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                                                                    EXHIBIT 4.21

                                                                  EXECUTION COPY

                                  $200,000,000

                          ON SEMICONDUCTOR CORPORATION

                    SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

                       12% SENIOR SECURED NOTES DUE 2010

                          REGISTRATION RIGHTS AGREEMENT

                                                                   March 3, 2003

Salomon Smith Barney Inc.
Credit Suisse First Boston LLC
J.P.Morgan Securities Inc.
Morgan Stanley & Co. Incorporated
c/o Salomon Smith Barney Inc.
    388 Greenwich Street
    New York, New York 10013

Dear Sirs:

         ON Semiconductor Corporation, a Delaware corporation (the "HOLDING
COMPANY"), and Semiconductor Components Industries, LLC, a Delaware limited
liability Company ("SCI LLC" and, together with the Holding Company, the
"ISSUERS") propose to issue and sell to Salomon Smith Barney Inc., Credit Suisse
First Boston LLC, J.P. Morgan Securities Inc. and Morgan Stanley & Co.
Incorporated, (collectively, the "INITIAL PURCHASERS"), upon the terms set forth
in a purchase agreement dated February 26, 2003 (the "PURCHASE AGREEMENT"),
$200,000,000 aggregate principal amount of their 12% Senior Secured Notes due
2010 (the "INITIAL SECURITIES") to be jointly and severally guaranteed on a
senior secured basis by SCG (Malaysia SMP) Holding Corporation, SCG (Czech)
Holding Corporation, SCG (China) Holding Corporation, Semiconductor Components
Industries Puerto Rico, Inc., SCG International Development LLC, Semiconductor
Components Industries of Rhode Island, Inc. and Semiconductor Components
Industries International of Rhode Island, Inc. (the "GUARANTORS" and,
collectively with the Issuers, the "COMPANY"). All obligations and agreements of
the Company in this Agreement shall be the joint and several obligations and
agreements of each of the Issuers and the Guarantors. The Initial Securities
will be issued pursuant to an Indenture, dated as of the date hereof (the
"INDENTURE"), among the Issuers, the Guarantors and Wells Fargo Bank Minnesota,
National Association, a national banking association, as trustee (the
"TRUSTEE"). As an inducement to the Initial Purchasers to enter into the
Purchase Agreement, the Company agrees with the Initial Purchasers, for the
benefit of the Initial Purchasers and the holders of the Securities (as defined
below) (collectively the "HOLDERS"), as follows:

         1. Registered Exchange Offer. Unless not permitted by applicable law
(after the Company has complied with the ultimate paragraph of this Section 1),
the Company shall prepare and, not later than 120 days (such 120th day being a
"FILING DEADLINE") after the date on which the Initial Purchasers purchase the
Initial Securities pursuant to the Purchase Agreement (the "CLOSING DATE"), file
with the Securities and Exchange Commission (the "COMMISSION") a registration
statement (the "EXCHANGE OFFER REGISTRATION STATEMENT") on an appropriate form
under the Securities Act of 1933, as amended (the "SECURITIES ACT"), with
respect to a proposed offer (the "REGISTERED EXCHANGE OFFER") to the Holders of
Transfer Restricted Securities (as defined in Section 6 hereof), who are not
prohibited by any law or policy of the Commission from participating in the
Registered Exchange Offer, to issue and deliver to such Holders, in exchange for
the Initial Securities, a like aggregate principal amount of debt securities of
the Company issued under the Indenture, identical in all material respects to
the Initial Securities and registered under the Securities Act (the "EXCHANGE
SECURITIES"). The Company shall use its reasonable best efforts to (i) cause
such Exchange Offer Registration Statement to be declared effective under the
Securities Act within 270 days after the Closing Date (such 270th day being an
"EFFECTIVENESS DEADLINE") and (ii) keep the Exchange Offer Registration
Statement effective for not less than 30 days (or longer, if required by
applicable law) after the

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date notice of the Registered Exchange Offer is mailed to the Holders (such
period being called the "EXCHANGE OFFER REGISTRATION PERIOD").

         If the Company commences the Registered Exchange Offer, the Company (i)
will be entitled to consummate the Registered Exchange Offer 30 days after such
commencement (provided that the Company has accepted all the Initial Securities
theretofore validly tendered in accordance with the terms of the Registered
Exchange Offer) and (ii) will be required to consummate the Registered Exchange
Offer no later than 300 days after the Closing Date (such 300th day being the
"CONSUMMATION DEADLINE").

         Following the declaration of the effectiveness of the Exchange Offer
Registration Statement, the Company shall as promptly as is practicable commence
the Registered Exchange Offer, it being the objective of such Registered
Exchange Offer to enable each Holder of Transfer Restricted Securities electing
to exchange the Initial Securities for Exchange Securities (assuming that such
Holder is not an affiliate of the Company within the meaning of the Securities
Act, acquires the Exchange Securities in the ordinary course of such Holder's
business and has no arrangements with any person to participate in the
distribution of the Exchange Securities and is not prohibited by any law or
policy of the Commission from participating in the Registered Exchange Offer) to
trade such Exchange Securities from and after their receipt without any
limitations or restrictions under the Securities Act and without material
restrictions under the securities laws of the several states of the United
States.

         The Company acknowledges that, pursuant to current interpretations by
the Commission's staff of Section 5 of the Securities Act, in the absence of an
applicable exemption therefrom, (i) each Holder that is a broker-dealer electing
to exchange Initial Securities, acquired for its own account as a result of
market making activities or other trading activities, for Exchange Securities
(an "EXCHANGING DEALER"), is required to deliver a prospectus containing the
information set forth in (a) Annex A hereto on the cover, (b) Annex B hereto in
the "Exchange Offer Procedures" section and the "Purpose of the Exchange Offer"
section, and (c) Annex C hereto in the "Plan of Distribution" section of such
prospectus in connection with a sale of any such Exchange Securities received by
such Exchanging Dealer pursuant to the Registered Exchange Offer and (ii) an
Initial Purchaser that elects to sell Securities (as defined below) acquired in
exchange for Initial Securities constituting any portion of an unsold allotment,
is required to deliver a prospectus containing the information required by Items
507 or 508 of Regulation S-K under the Securities Act, as applicable, in
connection with such sale.

         The Company shall use its reasonable best efforts to keep the Exchange
Offer Registration Statement effective and to amend and supplement the
prospectus contained therein, in order to permit such prospectus to be lawfully
delivered by all persons subject to the prospectus delivery requirements of the
Securities Act for such period of time as such persons must comply with such
requirements in order to resell the Exchange Securities; provided, however, that
(i) in the case where such prospectus and any amendment or supplement thereto
must be delivered by an Exchanging Dealer or an Initial Purchaser, such period
shall be the lesser of 180 days and the date on which all Exchanging Dealers and
the Initial Purchasers have sold all Exchange Securities held by them (unless
such period is extended pursuant to Section 3(j) below) and (ii) the Company
shall make such prospectus and any amendment or supplement thereto available to
any broker-dealer for use in connection with any resale of any Exchange
Securities for a period of not less than 180-days after the consummation of the
Registered Exchange Offer.

