set their hands as of
the date and year first above written.

                                       CYMER, INC.


                                       By:    /s/ NANCY J. BAKER
                                              ---------------------------------
                                       Name:
                                       Title:


                                       STATE STREET BANK AND TRUST
                                       COMPANY OF CALIFORNIA, N.A., AS TRUSTEE


                                       By:    /s/ SCOTT C. EMMONS
                                              ---------------------------------
                                       Name:  SCOTT C. EMMONS
                                       Title: VICE PRESIDENT

<Page>

                                    EXHIBIT A
                           [FORM OF FACE OF SECURITY]

     [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
THE DEPOSITORY TRUST COMPANY TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF
TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE
NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (AND ANY PAYMENT HEREON IS MADE
TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE OR OTHER
USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE
REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. THIS SECURITY IS A
GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND
IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY IS
EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE
DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE
INDENTURE AND, UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR
SECURITIES IN DEFINITIVE FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A
WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE
DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE
DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH
SUCCESSOR DEPOSITARY.](1)

     [THIS SECURITY (OR ITS PREDECESSOR) WAS ORIGINALLY ISSUED IN A TRANSACTION
EXEMPT FROM REGISTRATION UNDER THE UNITED STATES SECURITIES ACT OF 1933 (THE
"SECURITIES ACT"), AND THIS SECURITY AND THE SHARES OF COMMON STOCK ISSUABLE
UPON CONVERSION THEREOF MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED IN THE
ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE EXEMPTION THEREFROM. EACH
PURCHASER OF THIS SECURITY IS HEREBY NOTIFIED THAT THE SELLER OF THIS SECURITY
MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF SECTION 5 OF THE
SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.](2)

     [THE HOLDER OF THIS SECURITY AGREES FOR THE BENEFIT OF THE COMPANY THAT (A)
THIS SECURITY AND THE SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION THEREOF
MAY BE OFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED, ONLY (I) IN THE UNITED
STATES TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED
INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A
TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (II) OUTSIDE THE UNITED
STATES IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH REGULATIONS

----------

(1)  These paragraphs should be included only if the Security is a global
     Security.

(2)  These paragraphs to be included only if the Security is a Restricted
     Security.

                                       A-1
<Page>

UNDER THE SECURITIES ACT, (III) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER
THE SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER (IF AVAILABLE) OR (IV)
PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, IN
EACH OF CASES (I) THROUGH (IV) IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS
OF ANY STATE OF THE UNITED STATES, AND (B) THE HOLDER WILL, AND EACH SUBSEQUENT
HOLDER IS REQUIRED TO, NOTIFY ANY PURCHASER OF THIS SECURITY FROM IT OF THE
RESALE RESTRICTIONS REFERRED TO IN (A) ABOVE. IN ANY CASE THE HOLDER HEREOF WILL
NOT, DIRECTLY OR INDIRECTLY, ENGAGE IN ANY HEDGING TRANSACTION WITH REGARD TO
THE SECURITIES EXCEPT AS PERMITTED BY THE SECURITIES ACT.](2)

     [THE HOLDER OF THIS SECURITY IS ENTITLED TO THE BENEFITS OF A REGISTRATION
RIGHTS AGREEMENT (AS SUCH TERM IS DEFINED IN THE INDENTURE REFERRED TO ON THE
REVERSE HEREOF) AND, BY ITS ACCEPTANCE HEREOF, AGREES TO BE BOUND BY AND TO
COMPLY WITH THE PROVISIONS OF SUCH REGISTRATION RIGHTS AGREEMENT.](2)

----------

(2)  These paragraphs to be included only if the Security is a Transfer
     Restricted Security.

                                       A-2
<Page>

                                   CYMER, INC.

CUSIP:  232572AD9                                                       R-______

           3 1/2% CONVERTIBLE SUBORDINATED NOTES DUE FEBRUARY 15, 2009

     Cymer, Inc., a Nevada corporation (the "Company", which term shall include
any successor corporation under the Indenture referred to on the reverse
hereof), promises to pay to____________________________, or registered assigns,
the principal sum of _____________________________ Dollars ($__________) on
February 15, 2009 [or such greater or lesser amount as is indicated on the
Schedule of Exchanges of Notes on the other side of this Note].(3)

Interest Payment Dates: February 15 and August 15

Record Dates: February 1 and August 1

     This Note is convertible as specified on the other side of this Note.
Additional provisions of this Note are set forth on the other side of this Note.

