Document:

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                                                                    Exhibit 10.5

                       MULTILINK TECHNOLOGY CORPORATION
                       --------------------------------

                       2000 EMPLOYEE STOCK PURCHASE PLAN
                       ---------------------------------

     I.        PURPOSE OF THE PLAN

     This Employee Stock Purchase Plan is intended to promote the interests of
Multilink Technology Corporation by providing eligible employees with the
opportunity to acquire a proprietary interest in the Corporation through
participation in a payroll-deduction based employee stock purchase plan designed
to qualify under Section 423 of the Code.

     Capitalized terms herein shall have the meanings assigned to such terms in
the attached Appendix.

     II.       ADMINISTRATION OF THE PLAN

     The Plan Administrator shall have full authority to interpret and construe
any provision of the Plan and to adopt such rules and regulations for
administering the Plan as it may deem necessary in order to comply with the
requirements of Code Section 423. Decisions of the Plan Administrator shall be
final and binding on all parties having an interest in the Plan.

     III.      STOCK SUBJECT TO PLAN

               A.   The stock purchasable under the Plan shall be shares of
authorized but unissued or reacquired Common Stock, including shares of Common
Stock purchased on the open market. The number of shares of Common Stock
initially reserved for issuance under the Plan shall not exceed one million five
hundred thousand (1,500,000) shares.

               B.   The number of shares of Common Stock available for issuance
under the Plan shall automatically increase on the first trading day of January
each calendar year during the term of the Plan, beginning with calendar year
2000, by an amount equal to one percent (1%) of the total number of shares of
Class A and Class B Common Stock outstanding on the last trading day in December
of the immediately preceding calendar year, but in no event shall any such
annual increase exceed 1,000,000 shares and in no event shall the aggregate
number of shares of Common Stock available for issuance under the Plan (as
adjusted for all such annual increases) exceed 11,500,000 shares.

               C.   Should any change be made to the Common Stock by reason of
any stock split, stock dividend, recapitalization, combination of shares,
exchange of shares or other change affecting the outstanding Common Stock as a
class without the Corporation's receipt of consideration, appropriate
adjustments shall be made to (i) the maximum number and class of securities
issuable under the Plan, (ii) the maximum number and class of securities
purchasable per Participant on any one Purchase Date, (iii) the maximum number
and class of securities purchasable in the aggregate on any one Purchase Date
and (iv) the number and class of securities and the price per share in effect
under each outstanding purchase right in order to prevent the dilution or
enlargement of benefits thereunder.
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     IV.       OFFERING PERIODS

               A.   Shares of Common Stock shall be offered for purchase under
the Plan through a series of successive offering periods until such time as (i)
the maximum number of shares of Common Stock available for issuance under the
Plan shall have been purchased or (ii) the Plan shall have been sooner
terminated.

               B.   Each offering period shall be of such duration (not to
exceed twenty-four (24) months) as determined by the Plan Administrator prior to
the start date of such offering period. However, the initial offering period
shall commence at the Effective Time and terminate on the last business day in
December 2002. The next offering period shall commence on the first business day
in January 2003, and subsequent offering periods shall commence as designated by
the Plan Administrator.

               C.   Each offering period shall be comprised of a series of one
or more successive Purchase Intervals. Purchase Intervals shall run from the
first business day in July each year to the last business day in December of the
same year and from the first business day in January each year to the last
business day in June of the following year. However, the first Purchase Interval
in effect under the initial offering period shall commence at the Effective Time
and terminate on the last business day in June 2001.

               D.   Should the Fair Market Value per share of Common Stock on
any Purchase Date within an offering period be less than the Fair Market Value
per share of Common Stock on the start date of that offering period, then that
offering period shall automatically terminate immediately after the purchase of
shares of Common Stock on such Purchase Date, and a new offering period shall
commence on the next business day following such Purchase Date. The new offering
period shall have a duration of twenty (24) months, unless a shorter duration is
established by the Plan Administrator within five (5) business days following
the start date of that offering period .

     V.        ELIGIBILITY

               A.   Each individual who is an Eligible Employee on the start
date of any offering period under the Plan may enter that offering period on
such start date or on any subsequent Semi-Annual Entry Date within that offering
period, provided he or she remains an Eligible Employee.

               B.   Each individual who first becomes an Eligible Employee after
the start date of an offering period may enter that offering period on any
subsequent Semi-Annual Entry Date within that offering period on which he or she
is an Eligible Employee.

               C.   The date an individual enters an offering period shall be
designated his or her Entry Date for purposes of that offering period.

               D.   To participate in the Plan for a particular offering period,
the Eligible Employee must complete the enrollment forms prescribed by the Plan
Administrator (including a stock purchase agreement and a payroll deduction
authorization) and file such forms with the Plan Administrator (or its
designate) on or before his or her scheduled Entry Date.

                                      -2-
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     VI.       PAYROLL DEDUCTIONS

               A.   The payroll deduction authorized by the Participant for
purposes of acquiring shares of Common Stock during an offering period may be
any multiple of one percent (1%) of the Cash Earnings paid to the Participant
during each Purchase Interval within that offering period, up to a maximum of
fifteen percent (15%). The deduction rate so authorized shall continue in effect
throughout the offering period, except to the extent such rate is changed in
accordance with the following guidelines:

                    (i)  The Participant may, at any time during the offering
period, reduce his or her rate of payroll deduction to become effective as soon
as possible after filing the appropriate form with the Plan Administrator. The
Participant may not, however, effect more than one (1) such reduction per
Purchase Interval.

                    (ii) The Participant may, prior to the commencement of any
new Purchase Interval within the offering period, increase the rate of his or
her payroll deduction by filing the appropriate form with the Plan
Administrator. The new rate (which may not exceed the fifteen percent (15%)
maximum) shall become effective on the start date of the first Purchase Interval
following the filing of such form.

               B.   Payroll deductions shall begin on the first pay day
following the Participant's Entry Date into the offering period and shall
(unless sooner terminated by the Participant) continue through the pay day
ending with or immediately prior to the last day of that offering period. The
amounts so collected shall be credited to the Participant's book account under
the Plan, but no interest shall be paid on the balance from time to time
outstanding in such account. The amounts collected from the Participant shall
not be required to be held in any segregated account or trust fund and may be
commingled with the general assets of the Corporation and used for general
corporate purposes.

               C.   Payroll deductions shall automatically cease upon the
termination of the Participant's purchase right in accordance with the
provisions of the Plan.

               D.   The Participant's acquisition of Common Stock under the Plan
on any Purchase Date shall neither limit nor require the Participant's
acquisition of Common Stock on any subsequent Purchase Date, whether within the
same or a different offering period.

     VII.      PURCHASE RIGHTS

               A.   GRANT OF PURCHASE RIGHT. A Participant shall be granted a
separate purchase right for each offering period in which he or she
participates. The purchase right shall be granted on the Participant's Entry
Date into the offering period and shall provide the Participant with the right
to purchase shares of Common Stock, in a series of successive installments over
the remainder of such offering period, upon the terms set forth below. The
Participant shall execute a stock purchase agreement embodying such terms and
such other provisions (not inconsistent with the Plan) as the Plan Administrator
may deem advisable.