         If, upon consummation of the Registered Exchange Offer, any Initial
Purchaser holds Initial Securities acquired by it as part of its initial
distribution, the Company, simultaneously with the delivery of the Exchange
Securities pursuant to the Registered Exchange Offer, shall issue and deliver to
such Initial Purchaser upon the written request of such Initial Purchaser, in
exchange (the "PRIVATE EXCHANGE") for the Initial Securities held by such
Initial Purchaser, a like principal amount of debt securities of the Company
issued under the Indenture and identical in all material respects to the Initial
Securities (the "PRIVATE EXCHANGE SECURITIES"). The Initial Securities, the
Exchange Securities and the Private Exchange Securities are herein collectively
called the "SECURITIES".

         In connection with the Registered Exchange Offer, the Company shall:

                  (a) mail to each Holder a copy of the prospectus forming part
         of the Exchange Offer Registration Statement, together with an
         appropriate letter of transmittal and related documents;

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                  (b) keep the Registered Exchange Offer open for not less than
         30 days (or longer, if required by applicable law) after the date
         notice thereof is mailed to the Holders (it being understood that the
         Company may extend a Registered Exchange Offer or Private Exchange
         beyond the time at which it is scheduled to expire (either at the end
         of the originally scheduled offer period or at the end of a
         subsequently scheduled extension of such period), by issuing a press
         release announcing such extension and otherwise complying with
         applicable law);

                  (c) utilize the services of a depositary for the Registered
         Exchange Offer with an address in the Borough of Manhattan, The City of
         New York, which may be the Trustee or an affiliate of the Trustee;

                  (d) permit Holders to withdraw tendered Securities at any time
         prior to the close of business, New York time, on the last business day
         on which the Registered Exchange Offer shall remain open (except that,
         in the case where the Registered Exchange Offer or Private Exchange is
         extended beyond the time at which it is scheduled to expire (either at
         the end of the originally scheduled offer period or at the end of a
         subsequently scheduled extension of such period), those Securities that
         are validly tendered and not withdrawn pursuant to such Registered
         Exchange Offer or Private Exchange, as the case may be, as of such time
         may be accepted for exchange and may not subsequently be withdrawn by
         the tendering Holders); and

                  (e) otherwise comply with all applicable laws.

         As soon as practicable after the close of the Registered Exchange Offer
or the Private Exchange, as the case may be, the Company shall:

                  (x) accept for exchange all the Securities validly tendered
         and not withdrawn pursuant to the Registered Exchange Offer and the
         Private Exchange;

                  (y) deliver to the Trustee for cancellation all the Initial
         Securities so accepted for exchange; and

                  (z) cause the Trustee to authenticate and deliver promptly to
         each Holder of the Initial Securities, Exchange Securities or Private
         Exchange Securities, as the case may be, equal in principal amount to
         the Initial Securities of such Holder so accepted for exchange.

Notwithstanding the foregoing, it is understood that, in the case where the
Registered Exchange Offer or Private Exchange is extended beyond the time at
which it is scheduled to expire (either at the end of the originally scheduled
offer period or at the end of a subsequently scheduled extension of such
period), those Securities that are validly tendered and not withdrawn pursuant
to such Registered Exchange Offer or Private Exchange, as the case may be, as of
such time may be accepted for exchange and may not subsequently be withdrawn by
the tendering Holders.

         The Indenture will provide that the Exchange Securities will not be
subject to the transfer restrictions set forth in the Indenture and that all the
Securities will vote and consent together on all matters as one class and that
none of the Securities will have the right to vote or consent as a class
separate from one another on any matter.

         Interest on each Exchange Security and Private Exchange Security issued
pursuant to the Registered Exchange Offer and in the Private Exchange will
accrue from the last interest payment date on which interest was paid on the
Initial Securities surrendered in exchange therefor or, if no interest has been
paid on the Initial Securities, from the date of original issue of the Initial
Securities.

         Each Holder participating in the Registered Exchange Offer shall be
required to represent to the Company that, at the time such Holder's tendered
Securities are accepted for exchange, (i) any Exchange Securities received by
such Holder will be acquired in the ordinary course of business, (ii) such
Holder will have no arrangements or understanding with any person to participate
in the distribution of the Securities or the Exchange Securities within the
meaning of the Securities Act, (iii) such Holder is not an "affiliate," as
defined in Rule 405 of the Securities Act, of the Company or if it is an
affiliate, such Holder will comply with the registration and prospectus delivery
requirements of the Securities Act to the extent applicable, (iv) if such Holder
is not a broker-dealer, that it is not engaged in, and does not intend to engage
in, the distribution of the Exchange Securities and (v) if such Holder is a

<PAGE>

broker-dealer, that it will receive Exchange Securities for its own account in
exchange for Initial Securities that were acquired as a result of market-making
activities or other trading activities and that it will be required to
acknowledge that it will deliver a prospectus in connection with any resale of
such Exchange Securities.

         Notwithstanding any other provisions hereof, the Company will ensure
that (i) any Exchange Offer Registration Statement and any amendment thereto and
any prospectus forming part thereof and any supplement thereto complies in all
material respects with the Securities Act and the rules and regulations
thereunder, (ii) any Exchange Offer Registration Statement and any amendment
thereto does not, when it becomes effective, contain an untrue statement of a
material fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein not misleading and (iii) any prospectus
forming part of any Exchange Offer Registration Statement, and any supplement to
such prospectus, does not include an untrue statement of a material fact or omit
to state a material fact required to be stated therein or necessary in order to
make the statements therein, in the light of the circumstances under which they
were made, not misleading.

         If following the date hereof there has been announced a change in
Commission policy with respect to exchange offers that in the reasonable opinion
of counsel to the Company raises a substantial question as to whether the
Registered Exchange Offer is permitted by applicable federal law, the Company
will seek a no-action letter or other favorable decision from the Commission
allowing the Company to consummate the Registered Exchange Offer. The Company
will pursue the issuance of such a decision to the Commission staff level. In
connection with the foregoing, the Company will take all such other commercially
reasonable actions as may be requested by the Commission in connection with the
issuance of such decision, including without limitation (i) participating in
telephonic conferences with the Commission, (ii) delivering to the Commission
staff an analysis prepared by counsel to the Company setting forth the legal
bases, if any, upon which such counsel has concluded that the Registered
Exchange Offer should be permitted and (iii) diligently pursuing a resolution
(which need not be favorable) by the Commission staff.

         2. Shelf Registration. If, (i) because of any change in law or in
applicable interpretations thereof by the staff of the Commission, the Company
is not permitted to effect a Registered Exchange Offer, as contemplated by
Section 1 hereof, (ii) the Registered Exchange Offer is not consummated by the
300th day after the Closing Date, (iii) any Initial Purchaser so requests with
respect to the Initial Securities (or the Private Exchange Securities) not
eligible to be exchanged for Exchange Securities in the Registered Exchange
Offer and held by it following consummation of the Registered Exchange Offer or
(iv) any Holder (other than an Exchanging Dealer) is not eligible to participate
in the Registered Exchange Offer or, in the case of any Holder (other than an
Exchanging Dealer) that participates in the Registered Exchange Offer, such
Holder does not receive freely tradeable Exchange Securities on the date of the
exchange and any such Holder so requests, the Company shall take the following
actions (the date on which any of the conditions described in the foregoing
clauses (i) through (iv) occur, including in the case of clauses (iii) or (iv)
the receipt of the required notice, being a "TRIGGER DATE"):

                  (a) The Company shall promptly (but in no event more than 60
         days after the Trigger Date (such 60th day being a "FILING DEADLINE"))
         file with the Commission and thereafter use its reasonable best efforts
         to cause to be declared effective no later than 270 days after the
         Trigger Date (such 270th day being an "EFFECTIVENESS DEADLINE") a
         registration statement (the "SHELF REGISTRATION STATEMENT" and,
         together with the Exchange Offer Registration Statement, a
         "REGISTRATION STATEMENT") on an appropriate form under the Securities
         Act relating to the offer and sale of the Transfer Restricted
         Securities by the Holders thereof from time to time in accordance with
         the methods of distribution set forth in the Shelf Registration
         Statement and Rule 415 under the Securities Act (hereinafter, the
         "SHELF REGISTRATION"); provided, however, that no Holder (other than an
         Initial Purchaser) shall be entitled to have the Securities held by it
         covered by such Shelf Registration Statement unless such Holder agrees
         in writing to be bound by all the provisions of this Agreement
         applicable to such Holder.