                             SIGNATURE PAGE FOLLOWS

----------

(3)  This phrase should be included only if the Security is a global Security.

                                       A-3
<Page>

     IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.

                                       CYMER, INC.

                                       By:
                                          --------------------------------------
                                       Name:
                                       Title:

Attest:


----------------------------------
Name:
Title:

Dated:

Trustee's Certificate of Authentication:
This is one of the Securities referred
to in the within-mentioned Indenture.

STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A.,
as Trustee


By:


------------------------------------
Authorized Signatory

                                       A-4
<Page>

                       [FORM OF REVERSE SIDE OF SECURITY]

                                   CYMER, INC.
           3 1/2% CONVERTIBLE SUBORDINATED NOTES DUE FEBRUARY 15, 2009

1.   INTEREST

     Cymer, Inc., a Nevada corporation (the "Company", which term shall include
any successor corporation under the Indenture hereinafter referred to), promises
to pay interest on the principal amount of this Note at the rate of 3 1/2% per
annum. The Company shall pay interest semiannually on February 15 and August 15
of each year, commencing August 15, 2002. Interest on the Notes shall accrue
from the most recent date to which interest has been paid or, if no interest has
been paid, from February 15, 2002; PROVIDED, HOWEVER, that if there is not an
existing default in the payment of interest and if this Note is authenticated
between a record date referred to on the face hereof and the next succeeding
interest payment date, interest shall accrue from such interest payment date.
Interest will be computed on the basis of a 360-day year of twelve 30-day
months. Any reference herein to interest accrued or payable as of any date shall
include any Additional Interest accrued or payable on such date as provided in
the Registration Rights Agreement.

2.   METHOD OF PAYMENT

     The Company shall pay interest on this Note (except defaulted interest) to
the person who is the Holder of this Note at the close of business on February 1
or August 1, as the case may be, next preceding the related interest payment
date. The Holder must surrender this Note to a Paying Agent to collect payment
of principal. The Company will pay principal and interest in money of the United
States that at the time of payment is legal tender for payment of public and
private debts. The Company may, however, pay principal and interest in respect
of any Certificated Security by check or wire payable in such money; PROVIDED,
HOWEVER, that a Holder of a Certificated Security with an aggregate principal
amount in excess of $2,000,000 will be paid by wire transfer in immediately
available funds at the election of such Holder if such Holder has provided wire
transfer instructions to the Company and to a Paying Agent at least 5 Business
Days prior to the payment date. The Company may mail an interest check to the
Holder's registered address. Notwithstanding the foregoing, so long as this Note
is registered in the name of a Depositary or its nominee, all payments hereon
shall be made by wire transfer of immediately available funds to the account of
the Depositary or its nominee.

3.   PAYING AGENT, REGISTRAR AND CONVERSION AGENT

     Initially, State Street Bank and Trust Company of California, N.A. (the
"Trustee", which term shall include any successor trustee under the Indenture
hereinafter referred to) will act as Paying Agent, Registrar and Conversion
Agent. The Company may change any Paying Agent, Registrar or Conversion Agent
without notice to the Holder. The Company or any of its Subsidiaries may,
subject to certain limitations set forth in the Indenture, act as Paying Agent
or Registrar.

4.   INDENTURE, LIMITATIONS

     This Note is one of a duly authorized issue of Securities of the Company
designated as its 3 1/2% Convertible Subordinated Notes Due February 15, 2009
(the "Notes"), issued under an Indenture dated as of February 15, 2002 (together
with any supplemental indentures thereto, the "Indenture"), between the Company
and the Trustee. The terms of this Note include those stated in the Indenture
and those required by

                                       A-5
<Page>

or made part of the Indenture by reference to the Trust Indenture Act of 1939,
as amended, as in effect on the date of the Indenture. This Note is subject to
all such terms, and the Holder of this Note is referred to the Indenture and
said Act for a statement of them.