     Under no circumstances shall purchase rights be granted under the Plan to
any Eligible Employee if such individual would, immediately after the grant, own
(within the meaning of

                                      -3-
<PAGE>

Code Section 424(d)) or hold outstanding options or other rights to purchase,
stock possessing five percent (5%) or more of the total combined voting power or
value of all classes of stock of the Corporation or any Corporate Affiliate.

               B.   EXERCISE OF THE PURCHASE RIGHT. Each purchase right shall be
automatically exercised in installments on each successive Purchase Date within
the offering period, and shares of Common Stock shall accordingly be purchased
on behalf of each Participant on each such Purchase Date. The purchase shall be
effected by applying the Participant's payroll deductions for the Purchase
Interval ending on such Purchase Date to the purchase of whole shares of Common
Stock at the purchase price in effect for the Participant for that Purchase
Date.

               C.   PURCHASE PRICE. The purchase price per share at which Common
Stock will be purchased on the Participant's behalf on each Purchase Date within
the offering period shall be equal to eighty-five percent (85%) of the lower of
(i) the Fair Market Value per share of Common Stock on the Participant's Entry
Date into that offering period or (ii) the Fair Market Value per share of Common
Stock on that Purchase Date.

               D.   NUMBER OF PURCHASABLE SHARES. The number of shares of Common
Stock purchasable by a Participant on each Purchase Date during the offering
period shall be the number of whole shares obtained by dividing the amount
collected from the Participant through payroll deductions during the Purchase
Interval ending with that Purchase Date by the purchase price in effect for the
Participant for that Purchase Date. However, the maximum number of shares of
Common Stock purchasable per Participant on any one Purchase Date shall not
exceed five thousand (5,000) shares, subject to periodic adjustments in the
event of certain changes in the Corporation's capitalization. In addition, the
maximum aggregate number of shares of Common Stock purchasable in the aggregate
by all Participants on any one Purchase Date shall not exceed five hundred
thousand (500,000) shares, subject to periodic adjustments in the event of
certain changes in the Corporation's capitalization. However, the Plan
Administrator shall have the discretionary authority, exercisable prior to the
start of any offering period under the Plan, to increase or decrease the
limitations to be in effect for the number of shares purchasable per Participant
and in total by all Participants on each Purchase Date during that offering
period.

               E.   EXCESS PAYROLL DEDUCTIONS. Any payroll deductions not
applied to the purchase of shares of Common Stock on any Purchase Date because
they are not sufficient to purchase a whole share of Common Stock shall be held
for the purchase of Common Stock on the next Purchase Date. However, any payroll
deductions not applied to the purchase of Common Stock by reason of the
limitation on the maximum number of shares purchasable per Participant or in the
aggregate on the Purchase Date shall be promptly refunded to the Participant.

               F.   TERMINATION OF PURCHASE RIGHT. The following provisions
shall govern the termination of outstanding purchase rights:

                    (i)  A Participant may, at any time prior to the next
scheduled Purchase Date in the offering period, terminate his or her outstanding
purchase right by filing the

                                      -4-
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appropriate form with the Plan Administrator (or its designate), and no further
payroll deductions shall be collected from the Participant with respect to the
terminated purchase right. Any payroll deductions collected during the Purchase
Interval in which such termination occurs shall, at the Participant's election,
be immediately refunded or held for the purchase of shares on the next Purchase
Date. If no such election is made at the time such purchase right is terminated,
then the payroll deductions collected with respect to the terminated right shall
be refunded to the Participant as soon as possible.

                    (ii)   The termination of such purchase right shall be
irrevocable, and the Participant may not subsequently rejoin the Plan for the
Purchase Interval for which the terminated purchase right was granted or for any
subsequent Purchase Interval that commences 30 days or less after the effective
date of the termination. In order to resume participation in the Plan for any
subsequent Purchase Interval, such individual must re-enroll in the Plan (by
making a timely filing of the prescribed enrollment forms) on or before his or
her scheduled Entry Date into that Purchase Interval.

                    (iii)  Should the Participant cease to remain an Eligible
Employee for any reason (including death, disability or change in status) while
his or her purchase right remains outstanding, then that purchase right shall
immediately terminate, and all of the Participant's payroll deductions for the
Purchase Interval in which the purchase right so terminates shall be immediately
refunded. However, should the Participant cease to remain in active service by
reason of an approved unpaid leave of absence, subject to the remaining
provisions of this paragraph (iii), the Participant shall have the right,
exercisable up until the last business day of the Purchase Interval in which
such leave commences, to (a) withdraw all the payroll deductions collected to
date on his or her behalf for that Purchase Interval or (b) have such funds held
for the purchase of shares on his or her behalf on the next scheduled Purchase
Date. If no such election is made by the Participant prior to the last business
day of the Purchase Interval, then all of the Participant's payroll deductions
for such Purchase Interval shall be immediately refunded to the Participant. In
no event, however, shall any further payroll deductions be collected on the
Participant's behalf during such leave. Upon the Participant's return to active
service (i) within ninety (90) days following the commencement of such leave or
(ii) prior to the expiration of any longer period for which such Participant's
right to reemployment with the Corporation is guaranteed by either statute or
contract, his or her payroll deductions under the Plan shall automatically
resume at the rate in effect at the time the leave began, unless the Participant
withdraws from the Plan prior to his or her return. However, should the
Participant's leave of absence exceed ninety (90) days and his or her re-
employment rights not be guaranteed by either statute or contract, then the
Participant's status as an Eligible Employee will be deemed to terminate on the
ninety-first (91st) day of that leave and such Participant's purchase right for
the Purchase Interval in which that leave began shall thereupon terminate and
all of the Participant's payroll deductions for the Purchase Interval in which
such ninety-first (91st) day occurs shall be immediately refunded to the
Participant. An individual who returns to active employment following such a
leave shall be treated as a new Employee for purposes of the Plan and must, in
order to resume participation in the Plan, re-enroll in the Plan (by making a
timely filing of the prescribed enrollment forms) on or before the start date of
the new Purchase Interval.

                                      -5-
<PAGE>

               G.   CHANGE IN CONTROL. Each outstanding purchase right shall
automatically be exercised, immediately prior to the effective date of any
Change in Control, by applying the payroll deductions of each Participant for
the Purchase Interval in which such Change in Control occurs to the purchase of
whole shares of Common Stock at a purchase price per share equal to eighty-five
percent (85%) of the lower of (i) the Fair Market Value per share of Common
Stock on the Participant's Entry Date into the offering period in which such
Change in Control occurs or (ii) the Fair Market Value per share of Common Stock
immediately prior to the effective date of such Change in Control. However, the
applicable limitation on the number of shares of Common Stock purchasable per
Participant shall continue to apply to any such purchase, but not the limitation
applicable to the maximum number of shares of Common Stock purchasable in the
aggregate.

     The Corporation shall use its best efforts to provide at least ten (10)
days' prior written notice of the occurrence of any Change in Control, and
Participants shall, following the receipt of such notice, have the right to
terminate their outstanding purchase rights prior to the effective date of the
Change in Control.

               H.   PRORATION OF PURCHASE RIGHTS. Should the total number of
shares of Common Stock to be purchased pursuant to outstanding purchase rights
on any particular date exceed the number of shares then available for issuance
under the Plan, the Plan Administrator shall make a pro-rata allocation of the
available shares on a uniform and nondiscriminatory basis, and the payroll
deductions of each Participant, to the extent in excess of the aggregate
purchase price payable for the Common Stock pro-rated to such individual, shall
be refunded.