                  (b) The Company shall use its reasonable best efforts to keep
         the Shelf Registration Statement continuously effective in order to
         permit the prospectus included therein to be lawfully delivered by the
         Holders of the relevant Securities, for a period of two years (or for
         such longer period if extended pursuant to Section 3(j) below) after
         the Closing Date or such shorter period that will terminate when all
         the Securities covered by the Shelf Registration Statement (i) have
         been sold pursuant thereto or (ii) are no longer restricted securities
         (as defined in Rule 144 under the Securities Act, or any successor rule
         thereof).

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                  (c) Notwithstanding any other provisions of this Agreement to
         the contrary, the Company shall cause the Shelf Registration Statement
         and the related prospectus and any amendment or supplement thereto, as
         of the effective date of the Shelf Registration Statement, amendment or
         supplement, (i) to comply in all material respects with the applicable
         requirements of the Securities Act and the rules and regulations of the
         Commission and (ii) not to contain any untrue statement of a material
         fact or omit to state a material fact required to be stated therein or
         necessary in order to make the statements therein, in light of the
         circumstances under which they were made, not misleading.

         3. Registration Procedures. In connection with any Shelf Registration
contemplated by Section 2 hereof and, to the extent applicable, any Registered
Exchange Offer contemplated by Section 1 hereof, the following provisions shall
apply:

                  (a) The Company shall (i) furnish to each Initial Purchaser,
         prior to the filing thereof with the Commission, a copy of the
         Registration Statement and each amendment thereof and each supplement,
         if any, to the prospectus included therein and, in the event that an
         Initial Purchaser (with respect to any portion of an unsold allotment
         from the original offering) is participating in the Registered Exchange
         Offer or the Shelf Registration Statement, the Company shall use its
         reasonable best efforts to reflect in each such document, when so filed
         with the Commission, such comments as such Initial Purchaser reasonably
         may propose; (ii) include the information set forth in Annex A hereto
         on the cover, in Annex B hereto in the "Exchange Offer Procedures"
         section and the "Purpose of the Exchange Offer" section and in Annex C
         hereto in the "Plan of Distribution" section of the prospectus forming
         a part of the Exchange Offer Registration Statement and include the
         information set forth in Annex D hereto in the Letter of Transmittal
         delivered pursuant to the Registered Exchange Offer; (iii) if requested
         by an Initial Purchaser, include the information required by Items 507
         or 508 of Regulation S-K under the Securities Act, as applicable, in
         the prospectus forming a part of the Exchange Offer Registration
         Statement; (iv) include within the prospectus contained in the Exchange
         Offer Registration Statement a section entitled "Plan of Distribution,"
         reasonably acceptable to the Initial Purchasers, which shall contain a
         summary statement of the positions taken or policies made by the staff
         of the Commission with respect to the potential "underwriter" status of
         any broker-dealer that is the beneficial owner (as defined in Rule
         13d-3 under the Securities Exchange Act of 1934, as amended (the
         "Exchange Act")) of Exchange Securities received by such broker-dealer
         in the Registered Exchange Offer (a "Participating Broker-Dealer"),
         whether such positions or policies have been publicly disseminated by
         the staff of the Commission or such positions or policies, in the
         reasonable judgment of the Initial Purchasers based upon advice of
         counsel (which may be in-house counsel), represent the prevailing views
         of the staff of the Commission; and (v) in the case of a Shelf
         Registration Statement, include the names of the Holders who propose to
         sell Securities pursuant to the Shelf Registration Statement as selling
         securityholders.

                  (b) The Company shall give written notice to the Initial
         Purchasers, the Holders of the Securities and any Participating
         Broker-Dealer from whom the Company has received prior written notice
         that it will be a Participating Broker-Dealer in the Registered
         Exchange Offer (which notice pursuant to clauses (ii)-(v) hereof shall
         be accompanied by an instruction to suspend the use of the prospectus
         until the requisite changes have been made):

                           (i)   when the Registration Statement or any
                  post-effective amendment thereto has become effective;
                  provided, however, that in addition to such notice, written
                  notice shall also be given to the Initial Purchasers when the
                  Registration Statement or any amendment thereto has been filed
                  with the Commission;

                           (ii)  of any request by the Commission for amendments
                  or supplements to the Registration Statement or the prospectus
                  included therein or for additional information;

                           (iii) of the issuance by the Commission of any stop
                  order suspending the effectiveness of the Registration
                  Statement or the initiation of any proceedings for that
                  purpose;

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                           (iv)  of the receipt by the Company or its legal
                  counsel of any notification with respect to the suspension of
                  the qualification of the Securities for sale in any
                  jurisdiction or the initiation or threatening of any
                  proceeding for such purpose; and

                           (v)   of the happening of any event that requires the
                  Company to make changes in the Registration Statement or the
                  prospectus in order that the Registration Statement or the
                  prospectus do not contain an untrue statement of a material
                  fact nor omit to state a material fact required to be stated
                  therein or necessary to make the statements therein (in the
                  case of the prospectus, in light of the circumstances under
                  which they were made) not misleading.

                  (c) The Company shall make every reasonable effort to obtain
         the withdrawal at the earliest possible time, of any order suspending
         the effectiveness of the Registration Statement.

                  (d) The Company shall furnish to each Holder of Securities
         included within the coverage of the Shelf Registration, without charge,
         at least one copy of the Shelf Registration Statement and any
         post-effective amendment thereto, including financial statements and
         schedules, and, if the Holder so requests in writing, all exhibits
         thereto (including those, if any, incorporated by reference).

                  (e) The Company shall deliver to each Exchanging Dealer and
         each Initial Purchaser, and to any other Holder who so requests,
         without charge, at least one copy of the Exchange Offer Registration
         Statement and any post-effective amendment thereto, including financial
         statements and schedules, and, if any Initial Purchaser or any such
         Holder requests, all exhibits thereto (including those incorporated by
         reference).

                  (f) The Company shall, during the Shelf Registration Period,
         deliver to each Holder of Securities included within the coverage of
         the Shelf Registration, without charge, as many copies of the
         prospectus (including each preliminary prospectus) included in the
         Shelf Registration Statement and any amendment or supplement thereto as
         such person may reasonably request. The Company consents, subject to
         the provisions of this Agreement, to the use of the prospectus or any
         amendment or supplement thereto by each of the selling Holders of the
         Securities in connection with the offering and sale of the Securities
         covered by the prospectus, or any amendment or supplement thereto,
         included in the Shelf Registration Statement.