     The Notes are subordinated unsecured obligations of the Company limited to
$250,000,000 aggregate principal amount, subject to Section 2.2 of the
Indenture. The Indenture does not limit other debt of the Company, secured or
unsecured, including Senior Indebtedness.

5.   OPTIONAL AND PROVISIONAL REDEMPTION

     (a)  The Notes are subject to redemption, at any time on or after February
20, 2005, as a whole or from time to time in part, at the election of the
Company. The Redemption Prices (expressed as percentages of the principal
amount) are as follows for Notes redeemed during the periods set forth below:

<Table>
<Caption>
                             PERIOD                                                  REDEMPTION PRICE
     ---------------------------------------------------------------------------     ----------------
     <S>                                                                                  <C>
     February 20, 2005 through February 14, 2006................................          101.750%
     February 15, 2006 through February 14, 2007................................          101.167%
     February 15, 2007 through February 14, 2008................................          100.583%
     February 15, 2008 and thereafter...........................................          100.000%
</Table>

in each case together with accrued interest up to, but not including, the
Redemption Date; PROVIDED THAT if the Redemption Date falls after an interest
payment record date and on or before an interest payment date, then the interest
shall be payable to the Holders in whose names the Notes are registered at the
close of business on the interest payment record date.

     (b)  The Securities may be redeemed at the election of the Company, as a
whole or in part from time to time, at any time prior to February 20, 2005 (a
"Provisional Redemption"), at a redemption price equal to $1,000 per $1,000
principal amount of the Notes redeemed (such amount, together with the
Make-Whole Payment described below the "Provisional Redemption Price"), on the
date of redemption (the "Provisional Redemption Date") if (i) the Closing Price
of the Common Stock has exceeded 150% of the Conversion Price for at least 20
Trading Days within a period of any 30 consecutive Trading Days ending on the
Trading Day prior to the date of mailing of the notice of Provisional Redemption
(the "Notice Date"), and (ii) a shelf registration statement covering resales of
the Notes and the Common Stock issuable upon conversion thereof is effective and
available for use and is expected to remain effective and available for use for
the 30 days following the Provisional Redemption Date, unless registration is no
longer required.

     Upon any such Provisional Redemption, the Company shall make an additional
payment (the "Make-Whole Payment") with respect to the Notes called for
redemption to Holders in an amount equal to the total value of the aggregate
amount of the interest that would have been payable on the Notes from the last
day through which the interest was paid on the Notes (or February 15, 2002, if
no interest has been paid) through February 15, 2005. Payments made in Common
Stock will be valued at 97% of the average of the Closing Prices of the Common
Stock for the five consecutive Trading Days ending on the Trading Day
immediately preceding the Provisional Redemption Date. The Company may make the
Make-Whole Payment, at its option, either in cash or Common Stock (or a
combination of cash and Common Stock) and shall specify the type of
consideration for the Make-Whole Payment in the redemption notice; PROVIDED,
HOWEVER, that payment of the Make-Whole Payment may not be made in shares of
Common Stock, in whole or in part, unless (i) the shares of Common Stock to be
issued in payment of the Make-Whole Payment have been registered or qualified
for sale under applicable federal and state securities laws or may be issued to
the

                                       A-6
<Page>

Holder pursuant to an applicable exemption therefrom; (ii) the shares of Common
Stock to be issued in payment of the Make-Whole Payment are listed or quoted as
of the Provisional Redemption Date on a national securities exchange or on the
Nasdaq National Market; (iii) all shares of Common Stock that may be issued in
payment of the Make-Whole Payment shall be newly issued, shall, upon issue, be
duly authorized, validly issued, fully paid and non-assessable and shall be free
from preemptive or similar rights and free of any lien or adverse claim; and
(iv) a shelf registration covering resale of the shares of Common Stock to be
issued in payment of the Make-Whole Payment is effective and expected to remain
effective and available for use for the 30 days following the Provisional
Redemption Date to the extent that such shares of Common Stock to be issued in
payment of the Make-Whole Payment have not been registered or qualified for sale
under applicable federal and state securities laws. The Company shall make the
Make-Whole Payment on all Notes called for Provisional Redemption, including
those Notes converted into Common Stock between the Notice Date and the
Provisional Redemption Date. The Make-Whole Payment payable with respect to any
Note converted into Common Stock between the Notice Date and the Provisional
Redemption Date shall not be reduced to the extent any interest has accrued on
and is unpaid as of the date on which such securities are converted.