               I.   ASSIGNABILITY. The purchase right shall be exercisable only
by the Participant and shall not be assignable or transferable by the
Participant.

               J.   SHAREHOLDER RIGHTS. A Participant shall have no shareholder
rights with respect to the shares subject to his or her outstanding purchase
right until the shares are purchased on the Participant's behalf in accordance
with the provisions of the Plan and the Participant has become a holder of
record of the purchased shares.

     VIII.     ACCRUAL LIMITATIONS

               A.   No Participant shall be entitled to accrue rights to acquire
Common Stock pursuant to any purchase right outstanding under this Plan if and
to the extent such accrual, when aggregated with (i) rights to purchase Common
Stock accrued under any other purchase right granted under this Plan and (ii)
similar rights accrued under other employee stock purchase plans (within the
meaning of Code Section 423) of the Corporation or any Corporate Affiliate,
would otherwise permit such Participant to purchase more than Twenty-Five
Thousand Dollars ($25,000) worth of stock of the Corporation or any Corporate
Affiliate (determined on the basis of the Fair Market Value per share on the
date or dates such rights are granted) for each calendar year such rights are at
any time outstanding.

               B.   For purposes of applying such accrual limitations to the
purchase rights granted under the Plan, the following provisions shall be in
effect:

                                      -6-
<PAGE>

                    (i)    The right to acquire Common Stock under each
outstanding purchase right shall accrue in a series of installments on each
successive Purchase Date during the offering period on which such right remains
outstanding.

                    (ii)   No right to acquire Common Stock under any
outstanding purchase right shall accrue to the extent the Participant has
already accrued in the same calendar year the right to acquire Common Stock
under one (1) or more other purchase rights at a rate equal to Twenty-Five
Thousand Dollars ($25,000) worth of Common Stock (determined on the basis of the
Fair Market Value per share on the date or dates of grant) for each calendar
year such rights were at any time outstanding.

               C.   If by reason of such accrual limitations, any purchase right
of a Participant does not accrue for a particular Purchase Interval, then the
payroll deductions which the Participant made during that Purchase Interval with
respect to such purchase right shall be promptly refunded.

               D.   In the event there is any conflict between the provisions of
this Article and one or more provisions of the Plan or any instrument issued
thereunder, the provisions of this Article shall be controlling.

       IX.     EFFECTIVE DATE AND TERM OF THE PLAN

               A.   The Plan was adopted by the Board on September 29, 2000 and
shall become effective at the Effective Time, provided no purchase rights
granted under the Plan shall be exercised, and no shares of Common Stock shall
be issued hereunder, until (i) the Plan shall have been approved by the
shareholders of the Corporation and (ii) the Corporation shall have complied
with all applicable requirements of the 1933 Act (including the registration of
the shares of Common Stock issuable under the Plan on a Form S-8 registration
statement filed with the Securities and Exchange Commission), all applicable
listing requirements of any stock exchange (or the Nasdaq National Market, if
applicable) on which the Common Stock is listed for trading and all other
applicable requirements established by law or regulation. In the event such
shareholder approval is not obtained, or such compliance is not effected, within
twelve (12) months after the date on which the Plan is adopted by the Board, the
Plan shall terminate and have no further force or effect, and all sums collected
from Participants during the initial offering period hereunder shall be
refunded.

               B.   Unless sooner terminated by the Board, the Plan shall
terminate upon the earliest of (i) the tenth anniversary of the Effective Time,
(ii) the date on which all shares available for issuance under the Plan shall
have been sold pursuant to purchase rights exercised under the Plan or (iii) the
date on which all purchase rights are exercised in connection with a Change in
Control. No further purchase rights shall be granted or exercised, and no
further payroll deductions shall be collected, under the Plan following such
termination.

       X.      AMENDMENT/TERMINATION OF THE PLAN

               A.   The Board may alter, amend, suspend or terminate the Plan at
any time to become effective immediately following the close of any Purchase
Interval. However, the Plan may be amended or terminated immediately upon Board
action, if and to the extent necessary to

                                      -7-
<PAGE>

assure that the Corporation will not recognize, for financial reporting
purposes, any compensation expense in connection with the shares of Common Stock
offered for purchase under the Plan, should the financial accounting rules
applicable to the Plan at any time require the recognition of compensation
expense in the absence of such amendment or termination.

               B.   In no event may the Board effect any of the following
amendments or revisions to the Plan without the approval of the Corporation's
shareholders: (i) increase the number of shares of Common Stock issuable under
the Plan or the maximum number of shares purchasable per Participant or in the
aggregate by all Participants on any one Purchase Date, except for permissible
adjustments in the event of certain changes in the Corporation's capitalization,
(ii) alter the purchase price formula so as to reduce the purchase price payable
for the shares of Common Stock purchasable under the Plan or (iii) modify the
eligibility requirements for participation in the Plan.

       XI.     GENERAL PROVISIONS

               A.   All costs and expenses incurred in the administration of the
Plan shall be paid by the Corporation; however, each Plan Participant shall bear
all costs and expenses incurred by such individual in the sale or other
disposition of any shares purchased under the Plan.

               B.   Nothing in the Plan shall confer upon the Participant any
right to continue in the employ of the Corporation or any Corporate Affiliate
for any period of specific duration or interfere with or otherwise restrict in
any way the rights of the Corporation (or any Corporate Affiliate employing such
person) or of the Participant, which rights are hereby expressly reserved by
each, to terminate such person's employment at any time for any reason, with or
without cause.

               C.   The provisions of the Plan shall be governed by the laws of
the State of California without resort to that State's conflict-of-laws rules.

               D.   The Corporation and each Participating Corporation shall
have the right to take whatever steps the Plan Administrator deems necessary or
appropriate to comply with all applicable federal, state and local income and
employment tax withholding requirements, and the Corporation's obligations to
deliver shares under this Plan shall be conditioned upon compliance with all
such withholding tax requirements. Without limiting the generality of the
foregoing, the Corporation and each Participating Corporation shall have the
right to withhold taxes from any other compensation or other amounts which it
may owe to the Participant, or to require the Participant to pay to the
Corporation or the Participating Corporation the amount of any taxes which the
Corporation or the Participating Corporation may be required to withhold with
respect to such shares. In this connection, the Plan Administrator may required
the Participant to notify the Plan Administrator, the Corporation or a
Participating Corporation before the Participant sells or otherwise disposes of
any shares acquired under this Plan.

                                      -8-
<PAGE>

                                  SCHEDULE A
                                  ----------

                         CORPORATIONS PARTICIPATING IN
                         -----------------------------

                         EMPLOYEE STOCK PURCHASE PLAN
                         ----------------------------

                           AS OF THE EFFECTIVE TIME
                           ------------------------

                       Multilink Technology Corporation

                                  SCHEDULE A
                                      -1-
<PAGE>

                                   APPENDIX
                                   --------

     The following definitions shall be in effect under the Plan:

     A.   BOARD shall mean the Corporation's Board of Directors.

     B.   CASH EARNINGS shall mean the (i) base salary payable to a Participant
by one or more Participating Companies during such individual's period of
participation in one or more offering periods under the Plan plus (ii) all
overtime payments, bonuses, commissions, current profit-sharing distributions
and other incentive-type payments.  Such Cash Earnings shall be calculated
before deduction of (A) any income or employment tax withholdings or (B) any
pre-tax contributions made by the Participant to any Code Section 401(k) salary
deferral plan or any Code Section 125 cafeteria benefit program now or hereafter
established by the Corporation or any Corporate Affiliate.  However, Cash
Earnings shall not include any contributions made on the Participant's behalf by
the Corporation or any Corporate Affiliate to any employee benefit or welfare
plan now or hereafter established.