                  (g) The Company shall deliver to each Initial Purchaser, any
         Exchanging Dealer, any Participating Broker-Dealer and such other
         persons required to deliver a prospectus following the Registered
         Exchange Offer, without charge, as many copies of the final prospectus
         included in the Exchange Offer Registration Statement and any amendment
         or supplement thereto as such persons may reasonably request. The
         Company consents, subject to the provisions of this Agreement, to the
         use of the prospectus or any amendment or supplement thereto by any
         Initial Purchaser, if necessary, any Participating Broker-Dealer and
         such other persons required to deliver a prospectus following the
         Registered Exchange Offer in connection with the offering and sale of
         the Exchange Securities covered by the prospectus, or any amendment or
         supplement thereto, included in such Exchange Offer Registration
         Statement.

                  (h) Prior to any public offering of the Securities pursuant to
         any Registration Statement the Company shall register or qualify or
         cooperate with the Holders of the Securities included therein and their
         respective counsel in connection with the registration or qualification
         of the Securities for offer and sale under the securities or "blue sky"
         laws of such states of the United States as any Holder of the
         Securities reasonably requests in writing and do any and all other acts
         or things necessary or advisable to enable the offer and sale in such
         jurisdictions of the Securities covered by such Registration Statement;
         provided, however, that the Company shall not be required to (i)
         qualify generally to do business in any jurisdiction where it is not
         then so qualified or (ii) take any action which would subject it to
         general service of process or to taxation in any jurisdiction where it
         is not then so subject.

                  (i) The Company shall cooperate with the Holders of the
         Securities to facilitate the timely preparation and delivery of
         certificates representing the Securities to be sold pursuant to any
         Registration Statement free of any restrictive legends and in such
         denominations and registered in such names as the

<PAGE>

         Holders may request a reasonable period of time prior to sales of the
         Securities pursuant to such Registration Statement.

                  (j) Upon the occurrence of any event contemplated by
         paragraphs (ii) through (v) of Section 3(b) above during the period for
         which the Company is required to maintain an effective Registration
         Statement, the Company shall promptly prepare and file a post-effective
         amendment to the Registration Statement or a supplement to the related
         prospectus and any other required document so that, as thereafter
         delivered to Holders of the Securities or purchasers of Securities, the
         prospectus will not contain an untrue statement of a material fact or
         omit to state any material fact required to be stated therein or
         necessary to make the statements therein, in light of the circumstances
         under which they were made, not misleading. If the Company notifies the
         Initial Purchasers, the Holders of the Securities and any known
         Participating Broker-Dealer in accordance with paragraphs (ii) through
         (v) of Section 3(b) above to suspend the use of the prospectus until
         the requisite changes to the prospectus have been made, then the
         Initial Purchasers, the Holders of the Securities and any such
         Participating Broker-Dealers shall suspend use of such prospectus, and
         the period of effectiveness of the Shelf Registration Statement
         provided for in Section 2(b) above and the Exchange Offer Registration
         Statement provided for in Section 1 above shall each be extended by the
         number of days from and including the date of the giving of such notice
         to and including the date when the Initial Purchasers, the Holders of
         the Securities and any known Participating Broker-Dealer shall have
         received such amended or supplemented prospectus pursuant to this
         Section 3(j).

                  (k) Not later than the effective date of the applicable
         Registration Statement, the Company will provide a CUSIP number for the
         Initial Securities, the Exchange Securities or the Private Exchange
         Securities, as the case may be, and provide the applicable trustee with
         printed certificates for the Initial Securities, the Exchange
         Securities or the Private Exchange Securities, as the case may be, in a
         form eligible for deposit with The Depository Trust Company.

                  (l) The Company will comply with all rules and regulations of
         the Commission to the extent and so long as they are applicable to the
         Registered Exchange Offer or the Shelf Registration and will make
         generally available to its security holders (or otherwise provide in
         accordance with Section 11(a) of the Securities Act) an earnings
         statement satisfying the provisions of Section 11(a) of the Securities
         Act, no later than 45 days after the end of a 12-month period (or 90
         days, if such period is a fiscal year) beginning with the first month
         of the Company's first fiscal quarter commencing after the effective
         date of the Registration Statement, which statement shall cover such
         12-month period.

                  (m) The Company shall cause the Indenture to be qualified
         under the Trust Indenture Act of 1939, as amended, in a timely manner
         and containing such changes, if any, as shall be necessary for such
         qualification. In the event that such qualification would require the
         appointment of a new trustee under the Indenture, the Company shall
         appoint a new trustee thereunder pursuant to the applicable provisions
         of the Indenture.

                  (n) The Company may require each Holder of Securities to be
         sold pursuant to the Shelf Registration Statement to furnish to the
         Company such information regarding the Holder and the distribution of
         the Securities as the Company may from time to time reasonably require
         for inclusion in the Shelf Registration Statement, and the Company may
         exclude from such registration the Securities of any Holder that
         unreasonably fails to furnish such information within a reasonable time
         after receiving such request.

                  (o) The Company shall enter into such customary agreements
         (including, if requested, an underwriting agreement in customary form)
         and take all such other action, if any, as any Holder of the Securities
         shall reasonably request in order to facilitate the disposition of the
         Securities pursuant to any Shelf Registration.

                  (p) In the case of any Shelf Registration, the Company shall
         (i) make reasonably available for inspection by the Holders of the
         Securities, any underwriter participating in any disposition pursuant
         to the Shelf Registration Statement and any attorney, accountant or
         other agent retained by the Holders of the Securities or any such
         underwriter all relevant financial and other records, pertinent
         corporate documents

<PAGE>

         and properties of the Company and (ii) cause the Company's officers,
         directors, employees, accountants and auditors to supply all relevant
         information reasonably requested by the Holders of the Securities or
         any such underwriter, attorney, accountant or agent in connection with
         the Shelf Registration Statement, in each case, as shall be reasonably
         necessary to enable such persons, to conduct a reasonable investigation
         within the meaning of Section 11 of the Securities Act; provided,
         however, that the foregoing inspection and information gathering shall
         be coordinated on behalf of the Initial Purchasers by you and on behalf
         of the other parties, by one counsel designated by and on behalf of
         such other parties as described in Section 4 hereof.

                  (q) In the case of any Shelf Registration, the Company, if
         requested by any Holder of Securities covered thereby, shall cause (i)
         its counsel (who may be in-house counsel) to deliver an opinion and
         updates thereof relating to the Securities in customary form addressed
         to such Holders and the managing underwriters, if any, thereof and
         dated, in the case of the initial opinion, the effective date of such
         Shelf Registration Statement (it being agreed that the matters to be
         covered by such opinion shall include, without limitation, the due
         incorporation and good standing of the Company and its subsidiaries;
         the qualification of the Company and its subsidiaries to transact
         business as foreign corporations; the due authorization, execution and
         delivery of the relevant agreement of the type referred to in Section
         3(o) hereof; the due authorization, execution, authentication and
         issuance, and the validity and enforceability, of the applicable
         Securities; the absence of material legal or governmental proceedings
         involving the Company and its subsidiaries; the absence of governmental
         approvals required to be obtained in connection with the Shelf
         Registration Statement, the offering and sale of the applicable
         Securities, or any agreement of the type referred to in Section 3(o)
         hereof; the compliance as to form of such Shelf Registration Statement
         and any documents incorporated by reference therein and of the
         Indenture with the requirements of the Securities Act and the Trust
         Indenture Act, respectively; and, as of the date of the opinion and as
         of the effective date of the Shelf Registration Statement or most
         recent post-effective amendment thereto, as the case may be, the
         absence from such Shelf Registration Statement and the prospectus
         included therein, as then amended or supplemented, and from any
         documents incorporated by reference therein of an untrue statement of a
         material fact or the omission to state therein a material fact required
         to be stated therein or necessary to make the statements therein not
         misleading (in the case of any such documents, in the light of the
         circumstances existing at the time that such documents were filed with
         the Commission under the Exchange Act); (ii) its officers to execute
         and deliver all customary documents and certificates and updates
         thereof requested by any underwriters of the applicable Securities and
         (iii) its independent public accountants and the independent public
         accountants with respect to the financial information relating to
         Semiconductor Components Group of Motorola, Inc. provided in the Shelf
         Registration Statement to provide to the selling Holders of the
         applicable Securities and any underwriter therefor a comfort letter in
         customary form and covering matters of the type customarily covered in
         comfort letters in connection with primary underwritten offerings,
         subject to receipt of appropriate documentation as contemplated, and
         only if permitted, by Statement of Auditing Standards No. 72.