6.   NOTICE OF REDEMPTION

     Notice of redemption will be mailed by first-class mail at least 20 days
but not more than 60 days before the Redemption Date to each Holder of Notes to
be redeemed at its registered address. Notes in denominations larger than $1,000
may be redeemed in part, but only in whole multiples of $1,000. On and after the
Redemption Date, subject to the deposit with the Paying Agent of funds or, if
applicable with respect to the payment of the Make-Whole Payment, shares of
Common Stock sufficient to pay the Redemption Price or Provisional Redemption
Price, as the case may be, plus (other than in the case of a Provisional
Redemption) accrued interest, if any, accrued to, but excluding, the Redemption
Date, interest shall cease to accrue on Notes or portions of them called for
redemption.

7.   PURCHASE OF NOTES AT OPTION OF HOLDER UPON A CHANGE IN CONTROL

     At the option of the Holder and subject to the terms and conditions of the
Indenture, the Company shall become obligated to purchase all or any part
specified by the Holder (so long as the principal amount of such part is $1,000
or an integral multiple of $1,000 in excess thereof) of the Notes held by such
Holder on the date that is 35 Business Days after the occurrence of a Change in
Control, at a purchase price equal to 100% of the principal amount thereof
together with accrued and unpaid interest to, but excluding, the Change in
Control Purchase Date. The Holder shall have the right to withdraw any Change in
Control Purchase Notice (in whole or in a portion thereof that is $1,000 or an
integral multiple of $1,000 in excess thereof) at any time prior to the close of
business on the Business Day next preceding the Change in Control Purchase Date
by delivering a written notice of withdrawal to the Paying Agent in accordance
with the terms of the Indenture. At the option of the Company, the Change in
Control Purchase Price may be paid in cash or, subject to the fulfillment by the
Company of the conditions set forth in Section 3.8(d) of the Indenture, by
delivery of shares of Common Stock, or a combination of cash and Common Stock,
having a fair market value equal to the Change in Control Purchase Price;
PROVIDED, THAT subject to the terms of the Indenture, the Change in Control
Purchase Price may be paid in shares of common stock of the Company's Parent.

8.   CONVERSION

     A Holder of a Note may convert the principal amount of such Note (or any
portion thereof equal to $1,000 or any integral multiple of $1,000 in excess
thereof) into shares of Common Stock at any time prior to

                                       A-7
<Page>

the close of business on February 15, 2009, at the Conversion Price then in
effect; PROVIDED, HOWEVER, that if the Note is called for redemption or subject
to purchase upon a Change in Control, the conversion right will terminate at the
close of business on the Business Day immediately preceding the Redemption Date
or the Change in Control Purchase Date, as the case may be, for such Note or
such earlier date as the Holder presents such Note for redemption or purchase
(unless the Company shall default in making the applicable redemption payment or
Change in Control Purchase Price when due, in which case the conversion right
shall terminate at the close of business on the date such default is cured and
such Note is redeemed or purchased, as the case may be).

     The initial Conversion Price is $50 per share, subject to adjustment under
certain circumstances as provided in the Indenture. The number of shares of
Common Stock issuable upon conversion of a Note is determined by dividing the
principal amount of the Note or portion thereof surrendered for conversion by
the Conversion Price in effect on the Conversion Date. No fractional shares will
be issued upon conversion; in lieu thereof, an amount will be paid in cash based
upon the Closing Price (as defined in the Indenture) of the Common Stock on the
Trading Day immediately prior to the Conversion Date.