     C.   CHANGE IN CONTROL shall mean either of the following shareholder-
approved transactions to which the Corporation is a party:

          (i)    a shareholder-approved merger or consolidation in which
securities possessing more than fifty percent (50%) of the total combined voting
power of the Corporation's outstanding securities are transferred to a person or
persons different from the persons holding those securities immediately prior to
such transaction,

          (ii)   a sale, transfer or other disposition of all or substantially
all of the assets of the Corporation, or

          (iii)  the acquisition, directly or indirectly by any person or
related group of persons (other than the Corporation or a person that directly
or indirectly controls, is controlled by, or is under common control with, the
Corporation), of beneficial ownership (within the meaning of Rule 13d-3 of the
1934 Act) of securities possessing more than fifty percent (50%) of the total
combined voting power of the Corporation's outstanding securities pursuant to a
tender or exchange offer made directly to the Corporation's shareholders.

     D.   CODE shall mean the Internal Revenue Code of 1986, as amended.

     E.   COMMON STOCK shall mean the Corporation's Class A common stock.

     F.   CORPORATE AFFILIATE shall mean any parent or subsidiary corporation of
the Corporation (as determined in accordance with Code Section 424), whether now
existing or subsequently established.

     G.   CORPORATION shall mean Multilink Technology Corporation, a California
corporation, and any corporate successor to all or substantially all of the
assets or voting stock of Multilink Technology Corporation which shall by
appropriate action adopt the Plan.

                                   APPENDIX
                                      -1-
<PAGE>

     H.   EFFECTIVE TIME shall mean the time at which the Underwriting Agreement
is executed and the Common Stock priced for the initial public offering. Any
Corporate Affiliate which becomes a Participating Corporation after such
Effective Time shall designate a subsequent Effective Time with respect to its
employee-Participants.

     I.   ELIGIBLE EMPLOYEE shall mean any person who is employed by a
Participating Corporation on a basis under which he or she is regularly expected
to render more than twenty (20) hours of service per week for more than five (5)
months per calendar year for earnings considered wages under Code Section
3401(a).

     J.   ENTRY DATE shall mean the date an Eligible Employee first commences
participation in the offering period in effect under the Plan. The earliest
Entry Date under the Plan shall be the Effective Time.

     K.   FAIR MARKET VALUE per share of Common Stock on any relevant date shall
be determined in accordance with the following provisions:

          (i)    If the Common Stock is at the time traded on the Nasdaq
National Market, then the Fair Market Value shall be the closing selling price
per share of Common Stock on the date in question, as such price is reported on
the Nasdaq National Market. If there is no closing selling price for the Common
Stock on the date in question, then the Fair Market Value shall be the closing
selling price on the last preceding date for which such quotation exists.

          (ii)   If the Common Stock is at the time listed on any Stock
Exchange, then the Fair Market Value shall be the closing selling price per
share of Common Stock on the date in question on the Stock Exchange determined
by the Plan Administrator to be the primary market for the Common Stock, as such
price is officially quoted in the composite tape of transactions on such
exchange. If there is no closing selling price for the Common Stock on the date
in question, then the Fair Market Value shall be the closing selling price on
the last preceding date for which such quotation exists.

          (iii)  For purposes of the initial offering period which begins at the
Effective Time, the Fair Market Value shall be deemed to be equal to the price
per share at which the Common Stock is sold in the initial public offering
pursuant to the Underwriting Agreement.

     L.   1933 ACT shall mean the Securities Act of 1933, as amended.

     M.   1934 ACT shall mean the Securities Exchange Act of 1934, as amended.

     N.   PARTICIPANT shall mean any Eligible Employee of a Participating
Corporation who is actively participating in the Plan.

     O.   PARTICIPATING CORPORATION shall mean the Corporation and such
Corporate Affiliate or Affiliates as may be authorized from time to time by the
Board to extend the benefits of the Plan to their Eligible Employees. The
Participating Corporations in the Plan are listed in attached Schedule A.

                                   APPENDIX
                                      -2-
<PAGE>

     P.   PLAN shall mean the Corporation's 2000 Employee Stock Purchase Plan,
as set forth in this document.

     Q.   PLAN ADMINISTRATOR shall mean the committee of two (2) or more Board
members appointed by the Board to administer the Plan.

     R.   PURCHASE DATE shall mean the last business day of each Purchase
Interval. The initial Purchase Date shall be June 30, 2001.

     S.   PURCHASE INTERVAL shall mean each successive six (6)-month period
within the offering period at the end of which there shall be purchased shares
of Common Stock on behalf of each Participant.

     T.   SEMI-ANNUAL ENTRY DATE shall mean the first business day in July and
January each year on which an Eligible Employee may first enter an offering
period.

     U.   STOCK EXCHANGE shall mean either the American Stock Exchange or the
New York Stock Exchange.

     V.   UNDERWRITING AGREEMENT shall mean the agreement between the
Corporation and the underwriter or underwriters managing the initial public
offering of the Common Stock.

                                   APPENDIX
                                      -3-<PAGE>

                                                                   EXHIBIT 10.16

                           SECOND AMENDMENT TO LEASE

This Second Amendment to Lease is attached to and forms a part of that certain
Lease dated March 10, 1999 and Lease Amendment Number One dated March 10, 1999
(hereinafter collectively called the "Lease"), made this 12th day of October,
2000 between SPIEKER PROPERTIES, L.P., a California limited partnership, as
Landlord and MULTILINK TECHNOLOGY CORPORATION, a California corporation as
Tenant, for the Premises commonly known as Garden Level in the building located
at 2850 Ocean Park Boulevard, Santa Monica, California 90405.

Effective October 12, 2000, the Lease will be amended as follows to provide for
the renewal of term and the expansion of premises.

RENEWAL PREMISES
----------------

Building. 2850 Ocean Park Boulevard, Santa Monica, California.
--------

Renewal Premises. The Renewal Premises to include that portion of the Building
----------------
consisting of approximately 4,681 rentable square feet commonly referred to as
Garden Level, Suite 330 consisting of approximately 2,361 rentable square feet
and Suite 335 consisting of approximately 2,635 rentable square feet, as shown
on the attached Exhibit "A."

Renewal Term. The renewal term shall commence October 1, 2000 and expire
------------
December 31, 2005.