                  (r) In the case of the Registered Exchange Offer, if requested
         by any Initial Purchaser or any known Participating Broker-Dealer, the
         Company shall cause (i) its counsel (who may be in-house counsel) to
         deliver to such Initial Purchaser or such Participating Broker-Dealer a
         signed opinion in the form set forth in Section 6(c) of the Purchase
         Agreement with such changes as are customary in connection with the
         preparation of a Registration Statement and (ii) its independent public
         accountants and the independent public accountants with respect to the
         financial information relating to Semiconductor Components Group of
         Motorola, Inc. provided in the Registration Statement to deliver to
         such Initial Purchaser or such Participating Broker-Dealer a comfort
         letter, in customary form, meeting the requirements as to the substance
         thereof as set forth in Section 6(a) of the Purchase Agreement, with
         appropriate date changes.

                  (s) If Securities are to be accepted for exchange pursuant to
         a Registered Exchange Offer or a Private Exchange, upon delivery of
         such Securities by Holders to the Company (or to such other Person as
         directed by the Company) in exchange for the Exchange Securities or the
         Private Exchange Securities, as the case may be, the Company shall
         mark, or caused to be marked, on the Initial Securities so exchanged
         that such Initial Securities are being canceled in exchange for the
         Exchange Securities or the Private Exchange Securities, as the case may
         be; in no event shall the Initial Securities be marked as paid or
         otherwise satisfied.

<PAGE>

                  (t) In the event that any broker-dealer registered under the
         Exchange Act shall underwrite any Securities or participate as a member
         of an underwriting syndicate or selling group or "assist in the
         distribution" (within the meaning of the Conduct Rules (the "RULES") of
         the National Association of Securities Dealers, Inc. ("NASD")) thereof,
         whether as a Holder of such Securities or as an underwriter, a
         placement or sales agent or a broker or dealer in respect thereof, or
         otherwise, the Company will assist such broker-dealer in complying with
         the requirements of such Rules, including, without limitation, by (i)
         if such Rules, including Rule 2720, shall so require, engaging a
         "qualified independent underwriter" (as defined in Rule 2720) to
         participate in the preparation of the Registration Statement relating
         to such Securities, to exercise usual standards of due diligence in
         respect thereto and, if any portion of the offering contemplated by
         such Registration Statement is an underwritten offering or is made
         through a placement or sales agent, to recommend the yield of such
         Securities, (ii) indemnifying any such qualified independent
         underwriter to the extent of the indemnification of underwriters
         provided in Section 5 hereof and (iii) providing such information to
         such broker-dealer as may be required in order for such broker-dealer
         to comply with the requirements of the Rules.

                  (u) The Company shall use its reasonable best efforts to take
         all other steps necessary to effect the registration of the Securities
         covered by a Registration Statement contemplated hereby.

         4. Registration Expenses.

                  (a) All expenses incident to the Company's performance of and
         compliance with this Agreement will be borne by the Company, regardless
         of whether a Registration Statement is ever filed or becomes effective,
         including without limitation;

                           (i)   all registration and filing fees and expenses;

                           (ii)  all fees and expenses of compliance with
                  federal securities and state "blue sky" or securities laws;

                           (iii) all expenses of printing (including printing
                  certificates for the Securities to be issued in the Registered
                  Exchange Offer and the Private Exchange and printing of
                  Prospectuses), messenger and delivery services and telephone;

                           (iv)  all fees and disbursements of counsel for the
                  Company;

                           (v)   all application and filing fees in connection
                  with listing the Exchange Securities on a national securities
                  exchange or automated quotation system pursuant to the
                  requirements hereof; and

                           (vi)  all fees and disbursements of independent
                  certified public accountants of the Company (including the
                  expenses of any special audit and comfort letters required by
                  or incident to such performance).

The Company will bear its internal expenses (including, without limitation, all
salaries and expenses of its officers and employees performing legal or
accounting duties), the expenses of any annual audit and the fees and expenses
of any person, including special experts, retained by the Company.

                  (b) In connection with any Registration Statement required by
         this Agreement, the Company will reimburse the Initial Purchasers and
         the Holders of Transfer Restricted Securities who are tendering Initial
         Securities in the Registered Exchange Offer and/or selling or reselling
         Securities pursuant to the "Plan of Distribution" contained in the
         Exchange Offer Registration Statement or the Shelf Registration
         Statement, as applicable, for the reasonable, documented fees and
         disbursements of not more than one counsel chosen by the Initial
         Purchasers unless another firm shall be chosen by the Holders of a
         majority in principal amount of the Transfer Restricted Securities for
         whose benefit such Registration Statement is being prepared.

<PAGE>

         5. Indemnification.

                  (a) The Company agrees to indemnify and hold harmless each
         Holder of the Securities, any Participating Broker-Dealer and each
         person, if any, who controls such Holder or such Participating
         Broker-Dealer within the meaning of the Securities Act or the Exchange
         Act (each Holder, any Participating Broker-Dealer and such controlling
         persons are referred to collectively as the "INDEMNIFIED PARTIES") from
         and against any losses, claims, damages or liabilities, joint or
         several, or any actions in respect thereof (including, but not limited
         to, any losses, claims, damages, liabilities or actions relating to
         purchases and sales of the Securities) to which each Indemnified Party
         may become subject under the Securities Act, the Exchange Act or
         otherwise, insofar as such losses, claims, damages, liabilities or
         actions arise out of or are based upon any untrue statement or alleged
         untrue statement of a material fact contained in a Registration
         Statement or prospectus or in any amendment or supplement thereto or in
         any preliminary prospectus relating to a Shelf Registration, or arise
         out of, or are based upon, the omission or alleged omission to state
         therein a material fact required to be stated therein or necessary to
         make the statements therein not misleading, and shall reimburse, as
         incurred, the Indemnified Parties for any legal or other expenses
         reasonably incurred by them in connection with investigating or
         defending any such loss, claim, damage, liability or action in respect
         thereof; provided, however, that (i) the Company shall not be liable in
         any such case to the extent that such loss, claim, damage or liability
         arises out of or is based upon any untrue statement or alleged untrue
         statement or omission or alleged omission made in a Registration
         Statement or prospectus or in any amendment or supplement thereto or in
         any preliminary prospectus relating to a Shelf Registration in reliance
         upon and in conformity with written information pertaining to such
         Holder and furnished to the Company by or on behalf of such Holder
         specifically for inclusion therein and (ii) with respect to any untrue
         statement or omission or alleged untrue statement or omission made in
         any preliminary prospectus relating to a Shelf Registration Statement,
         the indemnity agreement contained in this subsection (a) shall not
         inure to the benefit of any Holder or Participating Broker-Dealer from
         whom the person asserting any such losses, claims, damages or
         liabilities purchased the Securities concerned, to the extent that a
         prospectus relating to such Securities was required to be delivered by
         such Holder or Participating Broker-Dealer under the Securities Act in
         connection with such purchase and any such loss, claim, damage or
         liability of such Holder or Participating Broker-Dealer results from
         the fact that there was not sent or given to such person, at or prior
         to the written confirmation of the sale of such Securities to such
         person, a copy of the final prospectus if the Company had previously
         furnished copies thereof to such Holder or Participating Broker-Dealer;
         provided further, however, that this indemnity agreement will be in
         addition to any liability which the Company may otherwise have to such
         Indemnified Party. The Company shall also indemnify underwriters, their
         officers and directors and each person who controls such underwriters
         within the meaning of the Securities Act or the Exchange Act to the
         same extent as provided above with respect to the indemnification of
         the Holders of the Securities if requested by such Holders.