     To convert a Note, a Holder must (a) complete and manually sign the
conversion notice set forth below and deliver such notice to a Conversion Agent,
(b) surrender the Note to a Conversion Agent, (c) furnish appropriate
endorsements and transfer documents if required by a Registrar or a Conversion
Agent, and (d) pay any transfer or similar tax, if required. Notes so
surrendered for conversion (in whole or in part) during the period from the
close of business on any regular interest payment record date to the opening of
business on the next succeeding interest payment date (excluding Notes or
portions thereof called for redemption or presented for purchase upon a Change
in Control on a Redemption Date or Change in Control Purchase Date, as the case
may be, during the period beginning at the close of business on a regular
interest payment record date and ending at the opening of business on the first
Business Day after the next succeeding interest payment date, or if such
interest payment date is not a Business Day, the second such Business Day) shall
also be accompanied by payment in funds acceptable to the Company of an amount
equal to the interest payable on such interest payment date on the principal
amount of such Note then being converted, and such interest shall be payable to
such registered Holder notwithstanding the conversion of such Note, subject to
the provisions of this Indenture relating to the payment of defaulted interest
by the Company. If the Company defaults in the payment of interest payable on
such interest payment date, the Company shall promptly repay such funds to such
Holder. A Holder may convert a portion of a Note equal to $1,000 or any integral
multiple thereof.

     A Note in respect of which a Holder had delivered a Change in Control
Purchase Notice exercising the option of such Holder to require the Company to
purchase such Note may be converted only if the Change in Control Purchase
Notice is withdrawn in accordance with the terms of the Indenture.

9.   CONVERSION ARRANGEMENT ON CALL FOR REDEMPTION

     Any Notes called for redemption, unless surrendered for conversion before
the close of business on the Business Day immediately preceding the Redemption
Date, may be deemed to be purchased from the Holders of such Notes at an amount
not less than the Redemption Price or Provisional Redemption Price, as the case
may be, together with (other than in the case of a Provisional Redemption)
interest accrued to, but not including, the Redemption Date, by one or more
investment banks or other purchasers who may agree with the Company to purchase
such Notes from the Holders, to convert them into Common Stock of the Company
and to make payment for such Notes to the Paying Agent in trust for such
Holders.

                                       A-8
<Page>

10.  SUBORDINATION

     The indebtedness evidenced by the Notes is, to the extent and in the manner
provided in the Indenture, subordinate and junior in right of payment to the
prior payment in full of all Senior Indebtedness of the Company. Any Holder by
accepting this Note agrees to and shall be bound by such subordination
provisions and authorizes the Trustee to give them effect. In addition to all
other rights of Senior Indebtedness described in the Indenture, the Senior
Indebtedness shall continue to be Senior Indebtedness and entitled to the
benefits of the subordination provisions irrespective of any amendment,
modification or waiver of any terms of any instrument relating to the Senior
Indebtedness or any extension or renewal of the Senior Indebtedness.

11.  DENOMINATIONS, TRANSFER, EXCHANGE

     The Notes are in registered form without coupons in denominations of $1,000
and integral multiples of $1,000. A Holder may register the transfer of or
exchange Notes in accordance with the Indenture. The Registrar may require a
Holder, among other things, to furnish appropriate endorsements and transfer
documents and to pay any taxes or other governmental charges that may be imposed
in relation thereto by law or permitted by the Indenture.

12.  PERSONS DEEMED OWNERS

     The Holder of a Note may be treated as the owner of it for all purposes.

13.  UNCLAIMED MONEY

     If money for the payment of principal or interest remains unclaimed for two
years after a right to such money has matured or, if the Company has delivered
to the Trustee and each Paying Agent a certificate to the effect that applicable
escheat laws have been amended and has requested that the Trustee deliver such
funds to the Company at an earlier date, then the Trustee and each Paying Agent
shall deliver such funds to the Company in accordance with such request. After
that, Holders entitled to money must look to the Company for payment unless an
abandoned property law designates another person.

14.  AMENDMENT, SUPPLEMENT AND WAIVER

     Subject to certain exceptions, the Indenture or the Notes may be amended or
supplemented with the consent of the Holders of at least a majority in aggregate
principal amount of the Notes then outstanding, and an existing default or Event
of Default and its consequences or compliance with any provision of the
Indenture or the Notes may be waived in a particular instance with the consent
of the Holders of a majority in aggregate principal amount of the Notes then
outstanding. Without the consent of or notice to any Holder, the Company and the
Trustee may amend or supplement the Indenture or the Notes to, among other
things, cure any ambiguity, defect or inconsistency or make any other change
that does not adversely affect the rights of any Holder.