Monthly Base Rent. The monthly full service gross Base Rent for the Renewal
-----------------
Premises shall be as follows:

<TABLE>
<S>                                               <C>
     October 1, 2000 - December 31, 2001          $27,579.45 per month ($2.85/rsf)
     January 1, 2002 - December 31, 2002          $28,643.92 per month ($2.96/rsf)
     January 1, 2003 - December 31, 2003          $29,805.16 per month ($3.08/rsf)
     January 1, 2004 - December 31, 2004          $30,966.40 per month ($3.20/rsf)
     January 1, 2005 - December 31, 2005          $32,224.41 per month ($3.33/rsf)
</TABLE>

EXPANSION PREMISES
------------------

Building:  2850 Ocean Park Boulevard, Santa Monica, California.
--------

Premises:  The Premises to include that portion of the Building consisting of
--------
approximately 19,924 rentable square feet commonly referred to as Suite 100
which is not cross hatched on the attached Exhibit "B."

Expansion Term. The term shall commence on the earlier of (a) occupancy by
--------------
Tenant of more than 3,000 useable square feet of the Expansion Premises for
business purposes or (b) thirty (30) days following Landlord's "delivery," as
such term is defined in the Paragraph below entitled "Alterations," of the
Expansion Premises to Tenant, whether or not Tenant commences business therefrom
(the "Expansion Premises Commencement Date"), and expire on December 31, 2005.

If for any reason Landlord cannot deliver possession of the Expansion Premises
to Tenant on or prior to January 1, 2001, despite using Landlord's reasonable
good faith efforts and subject to delays caused by Tenant or by events beyond
Landlord's control and other force majeure events, including, but not limited
to, strikes, material shortages, delays of governmental agencies or Acts of God,
which delays will not be cause for termination hereunder, Tenant may, by written
notice to Landlord, terminate the Lease and this Second Amendment and Tenant
shall thereafter have one hundred eighty (180) days to vacate the Renewal
Premises. Tenant shall be liable for Rent for the Renewal Premises for the
period commencing October 1, 2000 until the termination date.

Upon Landlord's request, Tenant shall promptly execute and return to Landlord an
accurate "Start-Up Letter" in which Tenant shall agree, among other things, to
acceptance of the

                                      -1-
<PAGE>

Expansion Premises and to the determination of the Expansion Premises
Commencement Date in accordance with the terms of this Second Amendment to
Lease, but Tenant's failure or refusal to do so shall not negate Tenant's
acceptance of the Expansion Premises or affect determination of the Expansion
Premises Commencement Date.

Monthly Base Rent. The monthly full service gross Base Rent for the Expansion
-----------------
Premises shall be as follows:

     Expansion Premises
     Commencement Date - December 31, 2001     $56,783.40 per month ($2.85/rsf)
       January 1, 2002 - December 31, 2002     $58,975.04 per month ($2.96/rsf)
       January 1, 2003 - December 31, 2003     $61,365.92 per month ($3.08/rsf)
       January 1, 2004 - December 31, 2004     $63,756.90 per month ($3.20/rsf)
       January 1, 2005 - December 31, 2005     $66,346.92 per month ($3.33/rsf)

REMAINING PROVISIONS APPLICABLE RENEWAL PREMISES & EXPANSION PREMISES:
---------------------------------------------------------------------

Tenant's Proportionate Share of Building:  Tenant's percentage Proportionate
----------------------------------------
Share of Building for the Renewal Premises and Expansion Premises shall be
20.55%

Base Year for Operation Expenses.  Base Year for the Renewal Term and Extension
--------------------------------
Term shall be calendar year 2001.

Proposition 13 Protection.  Despite any other provision of this Lease, if any
-------------------------
sale, refinancing, or change in ownership of the Project is consummated and, as
a result, all or part of the Project is reassessed ("Reassessment") for real
estate tax purposes by the appropriate government authority under the terms of
Proposition 13 (as adopted by the voters of the State of California in the June
1978 election) or any similar statute, the terms of this Paragraph shall apply.

     I.   For purposes of this Paragraph the term "Tax Increase" shall mean that
     portion of the Taxes, as calculated immediately following the Reassessment
     that is attributable solely to the Reassessment.  Accordingly, a Tax
     Increase shall not include any portion of the Taxes, as calculated
     immediately following the Reassessment, that is:

          (1)  Attributable to the initial assessment of the value of the
          Project, the base, shell and core of the Project, or the tenant
          improvements located in the Project;

          (2)  Attributable to assessments pending immediately before the
          Reassessment, but not otherwise excludable, that were conducted
          during, and included in, that Reassessment or that otherwise rendered
          unnecessary following the Reassessment;

          (3)  Attributable to the annual inflationary increase in Taxes; or

          (4)  Part of Taxes incurred or considered to be incurred during the
          applicable Base Year as determined under this Lease.

     II.  Tenant shall not be obligated to pay the portion of any Tax Increase
     relating to any Reassessment of the Project in accordance with the
     following schedule:

          Date of Reassessment Event             Percent of Tax Increase Which
          --------------------------             Tenant is Protected Against Due
                                                 to Reassessment Event
                                                 ---------------------

                                      -2-
<PAGE>

          Expansion Premises
          Commencement Date - December 31, 2001             100%
          January 1, 2002 - December 31, 2002                80%
          January 1, 2003 - December 31, 2003                60%
          January 1, 2004 - December 31, 2004                40%
          January 1, 2005 - December 31, 2005                20%

     III.  The amount of Taxes that Tenant is not obligated to pay or shall not
     be obligated to pay during the Term in connection with a particular
     Reassessment under the terms of this Paragraph shall be referred to as the
     Proposition 13 Protection Amount. If a Reassessment is reasonably
     forseeable by Landlord and the Proposition 13 Protection Amount
     attributable to that Reassessment may be reasonably quantified or estimated
     for each Lease Year beginning with the Lease Year in which the Reassessment
     will occur, the terms of this Paragraph shall apply to each such
     Reassessment. "Lease Year" shall be defined as each 12-month period
     commencing on January 1, 2001. On notice to Tenant, Landlord shall have the
     right to purchase the entire Proposition 13 Protection Amount relating to
     the applicable Reassessment ("Applicable Reassessment"), at any time during
     the Term, by paying to Tenant an amount equal to the "Proposition 13
     Purchase Price," as defined below, for the Applicable Reassessment as long
     as the right of any successor of Landlord to exercise its right of
     repurchase under this Lease shall not apply to any Reassessment that
     results from the event under which that successor became Landlord under
     this Lease. As used in this Lease, the term "Proposition 13 Purchase Price"
     shall mean the present value of the Proposition 13 Protection Amount
     remaining during the Term, as of the date of payment of the Proposition 13
     Purchase Price by Landlord. The present value shall be calculated by:

               (1)  Using the portion of the Proposition 13 Protection Amount
               attributable to each remaining Lease Year (as though the portion
               of that Proposition 13 Protection Amount benefited Tenant at the
               end of each Lease Year) at the amounts to be discounted, and

               (2)  Using discount rates for each amount to be discounted equal
               to.

                    (A)  The average rates of yield for United States Treasury
                    Obligations with maturity dates as close as reasonably
                    possible to the end of each Lease Year during which the
                    portions of the Proposition 13 Protection Amount would have
                    benefited Tenant using the rates in effect as of Landlord's
                    exercise of its right to purchase, as set forth in this
                    Paragraph; plus

                    (B)  one percent (1%) per annum.