                  (b) Each Holder of the Securities, severally and not jointly,
         will indemnify and hold harmless the Company and each person, if any,
         who controls the Company within the meaning of the Securities Act or
         the Exchange Act from and against any losses, claims, damages or
         liabilities or any actions in respect thereof, to which the Company or
         any such controlling person may become subject under the Securities
         Act, the Exchange Act or otherwise, insofar as such losses, claims,
         damages, liabilities or actions arise out of or are based upon any
         untrue statement or alleged untrue statement of a material fact
         contained in a Registration Statement or prospectus or in any amendment
         or supplement thereto or in any preliminary prospectus relating to a
         Shelf Registration, or arise out of or are based upon the omission or
         alleged omission to state therein a material fact necessary to make the
         statements therein not misleading, but in each case only to the extent
         that the untrue statement or omission or alleged untrue statement or
         omission was made in reliance upon and in conformity with written
         information pertaining to such Holder and furnished to the Company by
         or on behalf of such Holder specifically for inclusion therein; and,
         subject to the limitation set forth immediately preceding this clause,
         shall reimburse, as incurred, the Company for any documented legal or
         other expenses reasonably incurred by the Company or any such
         controlling person in connection with investigating or defending any
         loss, claim, damage, liability or action in respect thereof. This
         indemnity agreement will be in addition to any liability which such
         Holder may otherwise have to the Company or any of its controlling
         persons.

<PAGE>

                  (c) Promptly after receipt by an indemnified party under this
         Section 5 of notice of the commencement of any action or proceeding
         (including a governmental investigation), such indemnified party will,
         if a claim in respect thereof is to be made against the indemnifying
         party under this Section 5, notify the indemnifying party of the
         commencement thereof; but the omission so to notify the indemnifying
         party will not, in any event, relieve the indemnifying party from any
         obligations to any indemnified party other than the indemnification
         obligation provided in paragraph (a) or (b) above. In case any such
         action is brought against any indemnified party, and it notifies the
         indemnifying party of the commencement thereof, the indemnifying party
         will be entitled to participate therein and, to the extent that it may
         wish, jointly with any other indemnifying party similarly notified, to
         assume the defense thereof, with counsel reasonably satisfactory to
         such indemnified party (who shall not, except with the consent of the
         indemnified party, be counsel to the indemnifying party), and after
         notice from the indemnifying party to such indemnified party of its
         election so to assume the defense thereof the indemnifying party will
         not be liable to such indemnified party under this Section 5 for any
         legal or other expenses, other than reasonable costs of investigation,
         subsequently incurred by such indemnified party in connection with the
         defense thereof and as provided in the following sentence. In any such
         proceeding, any indemnified party shall have the right to retain its
         own counsel, but the fees and expenses of such counsel shall be at the
         expense of such indemnified party unless (i) the indemnifying party and
         the indemnified party shall have mutually agreed to the contrary; (ii)
         the indemnifying party has failed within a reasonable time to retain
         counsel reasonably satisfactory to the indemnified party; (iii) the
         indemnified party shall have reasonably concluded that there may be
         legal defenses available to it that are different from or in addition
         to those available to the indemnifying party; or (iv) the named parties
         in any such proceeding (including any impleaded parties) include both
         the indemnifying party and the indemnified party and representation of
         both parties by the same counsel would be inappropriate due to actual
         or potential differing interests between them. No indemnifying party
         shall, without the prior written consent of the indemnified party,
         effect any settlement of any pending or threatened action in respect of
         which any indemnified party is or could have been a party and indemnity
         could have been sought hereunder by such indemnified party unless such
         settlement (i) includes an unconditional release of such indemnified
         party from all liability on any claims that are the subject matter of
         such action, and (ii) does not include a statement as to or an
         admission of fault, culpability or a failure to act by or on behalf of
         any indemnified party.

                  (d) If the indemnification provided for in this Section 5 is
         unavailable or insufficient to hold harmless an indemnified party under
         subsections (a) or (b) above, then each indemnifying party shall
         contribute to the amount paid or payable by such indemnified party as a
         result of the losses, claims, damages or liabilities (or actions in
         respect thereof) referred to in subsection (a) or (b) above in such
         proportion as is appropriate to reflect the relative fault of the
         indemnifying party or parties on the one hand and the indemnified party
         on the other in connection with the statements or omissions that
         resulted in such losses, claims, damages or liabilities (or actions in
         respect thereof) as well as any other relevant equitable
         considerations. The relative fault of the parties shall be determined
         by reference to, among other things, whether the untrue or alleged
         untrue statement of a material fact or the omission or alleged omission
         to state a material fact relates to information supplied by the Company
         on the one hand or such Holder or such other indemnified party, as the
         case may be, on the other, and the parties' relative intent, knowledge,
         access to information and opportunity to correct or prevent such
         statement or omission. The amount paid by an indemnified party as a
         result of the losses, claims, damages or liabilities referred to in the
         first sentence of this subsection (d) shall be deemed to include any
         legal or other expenses reasonably incurred by such indemnified party
         in connection with investigating or defending any action or claim which
         is the subject of this subsection (d). Notwithstanding any other
         provision of this Section 5(d), the Holders of the Securities shall not
         be required to contribute any amount in excess of the amount by which
         the net proceeds received by such Holders from the sale of the
         Securities pursuant to a Registration Statement exceeds the amount of
         damages which such Holders have otherwise been required to pay by
         reason of such untrue or alleged untrue statement or omission or
         alleged omission. No person guilty of fraudulent misrepresentation
         (within the meaning of Section 11(f) of the Securities Act) shall be
         entitled to contribution from any person who was not guilty of such
         fraudulent misrepresentation. For purposes of this paragraph (d), each
         person, if any, who controls such indemnified party within the meaning
         of the Securities Act or the Exchange Act shall have the same rights to
         contribution as such indemnified party and each person, if any, who
         controls the Company within the meaning of the Securities Act or the
         Exchange Act shall have the same rights to contribution as the Company.

<PAGE>

                  (e) The agreements contained in this Section 5 shall survive
         the sale of the Securities pursuant to a Registration Statement and
         shall remain in full force and effect, regardless of any termination or
         cancellation of this Agreement or any investigation made by or on
         behalf of any indemnified party.