15.  SUCCESSOR ENTITY

     When a successor entity assumes all the obligations of its predecessor
under the Notes and the Indenture in accordance with the terms and conditions of
the Indenture, the predecessor entity will (except in certain circumstances
specified in the Indenture) be released from those obligations.

                                       A-9
<Page>

16.  DEFAULTS AND REMEDIES

     Under the Indenture, an Event of Default shall occur if: (i) the Company
defaults in the payment of any interest or Additional Interest on any Notes when
the same becomes due and payable and the default continues for a period of 30
days, whether or not prohibited by the subordination provisions of the
Indenture; (ii) the Company defaults in payment of any principal (including,
without limitation, any premium, if any) on the Notes when the same becomes due
and payable, whether or not prohibited by the subordination provisions of the
Indenture; (iii) the Company fails for 60 days after notice to it to comply with
any of its other covenants contained in the Indenture or the Notes; (iv) the
Company defaults in the payment of the purchase price of any Note when the same
becomes due and payable, whether or not prohibited by the subordination
provisions of the Indenture; (v) a default in the payment of certain
indebtedness of the Company or a Significant Subsidiary (all or substantially
all of the outstanding voting securities of which are owned, directly or
indirectly, by the Company) occurs as provided in Section 8.1 of the Indenture;
and (vi) certain events of bankruptcy, insolvency or reorganization of the
Company or any Significant Subsidiary occurs as provided in Section 8.1 of the
Indenture. If an Event of Default (other than as a result of certain events of
bankruptcy, insolvency or reorganization of the Company as provided in Section
8.1 of the Indenture) occurs and is continuing, the Trustee may, by notice to
the Company, or the Holders of at least 25% in aggregate principal amount of the
Notes then outstanding may declare all unpaid principal of the Notes outstanding
on the date of acceleration to be due and payable immediately, all as and to the
extent provided in the Indenture. If an Event of Default occurs as a result of
certain events of bankruptcy, insolvency or reorganization of the Company, all
unpaid principal of the Notes then outstanding shall become due and payable
immediately without any declaration or other act on the part of the Trustee or
any Holder, all as and to the extent provided in the Indenture. Holders may not
enforce the Indenture or the Notes except as provided in the Indenture. The
Trustee may require indemnity satisfactory to it before it enforces the
Indenture or the Notes. Subject to certain limitations set forth in the
Indenture, Holders of a majority in aggregate principal amount of the Notes then
outstanding may direct the Trustee in its exercise of any trust or power. The
Trustee may withhold from Holders notice of any continuing default (except a
default in payment of principal or interest) if it determines that withholding
notice is in their interests. The Company is required to file periodic reports
with the Trustee as to the absence of default.

17.  TRUSTEE DEALINGS WITH THE COMPANY

     State Street Bank and Trust Company of California, N.A., the Trustee under
the Indenture, in its individual or any other capacity, may make loans to,
accept deposits from and perform services for the Company or an Affiliate of the
Company, and may otherwise deal with the Company or an Affiliate of the Company,
as if it were not the Trustee.

18.  NO RECOURSE AGAINST OTHERS

     A director, officer, employee or shareholder, as such, of the Company shall
not have any liability for any obligations of the Company under the Notes or the
Indenture nor for any claim based on, in respect of or by reason of such
obligations or their creation. The Holder of this Note by accepting this Note
waives and releases all such liability. The waiver and release are part of the
consideration for the issuance of this Note.

19.  AUTHENTICATION

     This Note shall not be valid until the Trustee or an authenticating agent
manually signs the certificate of authentication on the other side of this Note.

                                      A-10
<Page>

20.  ABBREVIATIONS AND DEFINITIONS

     Customary abbreviations may be used in the name of the Holder or an
assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the
entireties), JT TEN (= joint tenants with right of survivorship and not as
tenants in common), CUST (= Custodian) and UGMA (= Uniform Gifts to Minors Act).