               On payment of the Proposition 13 Purchase Price, subparagraph (a)
               of this Paragraph shall not apply to any Taxes attributable to
               the Applicable Reassessment. Because Landlord is estimating the
               Proposition 13 Purchase Price because a Reassessment has not yet
               occurred, an adjustment

                                      -3-
<PAGE>

                      shall be made when a Reassessment occurs. If Landlord has
                      underestimated the Proposition 13 Purchase Price, Landlord
                      shall, on notice to Tenant, credit Tenant's Rent next due
                      with the amount of that underestimation (and Landlord's
                      successor in interest shall be bound by any such
                      underestimation). If Landlord has overestimated the
                      Proposition 13 Purchase Price, Landlord shall, on notice
                      to Tenant, increase Tenant's Rent next due by the amount
                      of the overestimation

Occupancy Density.  Notwithstanding anything to the contrary contained in this
-----------------
Lease, the Occupancy Density shall be five (5) persons per 1,000 rentable square
feet. "Occupancy Density" shall mean the number of full time employees of Tenant
who are primarily located at the Premises but specifically not including
invitees, visitors, contractors, consultants or employees temporarily visiting
from other locations. Notwithstanding anything to the contrary contained herein,
in the event the Occupancy Density in the Renewal Premises and Expansion
Premises during the Term exceeds 5 people per 1,000 rentable square feet
(currently 148 people) in the Renewal Premises and Expansion Premises (the "5
Threshold Figure") at any time, from and after the date the Occupancy Density
first exceeds the 5 Threshold Figure, the Base Rent shall be increased by an
amount equal to $.05 per rentable square foot of the Renewal Premises and
Expansion Premises per month for the balance of the Term, regardless of whether
the Occupancy Density is thereafter decreased below the 5 Threshold Figure.  In
the event the Occupancy Density in the Renewal Premises and Expansion Premises
during the Term exceeds 6 people per 1,000 rentable square feet (currently 178
people) in the Renewal Premises and Expansion Premises (the "6 Threshold
Figure") at any time, from and after the date the Occupancy Density first
exceeds the 6 Threshold Figure, the Base Rent shall be increased by an amount
equal to $.10 per rentable square foot of the Renewal Premises and Expansion
Premises per month for the balance of the Term, regardless of whether the
Occupancy Density is thereafter decreased below the 6 Threshold Figure. In the
event the Occupancy Density in the Renewal Premises and Expansion Premises
during the Term exceeds 7 people per 1,000 rentable square feet (currently 207
people) in the Renewal Premises and Expansion Premises (the "7 Threshold
Figure") at any time, from and after the date the Occupancy Density first
exceeds the 7 Threshold Figure, the Base Rent shall be increased by an amount
equal to $.20 per rentable square foot of the Renewal Premises and Expansion
Premises per month for the balance of the Term, regardless of whether the
Occupancy Density is thereafter decreased below the 7 Threshold Figure.

Parking.  Tenant shall have the right, but not the obligation, to lease up to
-------
3.5 unreserved parking spaces for every one thousand (1,000) rentable square
feet of the Premises leased, from time to time, at the current market rate which
is $60.00 per space per month exclusive of city taxes.  This parking right shall
replace all previous rights granted in the Lease and subsequent Amendments.
Tenant may convert up to thirty-seven (37) of the total spaces to reserved
parking in the subterranean parking lot at 2850 Ocean Park Boulevard. The
reserved parking shall be in the form of seven (7) single spaces at the reserved
rate of $85.00 per space per month, exclusive of city taxes, and fifteen (15)
tandem stalls (30 spaces) at the reserved rate of $120.00 per tandem stall per
month exclusive of city taxes.  Tenant may change the amount of spaces leased by
Tenant from time to time, including reserved spaces, upon thirty (30) days prior
written notice.

Right at First Offer.  Provided Tenant is not in default of any terms and
--------------------
conditions of this Lease beyond all applicable notice and cure periods, Tenant
shall have a continuous right of first offer to lease the Right of First Offer
Space detailed below throughout the Expansion Term at the then current
prevailing market terms and conditions.

          First Offer Space
          -----------------

          Suite 150               Approximately 24,921 rentable square feet -
                                  Subordinate to the lease to be signed
                                  concurrently with Tenant
          Suites 230-270-280-290  Approximately 8,775 rentable square feet
          Suite 292               Approximately 3,229 rentable square feet

                                      -4-
<PAGE>

          Suite 325           Approximately 3,240 rentable square feet

          Second Offer Space (Subordinate to Vizional Technologies rights)
          ----------------------------------------------------------------

          Suite 225           Approximately 12,364 rentable square feet

Landlord shall notify Tenant in writing of the availability of space and the
terms and conditions upon which Landlord is willing to lease such additional
space to a third party tenant. The proposed terms and conditions shall be based
upon comparable lease transactions within the Santa Monica Business Park which
have occurred during the previous six months, adjusted for differences in size,
location, length of term, level of existing improvements, tenant improvement
allowance provided, length of buildout, as applicable, commissions paid and any
other concessions. The proposed terms and conditions shall also be modified to
reflect changes which have occurred in the Santa Monica market since the
comparable deals were completed, as applicable, and adjusted to reflect a term
that is coterminous with the First Offer Space. Tenant shall have five (5)
business days after such determination to notify Landlord in writing of Tenant's
desire to exercise Tenant's right of first offer on the terms and conditions as
set forth above. In the event Tenant fails to give Landlord notice of Tenant's
election to lease such additional space within such time period, Tenant shall
have no further right, title or interest in such additional space and this right
of first offer shall terminate with respect to the space identified in such
notice. If, on the other hand, Tenant exercises its right of first offer in the
manner prescribed, Tenant shall immediately deliver to Landlord payment for the
first month's rent for such additional space (in the same manner as provided
for in this Lease), and the lease for such additional space shall be consummated
without delay in accordance with the terms and conditions set forth in
Landlord's notice and shall be coterminous with this Lease. Notwithstanding
anything to the contrary herein contained, Tenant's right to the first offer
premises shall be conditioned upon the following: (i) at the time Tenant agrees
to accept the first offer premises and at the time of the commencement of the
term for the first offer premises, Tenant shall be in possession of and
occupying at least ninety percent (90%) of the primary premises for the conduct
of its business therein and not more than ten percent (10%) of the same shall be
occupied by any assignee, subtenant or licensee and, provided further, that the
option for additional space shall be applicable hereunder only if the first
offer premises will actually be occupied by Tenant and (ii) the agreement of
acceptance shall constitute a representation by Tenant to Landlord, effective as
of the date of the agreement of acceptance and as of the date of commencement of
the lease for the first offer premises, that Tenant does not intend to assign
the lease for the first offer premises, in whole or in part or sublet all or any
portion of the Premises, the election to expand being for the purpose of
utilizing the first offer premises for Tenant's purposes in the conduct of
Tenant's business therein.

Advance Rents/Security Deposit.  Tenant shall remit the first month's Base Rent
------------------------------
for the Expansion Premises in the amount of $56,793.40 at such time as this
Second Amendment is executed and returned to Landlord.  Additionally, upon
execution, Tenant shall increase the existing cash Security Deposit of
$19,135.70 or provide a Letter of Credit in an amount equal to $197,142.66.