         6. Additional Interest Under Certain Circumstances.

                  (a) Additional interest (the "ADDITIONAL INTEREST") with
         respect to the Securities shall be assessed as follows if any of the
         following events occur (each such event in clauses (i) through (iv)
         below being herein called a "REGISTRATION DEFAULT"):

                           (i)   any Registration Statement required by this
                  Agreement is not filed with the Commission on or prior to the
                  applicable Filing Deadline;

                           (ii)  any Registration Statement required by this
                  Agreement is not declared effective by the Commission on or
                  prior to the applicable Effectiveness Deadline;

                           (iii) the Registered Exchange Offer has not been
                  consummated on or prior to the Consummation Deadline; or

                           (iv)  any Registration Statement is declared
                  effective within 270 days after the Closing Date (or in the
                  case of Shelf Registration Statement to be filed in response
                  to any change in law or applicable interpretations thereof,
                  within 60 days after the publication of the change in law or
                  interpretation) but shall thereafter cease to be effective (at
                  any time that the Company is obligated to maintain the
                  effectiveness thereof) without being succeeded within 30 days
                  by an additional Registration Statement filed and declared
                  effective.

Each of the foregoing will constitute a Registration Default whatever the reason
for any such event and whether it is voluntary or involuntary or is beyond the
control of the Company or pursuant to operation of law or as a result of any
action or inaction by the Commission.

Additional Interest shall accrue on the Securities over and above the interest
set forth in the title of the Securities from and including the date on which
any such Registration Default shall occur to but excluding the date on which all
such Registration Defaults have been cured, at a rate of 0.50% per annum (the
"ADDITIONAL INTEREST RATE") for the first 90-day period immediately following
the occurrence of such Registration Default. The Additional Interest Rate shall
increase by an additional 0.50% per annum with respect to each subsequent 90-day
period until all Registration Defaults have been cured, up to a maximum
Additional Interest Rate of 2.0% per annum.

                  (b) Any amounts of Additional Interest due pursuant to Section
         6(a) will be payable in cash on the regular interest payment dates with
         respect to the Securities. The amount of Additional Interest will be
         determined by multiplying the applicable Additional Interest Rate by
         the principal amount of the Securities and further multiplied by a
         fraction, the numerator of which is the number of days such Additional
         Interest Rate was applicable during such period (determined on the
         basis of a 360-day year comprised of twelve 30-day months), and the
         denominator of which is 360.

                  (c) "Transfer Restricted Securities" means each Security until
         (i) the date on which such Security has been exchanged by a person
         other than a broker-dealer for a freely transferable Exchange Security
         in the Registered Exchange Offer, (ii) following the exchange by a
         broker-dealer in the Registered Exchange Offer of an Initial Security
         for an Exchange Note, the date on which such Exchange Note is sold to a
         purchaser who receives from such broker-dealer on or prior to the date
         of such sale a copy of the prospectus contained in the Exchange Offer
         Registration Statement, (iii) the date on which such Security has been
         effectively registered under the Securities Act and disposed of in
         accordance with the Shelf Registration Statement or (iv) the date on
         which such Security is distributed to the public pursuant to Rule 144
         under the Securities Act or is saleable pursuant to Rule 144(k) under
         the Securities Act.

<PAGE>

         7. Rules 144 and 144A. The Company shall use its best efforts to file
the reports required to be filed by it under the Securities Act and the Exchange
Act in a timely manner and, if at any time the Company is not required to file
such reports, it will, upon the request of any Holder of Securities, make
publicly available other information so long as necessary to permit sales of
their securities pursuant to Rules 144 and 144A. The Company covenants that it
will take such further action as any Holder of Securities may reasonably
request, all to the extent required from time to time to enable such Holder to
sell Securities without registration under the Securities Act within the
limitation of the exemptions provided by Rules 144 and 144A (including the
requirements of Rule 144A(d)(4)). The Company will provide a copy of this
Agreement to prospective purchasers of Initial Securities identified to the
Company by the Initial Purchasers upon request. Upon the request of any Holder
of Initial Securities, the Company shall deliver to such Holder a written
statement as to whether it has complied with such requirements. Notwithstanding
the foregoing, nothing in this Section 7 shall be deemed to require the Company
to register any of its securities pursuant to the Exchange Act.

         8. Underwritten Registrations. If any of the Transfer Restricted
Securities covered by any Shelf Registration are to be sold in an underwritten
offering, the investment banker or investment bankers and manager or managers
that will administer the offering ("MANAGING UNDERWRITERS") will be selected by
the Holders of a majority in aggregate principal amount of such Transfer
Restricted Securities to be included in such offering.

         No person may participate in any underwritten registration hereunder
unless such person (i) agrees to sell such person's Transfer Restricted
Securities on the basis reasonably provided in any underwriting arrangements
approved by the persons entitled hereunder to approve such arrangements and (ii)
completes and executes all questionnaires, powers of attorney, indemnities,
underwriting agreements and other documents reasonably required under the terms
of such underwriting arrangements.

         9. Miscellaneous.

                  (a) Remedies. The Company acknowledges and agrees that any
         failure by the Company to comply with its obligations under Sections 1
         and 2 hereof may result in material irreparable injury to the Initial
         Purchasers or the Holders for which there is no adequate remedy at law,
         that it will not be possible to measure damages for such injuries
         precisely and that, in the event of any such failure, the Initial
         Purchasers or any Holder may obtain such relief as may be required to
         specifically enforce the Company's obligations under Sections 1 and 2
         hereof. The Company further agrees to waive the defense in any action
         for specific performance that a remedy at law would be adequate.

                  (b) No Inconsistent Agreements. The Company will not on or
         after the date of this Agreement enter into any agreement with respect
         to its securities that is inconsistent with the rights granted to the
         Holders in this Agreement or otherwise conflicts with the provisions
         hereof. The rights granted to the Holders hereunder do not in any way
         conflict with and are not inconsistent with the rights granted to the
         holders of the Company's securities under any agreement in effect on
         the date hereof.

                  (c) Amendments and Waivers. The provisions of this Agreement
         may not be amended, modified or supplemented, and waivers or consents
         to departures from the provisions hereof may not be given, except by
         the Company and the written consent of the Holders of a majority in
         principal amount of the Securities affected by such amendment,
         modification, supplement, waiver or consents. Without the consent of
         the Holder of each Security, however, no modification may change the
         provisions relating to the payment of Additional Interest.

                  (d) Notices. All notices and other communications provided for
         or permitted hereunder shall be made in writing by hand delivery,
         first-class mail, facsimile transmission, or air courier which
         guarantees overnight delivery:

                  (1) if to a Holder of the Securities, at the most current
         address given by such Holder to the Company.

                  (2) if to the Initial Purchasers;

<PAGE>

                  Salomon Smith Barney Inc.
                  388 Greenwich Street
                  New York, NY 10013
                  Fax No.:  (212) 816-0499
                  Attention: Office of General Counsel

                  (3) if to the Company, at its address as follows:

                  ON Semiconductor Corporation
                  5005 East McDowell Road
                  Phoenix, Arizona 85005
                  Fax No.: (602) 244-5601
                  Attention: General Counsel

         with a copy to:

                  Cleary, Gottlieb, Steen & Hamilton
                  One Liberty Plaza
                  New York, New York 10006-1470
                  Fax No.:  (212) 225-3999
                  Attention: Stephen H. Shalen, Esq.