     All terms defined in the Indenture and used in this Note but not
specifically defined herein are defined in the Indenture and are used herein as
so defined.

21.  INDENTURE TO CONTROL; GOVERNING LAW

     In the case of any conflict between the provisions of this Note and the
Indenture, the provisions of the Indenture shall control. This Note shall be
governed by, and construed in accordance with, the laws of the State of New
York, without regard to principles of conflicts of law.

     The Company will furnish to any Holder, upon written request and without
charge, a copy of the Indenture. Requests may be made to: Cymer, Inc., 16750 Via
Del Campo Court, San Diego, California 92127, Attention: General Counsel.

                                      A-11
<Page>

                                 ASSIGNMENT FORM

     To assign this Note, fill in the form below:

     I or we assign and transfer this Note to


--------------------------------------------------------------------------------
                  (Insert assignee's soc. sec. or tax I.D. no.)


--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
              (Print or type assignee's name, address and zip code)

and irrevocably appoint


--------------------------------------------------------------------------------

agent to transfer this Note on the books of the Company. The agent may
substitute another to act for him or her.


                                       Your Signature:

Date:
      -----------------------------    -----------------------------------------
                                       (Sign exactly as your name appears on the
                                       other side of this Note)

*Signature guaranteed by:


By:
    -------------------------------

     *    The signature must be guaranteed by an institution which is a member
          of one of the following recognized signature guaranty programs: (i)
          the Securities Transfer Agent Medallion Program (STAMP); (ii) the New
          York Stock Exchange Medallion Program (MSP); (iii) the Stock Exchange
          Medallion Program (SEMP); or (iv) such other guaranty program
          acceptable to the Trustee.

                                      A-12
<Page>

                                CONVERSION NOTICE

     To convert this Note into Common Stock of the Company, check the box: / /

     To convert only part of this Note, state the principal amount to be
converted (must be $1,000 or an integral multiple of $1,000): $____________.

     If you want the stock certificate made out in another person's name, fill
in the form below:


--------------------------------------------------------------------------------
                  (Insert assignee's soc. sec. or tax I.D. no.)


--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
              (Print or type assignee's name, address and zip code)


                                       Your Signature:

Date:
     -----------------------------     -----------------------------------------
                                       (Sign exactly as your name appears on the
                                       other side of this Note)

*Signature guaranteed by:

By:
    ------------------------------

     *    The signature must be guaranteed by an institution which is a member
          of one of the following recognized signature guaranty programs: (i)
          the Securities Transfer Agent Medallion Program (STAMP); (ii) the New
          York Stock Exchange Medallion Program (MSP); (iii) the Stock Exchange
          Medallion Program (SEMP); or (iv) such other guaranty program
          acceptable to the Trustee.

                                      A-13
<Page>

                           OPTION TO ELECT REPURCHASE
                            UPON A CHANGE IN CONTROL

To:  Cymer, Inc.

     The undersigned registered owner of this Security hereby irrevocably
acknowledges receipt of a notice from Cymer, Inc. (the "Company") as to the
occurrence of a Change in Control with respect to the Company and requests and
instructs the Company to redeem the entire principal amount of this Security, or
the portion thereof (which is $1,000 or an integral multiple thereof) below
designated, in accordance with the terms of the Indenture referred to in this
Security at the Change in Control Purchase Price, together with accrued interest
to, but excluding, such date, to the registered Holder hereof.

     If the Company notifies you that it intends to pay the Change in Control
Purchase Price, in whole or in part, in Common Stock and you want the stock
certificate made out in another person's name, fill in the form below:

--------------------------------------------------------------------------------
                  (Insert assignee's soc. sec. or tax I.D. no.)


--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
              (Print or type assignee's name, address and zip code)

Dated:
       ------------------              -----------------------------------------

                                       -----------------------------------------
                                       Signature(s)

                                       Signature(s) must be guaranteed by a
                                       qualified guarantor institution with
                                       membership in an approved signature
                                       guarantee program pursuant to Rule
                                       17Ad-15 under the Securities Exchange Act
                                       of 1934.