1.   Delivery of Letter of Credit.  In accordance with the provisions of this
Section, if at any time during the Expansion Term Tenant elects to provide a
Letter of Credit in lieu of a cash Security Deposit, Tenant shall have the
option to deliver to Landlord and cause to be in effect during the Lease Term an
unconditional, irrevocable letter of credit ("LOC") in the amount specified
above (the "LOC Amount") for an initial term of the LOC of one (1) year and
thereafter shall renew automatically from year to year through 30 days beyond
the expiration date of this Lease or any extension thereto.  Landlord shall use
its best efforts to return the cash Security Deposit as expeditiously as
possible, which shall be delivered to Tenant no later than fifteen (15) days
after receipt of an LOC which satisfies the requirements set forth herein.  The
LOC shall be in a form reasonably acceptable to Landlord and shall be issued by
an LOC bank selected by Tenant and reasonably acceptable to Landlord.  The LOC
shall survive termination of this Lease.  An LOC bank is a bank that accepts
deposits, maintains accounts, has a local office that will negotiate a letter of
credit, and the deposits of which are insured by the Federal Deposit Insurance
Corporation.  Tenant shall pay all expenses, points, or fees incurred by Tenant
in obtaining the LOC.  The LOC shall not be mortgaged, assigned or encumbered
in any manner

                                      -5-
<PAGE>

whatsoever by Tenant without the prior written consent of Landlord.  Tenant
acknowledges that Landlord has the right to transfer or mortgage its interest in
the Project, the Building and in this Lease and Tenant agrees that in the event
of any such transfer or mortgage, Landlord shall have the right to transfer or
assign the LOC and/or the LOC Security Deposit (as defined below) to the
transferee or mortgagee, and in the event of such transfer, Tenant shall look
solely to such transferee or mortgagee for the return of the LOC and/or the LOC
Security Deposit.  Tenant shall, within ten (10) business days of request by
Landlord, execute such further instruments or assurances as Landlord may
reasonably deem necessary to evidence or confirm Landlord's transfer or
assignment of the LOC Security Deposit and/or the LOC to such transferee or
mortgagee.

2.   Replacement of Letter of Credit.  Tenant may, from time to time, replace
any existing LOC with a new LOC if the new LOC (a) becomes effective before
expiration of the LOC that it replaces; (b) is in the required LOC amount; (c)
is issued by an LOC bank reasonably acceptable to Landlord; and (d) otherwise
complies with the requirements of this Paragraph.

3.   Landlord's Right to Draw on Letter of Credit.  The LOC shall be held by
Landlord as security for the faithful performance by Tenant of all the terms,
covenants, and conditions of this Lease to be kept and performed by Tenant
during the Lease Term.  The LOC shall not be mortgaged, assigned or encumbered
in any manner whatsoever by Tenant without the prior written consent of
Landlord. Landlord shall hold the LOC as security for the performance of
Tenant's obligations under this Lease.  If, after notice and failure to cure
within any applicable period provided in this Lease, Tenant defaults on any
provision of this Lease, Landlord may, without prejudice to any other remedy it
has, draw on all or any portion of the LOC necessary to (a) pay Rent or other
sum in default; (b) pay or reimburse Landlord for any amount that Landlord may
spend or become obligated to spend in exercising Landlord's rights under
Paragraph 30 (Right of Landlord to Perform Tenant's Covenant); and/or (c)
compensate Landlord for any expense, loss, or damage that Landlord may suffer
because of Tenant's default.  The use, application or retention of the LOC, or
any portion thereof, by Landlord shall not prevent Landlord from exercising any
other right or remedy provided by this Lease or by law, it being intended that
Landlord shall not first be required to proceed against the LOC and shall not
operate as a limitation on any recovery to which Landlord may otherwise be
entitled.  If Tenant fails to renew or replace the LOC at least thirty (30)
days before its expiration, Landlord may, without prejudice to any other remedy
it has, draw on the entire amount of the LOC.

4.   LOC Security Deposit.  Any amount of the LOC that is drawn on by Landlord
but not applied by Landlord shall be held by Landlord as a security deposit (the
"LOC Security Deposit") in accordance with Paragraph 19 of the Lease.

5.   Restoration of Letter of Credit and LOC Security Deposit.  If Landlord
draws on all or any portion of the LOC and/or applies all or any portion of such
draw, Tenant shall, within five (5) business days after demand by Landlord,
either (a) deposit cash with Landlord in an amount that, when added to the
amount remaining under the LOC and the amount of the LOC Security Deposit, shall
equal the LOC Amount then required under this Paragraph; or (b) reinstate the
LOC to the full LOC Amount, and Tenant's failure to do so shall be a default
under this Lease.

Financial Statements.  Article 17 of the Lease shall be modified to reflect
--------------------
that, during the lease term, upon Landlord's written request, Tenant shall
provide Landlord with the most recent audited financial statements prepared in
the ordinary course of business which statements shall be furnished to Landlord
following Landlord's execution of a commercially reasonable confidentiality
agreement, but not more often than two (2) times per year.

Services and Utilities.  The last sentence of Article 15B of the Lease is hereby
----------------------
deleted in its entirety and replaced with the following:

"In the event that Tenant is prevented from using, and does not use, the
Premises or any portion thereof, for five (5) consecutive business days or
fifteen (15) business days in any twelve (12) month period following Landlord's
receipt of written notice from Tenant (the "Eligibility Period") as a result of
any (i) repair, maintenance or alteration performed by Landlord, or which
Landlord failed to perform and which was required by this Lease (which is not
necessitated by

                                      -6-
<PAGE>

the negligence of Tenant or its employees, agents, contractors or invitees) and
which substantially interferes with Tenant's use of the Premises, and (ii)
interruption in any of the following building services required to be provided
by Landlord (so long as it is not due to the fault or neglect of Tenant, its
agents, employees, contractors or invitees): heating, ventilation and air
conditioning, electrical services, janitorial service or water or any other
"essential" building service (each such circumstance to be known as an
"Abatement Event"), then Tenant's rent and parking charges shall be abated or
reduced, as the case may be, after expiration of the Eligibility Period for
such time that Tenant continues to be so prevented from using, and does not use,
the Premises, or a portion thereof, in the proportion that the rentable area of
the portion of the Premises, that Tenant is prevented from using, and does not
use, bears to the total rentable area of the Premises. However, in the event
that Tenant is prevented from conducting, and does not conduct, its business in
any portion of the Premises for a period of time in excess of the Eligibility
Period, and the remaining portion of the Premises is not sufficient to allow
Tenant to effectively conduct its business therein, and if Tenant does not
conduct its business from such remaining portion, then for such time after
expiration of the Eligibility Period during which Tenant is so prevented from
effectively conducting its business therein, the rent for the entire Premises
and all of Tenant's parking charges shall be abated; provided, however, if
Tenant reoccupies and conducts its business from any portion of the Premises
during such period, the rent and parking charges allocable to such reoccupied
portion, based on the proportion that the rentable area of such reoccupied
portion of the Premises bears to the total rentable area of the Premises, shall
be payable by Tenant from the date such business operations commence.
Notwithstanding anything to the contrary contained herein, the terms of Article
23 and 24 shall govern and control Tenant's right to any rental abatement as a
result of any event covered by Article 23 or 24 below."