         All such notices and communications shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; three business
days after being deposited in the mail, postage prepaid, if mailed; when receipt
is acknowledged by recipient's facsimile machine operator, if sent by facsimile
transmission; and on the day delivered, if sent by overnight air courier
guaranteeing next day delivery.

                  (e) Third Party Beneficiaries. The Holders shall be third
         party beneficiaries to the agreements made hereunder between the
         Company, on the one hand, and the Initial Purchasers, on the other
         hand, and shall have the right to enforce such agreements directly to
         the extent they may deem such enforcement necessary or advisable to
         protect their rights or the rights of Holders hereunder.

                  (f) Successors and Assigns. This Agreement shall be binding
         upon the Company and its successors and assigns.

                  (g) Counterparts. This Agreement may be executed in any number
         of counterparts and by the parties hereto in separate counterparts,
         each of which when so executed shall be deemed to be an original and
         all of which taken together shall constitute one and the same
         agreement.

                  (h) Headings. The headings in this Agreement are for
         convenience of reference only and shall not limit or otherwise affect
         the meaning hereof.

                  (i) Governing Law. THIS AGREEMENT 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.

                  (j) Severability. If any one or more of the provisions
         contained herein, or the application thereof in any circumstance, is
         held invalid, illegal or unenforceable, the validity, legality and
         enforceability of any such provision in every other respect and of the
         remaining provisions contained herein shall not be affected or impaired
         thereby.

                  (k) Securities Held by the Company. Whenever the consent or
         approval of Holders of a specified percentage of principal amount of
         Securities is required hereunder, Securities held by the Company or its
         affiliates (other than subsequent Holders of Securities if such
         subsequent Holders are deemed to be

<PAGE>

         affiliates solely by reason of their holdings of such Securities) shall
         not be counted in determining whether such consent or approval was
         given by the Holders of such required percentage.

<PAGE>

         If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Holding Company a counterpart hereof,
whereupon this instrument, along with all counterparts, will become a binding
agreement among the several Initial Purchasers, the Issuers and the Guarantors
in accordance with its terms.

Very truly yours,

By: ON SEMICONDUCTOR CORPORATION,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

By: SEMICONDUCTOR COMPONENTS
    INDUSTRIES, LLC,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

By: SCG (MALAYSIA SMP) HOLDING
    CORPORATION,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

By: SCG (CZECH) HOLDING CORPORATION,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

By: SCG (CHINA) HOLDING CORPORATION,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

By: SEMICONDUCTOR COMPONENTS
    INDUSTRIES PUERTO RICO, INC.,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

<PAGE>

By: SCG INTERNATIONAL DEVELOPMENT,
    LLC,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

By: SEMICONDUCTOR COMPONENTS
    INDUSTRIES OF RHODE ISLAND, INC.,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

By: SEMICONDUCTOR COMPONENTS INDUSTRIES
    INTERNATIONAL OF RHODE ISLAND, INC.,

by /s/ John T. Kurtzweil
  ----------------------------
  Name:  John T. Kurtzweil
  Title: Chief Financial Officer

The foregoing Registration Rights Agreement is hereby confirmed and accepted as
of the date first above written.

SALOMON SMITH BARNEY INC.
CREDIT SUISSE FIRST BOSTON LLC
J.P. MORGAN SECURITIES INC.
MORGAN STANLEY & CO. INCORPORATED

By: SALOMON SMITH BARNEY, INC.,

by /s/ H. Allen Bouch
  ----------------------------
    Name:  H. Allen Bouch
    Title: Managing Director

<PAGE>

                                                                         ANNEX A

         Each broker-dealer that receives Exchange Securities for its own
account pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange Securities. The Letter
of Transmittal states that by so acknowledging and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act. This Prospectus, as it may be amended or
supplemented from time to time, may be used by a broker-dealer in connection
with resales of Exchange Securities received in exchange for Initial Securities
where such Initial Securities were acquired by such broker-dealer as a result of
market-making activities or other trading activities. The Company has agreed
that, for a period of 180 days after the Expiration Date (as defined herein), it
will make this Prospectus available to any broker-dealer for use in connection
with any such resale. See "Plan of Distribution."

<PAGE>

                                                                         ANNEX B

         Each broker-dealer that receives Exchange Securities for its own
account in exchange for Initial Securities, where such Initial Securities were
acquired by such broker-dealer as a result of market-making activities or other
trading activities, must acknowledge that it will deliver a prospectus in
connection with any resale of such Exchange Securities. See "Plan of
Distribution."

<PAGE>

                                                                         ANNEX C

                              PLAN OF DISTRIBUTION

         Each broker-dealer that receives Exchange Securities for its own
account pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange Securities. This
Prospectus, as it may be amended or supplemented from time to time, may be used
by a broker-dealer in connection with resales of Exchange Securities received in
exchange for Initial Securities where such Initial Securities were acquired as a
result of market-making activities or other trading activities. The Company has
agreed that, for a period of 180 days after the Expiration Date, it will make
this prospectus, as amended or supplemented, available to any broker-dealer for
use in connection with any such resale. In addition, until, 2003, all dealers
effecting transactions in the Exchange Securities may be required to deliver a
prospectus.

         The Company will not receive any proceeds from any sale of Exchange
Securities by broker-dealers. Exchange Securities received by broker-dealers for
their own account pursuant to the Exchange Offer may be sold from time to time
in one or more transactions in the over-the-counter market, in negotiated
transactions, through the writing of options on the Exchange Securities or a
combination of such methods of resale, at market prices prevailing at the time
of resale, at prices related to such prevailing market prices or negotiated
prices. Any such resale may be made directly to purchasers or to or through
brokers or dealers who may receive compensation in the form of commissions or
concessions from any such broker-dealer or the purchasers of any such Exchange
Securities. Any broker-dealer that resells Exchange Securities that were
received by it for its own account pursuant to the Exchange Offer and any broker
or dealer that participates in a distribution of such Exchange Securities may be
deemed to be an "underwriter" within the meaning of the Securities Act and any
profit on any such resale of Exchange Securities and any commission or
concessions received by any such persons may be deemed to be underwriting
compensation under the Securities Act. The Letter of Transmittal states that, by
acknowledging that it will deliver and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.

         For a period of 180 days after the Expiration Date the Company will
promptly send additional copies of this Prospectus and any amendment or
supplement to this Prospectus to any broker-dealer that requests such documents
in the Letter of Transmittal. The Company has agreed to pay all expenses
incident to the Exchange Offer (including the expenses of one counsel for the
Holders of the Securities) other than commissions or concessions of any brokers
or dealers and will indemnify the Holders of the Securities (including any
broker-dealers) against certain liabilities, including liabilities under the
Securities Act.

<PAGE>

                                                                         ANNEX D

[ ]      CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL
COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS THERETO

         Name:

         Address:

If the undersigned is not a broker-dealer, the undersigned represents that it is
not engaged in, and does not intend to engage in, a distribution of Exchange
Securities. If the undersigned is a broker-dealer that will receive Exchange
Securities for its own account in exchange for Initial Securities that were
acquired as a result of market-making activities or other trading activities, it
acknowledges that it will deliver a prospectus in connection with any resale of
such Exchange Securities; however, by so acknowledging and by delivering a
prospectus, the undersigned will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.