                                       -----------------------------------------
                                       Signature Guaranty

Principal amount to be redeemed
(in an integral multiple of $1,000, if less than all):


----------

NOTICE: The signature to the foregoing Election must correspond to the Name as
written upon the face of this Security in every particular, without alteration
or any change whatsoever.

                                      A-14
<Page>

                        SCHEDULE OF EXCHANGES OF NOTES(4)

     The following exchanges, redemptions, repurchases or conversions of a part
of this global Note have been made:

<Table>
<Caption>
    PRINCIPAL AMOUNT
   OF THIS GLOBAL NOTE         AUTHORIZED                                     AMOUNT OF
     FOLLOWING SUCH           SIGNATORY OF      AMOUNT OF DECREASE IN        INCREASE IN
     DECREASE DATE             SECURITIES          PRINCIPAL AMOUNT        PRINCIPAL AMOUNT
OF EXCHANGE (OR INCREASE)      CUSTODIAN         OF THIS GLOBAL NOTE     OF THIS GLOBAL NOTE
-------------------------    -------------      ---------------------    -------------------
<S>                           <C>               <C>                       <C>
</Table>

----------

(4)  This schedule should be included only if the Security is a global Security.
     A-15

<Page>

            CERTIFICATE TO BE DELIVERED UPON EXCHANGE OR REGISTRATION
                OF TRANSFER OF TRANSFER RESTRICTED SECURITIES(5)

Re:  3 1/2% Convertible Subordinated Notes Due February 15, 2009 (the "Notes")
     of Cymer, Inc.

     This certificate relates to $_______ principal amount of Notes owned in
(check applicable box)

     / / book-entry or / / definitive form by ___________________ (the
"Transferor").

     The Transferor has requested a Registrar or the Trustee to exchange or
register the transfer of such Notes.

     In connection with such request and in respect of each such Note, the
Transferor does hereby certify that the Transferor is familiar with transfer
restrictions relating to the Notes as provided in Section 2.12 of the Indenture
dated as of February 15, 2002, between Cymer, Inc., and State Street Bank and
Trust Company of California, N.A., as trustee (the "Indenture"), and the
transfer of such Note is being made pursuant to an effective registration
statement under the Securities Act of 1933, as amended (the "Securities Act")
(check applicable box) or the transfer or exchange, as the case may be, of such
Note does not require registration under the Securities Act because (check
applicable box):

     / /  Such Note is being transferred pursuant to an effective registration
          statement under the Securities Act.

     / /  Such Note is being acquired for the Transferor's own account, without
          transfer.

     / /  Such Note is being transferred to the Company or a Subsidiary (as
          defined in the Indenture) of the Company.

     / /  Such Note is being transferred to a person the Transferor reasonably
          believes is a "qualified institutional buyer" (as defined in Rule 144A
          or any successor provision thereto ("Rule 144A") under the Securities
          Act) that is purchasing for its own account or for the account of a
          "qualified institutional buyer", in each case to whom notice has been
          given that the transfer is being made in reliance on such Rule 144A,
          and in each case in reliance on Rule 144A.

     / /  Such Note is being transferred to a non-U.S. person in an offshore
          transaction in compliance with Regulation S under the Securities Act.

     / /  Such Note is being transferred pursuant to and in compliance with an
          exemption from the registration requirements under the Securities Act
          in accordance with Rule 144 (or any successor thereto) ("Rule 144")
          under the Securities Act.

----------

(5)  This certificate should only be included if this Security is a Transfer
     Restricted Security.

                                      A-16
<Page>

     / /  Such Note is being transferred pursuant to and in compliance with an
          exemption from the registration requirements of the Securities Act
          (other than an exemption referred to above) and as a result of which
          such Note will, upon such transfer, cease to be a "restricted
          security" within the meaning of Rule 144 under the Securities Act.

     The Transferor acknowledges and agrees that, if the transferee will hold
any such Notes in the form of beneficial interests in a global Note which is a
"restricted security" within the meaning of Rule 144 under the Securities Act,
then such transfer can only be made pursuant to Rule 144A or Regulation S under
the Securities Act and such transferee must be a "qualified institutional buyer"
(as defined in Rule 144A).


Date:
       --------------------------------         --------------------------------
                                                (Insert Name of Transferor)

                                      A-17