Commission.  Landlord shall pay a commission to Westmac Commercial Brokerage
----------
Company who has represented Tenant in this transaction.  The commission shall be
equal to four percent (4%) of the total Basic Monthly Rent payable pursuant to
this Second Amendment to Lease for the Renewal Premises and Expansion Premises.
One half of the total commission shall be paid to Westmac upon full execution
and delivery of this Amendment and the second half shall be paid to Westmac upon
the Expansion Premises Commencement Date.

Services and Utilities.  Notwithstanding anything to the contrary contained in
----------------------
the Lease, Paragraph 15A of the Lease is hereby deleted in its entirety and
replaced with the following:

"Subject to the provisions elsewhere herein contained and to the rules and
regulations of the Building, Landlord shall furnish to the Premises during
Business Hours (but exclusive, in any event, of Saturdays and Sundays and
generally recognized legal holidays), water for kitchen, lavatory and drinking
purposes and electricity, heat and air conditioning as usually furnished or
supplied for use of the Premises for reasonable and normal office use
(consistent with other tenants in the Building).  Notwithstanding the foregoing,
and subject to all of the other terms and conditions of this Lease, water,
elevator service and electricity shall be furnished or supplied for use of the
Premises twenty-four (24) hours per day, three hundred sixty-five (365) days per
year.  The term "Business Hours" shall mean 7:00 a.m. to 6:00 p.m., Monday
through Friday.

Landlord shall provide as part of Operating Expenses adequate electrical wiring,
facilities and power for normal general office use as reasonably determined by
Landlord (but not including above-standard or continuous cooling for excessive
heat-generating machines, excess lighting or equipment), and elevator service,
which shall mean service either by non-attended automatic elevators or elevators
with attendants, or both, at the option of Landlord.  For purposes of this
Paragraph, the term "power for normal general office use" shall equal
approximately five (5) watts connected load per usable square foot of the
premises on an annual basis.

Tenant shall have the right to install its own supplemental air-conditioning
unit (the cost of which, if installed concurrently with the construction of the
Tenant Improvements, may be applied against any unused tenant improvement
allowance), provided that Landlord approves the installation of such unit and
the same does not interfere with the operation systems and equipment, including
without limitation, the Building heating, ventilation and air-conditioning
systems (as determined by Landlord in its reasonable discretion); provided,
however, (i) Tenant shall be solely responsible for all costs relating to the
installation and operation of such unit, and

                                      -7-
<PAGE>

shall, upon Landlord's request, Tenant shall remove such unit upon the
expiration or earlier termination of the Term, (ii) Tenant shall cause such unit
to be separately metered at Tenant's expense, and (iii) Tenant shall pay
Landlord the then current monthly roof rental rates associated with supplemental
air-conditioning units, which is currently $250.00 per unit per month. Landlord
shall provide janitorial services five (5) days per week which are comparable to
services provided by comparable buildings in the vicinity of the Building.

Landlord agrees to provide a card key access system to control access to the
Building's parking facility and for after-hours access to the Building.
Furthermore, Landlord will maintain reasonable security measures at the Project,
as determined by Landlord in its reasonable discretion given the character and
nature of the Project.  Subject Landlord's approval as to the method of
installation and type of security system, Tenant shall have the right to install
its own security system and/or personnel provided (i) Landlord and its agents,
representatives and employees shall be able to reasonably access the Premises
for any purposes for which Landlord is entitled to access the Premises under
this Lease (including, without limitation, for emergency purposes), (ii) the
same does not interfere with the Building systems or equipment, (iii) Tenant
shall indemnify, defend and hold harmless Landlord from and against any and all
claims, loss, damage or expenses suffered by Landlord resulting from or arising
out of the installation of said security system or maintenance of security
personnel, and (iv) upon Landlord's request, Tenant shall remove any such system
upon the expiration or earlier termination of this Lease and repair any damage
caused by such removal.

Landlord shall provide after-hours heating or air-conditioning, at Tenant's
request and Tenant shall pay to Landlord a reasonable charge for such services
as reasonably determined by Landlord (which charge is currently $25.00 per
unit/zone per hour, such charge to include Landlord's actual cost plus a
reasonable administration fee). Tenant agrees to keep and cause to be kept
closed all window covering when necessary because of the sun's position, and
Tenant also agrees at all times to cooperate fully with Landlord and to abide by
all of the reasonable, non-discriminatory regulations and requirements which
Landlord may prescribe for the proper functioning and protection of electrical,
heating, ventilating and air conditioning systems. Wherever heat-generating
machines, excess lighting or equipment are used in the Premises which affect the
temperature otherwise maintained by the air conditioning system (other than
standard general office equipment), Landlord reserves the right to install
supplementary air conditioning units in the Premises and the cost thereof,
including the cost of installation and the cost of operation and maintenance
thereof, shall be paid by Tenant to Landlord within thirty (30) days after
demand by Landlord.

In the event that Tenant requires utilities (other than electricity, water and
HVAC) and/or services in excess of what Landlord is required to provide during
Business Hours, Landlord agrees to use its commercially reasonable efforts to
provide such extra utilities and services, and Tenant agrees to pay to Landlord
its then standard charge for any such extra utilities or services."

Operating Expenses.  Notwithstanding anything to the contrary contained in the
------------------
Lease, the following shall be added to the end of Paragraph 7(A):

"Landlord (i) shall not collect or be entitled to collect from Tenant an amount
in excess of Tenant's Proportionate Share of one hundred percent (100%) of the
Operating Expenses actually paid or incurred by Landlord; and (ii) shall reduce
the amount of the Operating Expenses by any refund or discount received by
Landlord in connection with any expenses previously included in the Operating
Expenses (such reduction to be credited to Tenant in the year in which the
refund or discount is received by Landlord).  The deductible portion of any
repair costs covered by earthquake insurance shall be amortized over a ten (10)
year period.  Notwithstanding the foregoing, for purposes of this Lease, the
Operating Expenses shall not, however, include:

        (1) bad debt expenses and interest, principal, points and fees on debts
        (except in connection with the financing of items which may be included
        in the Operating Expenses) or amortization on any mortgage or mortgages
        or any other debt instrument encumbering the Building or the Project;

        (2) marketing costs, including leasing commissions, attorneys' fees in
        connection with the negotiation and preparation of letters, deal memos,
        letters of intent, leases,

                                      -8-
<PAGE>

sublease and/or assignments, space planning costs, and other costs and expenses
incurred in connection with lease, sublease and/or assignment negotiations and
transactions with present or prospective tenants or other occupants of the
Project, including attorneys' fees and other costs and expenditures incurred in
connection with disputes with present or prospective tenants or other occupants
of the Project;

(3)  costs of inspecting and correcting defects in the Project (including
without limitation, defects discovered as a result of earthquake damage and any
other patent or latent defects in the Project) and costs, including permit,
license and inspection costs, incurred with respect to the installation of other
tenants' or occupants' improvements made for tenants or other occupants in the
Project or incurred in renovating or otherwise improving, decorating, painting
or redecorating vacant space for tenants or other occupants in the Project;

(4)  the cost of providing any service directly to and paid directly by any
tenant;

(5)  any costs expressly excluded from the Operating Expenses elsewhere in this
Lease;

(6)  costs of any items (including, but not limited to, costs incurred by
Landlord for the repair or damage to the Project or Building) to the extent
Landlord receives reimbursement from insurance proceeds (such proceeds to be
deducted from the Operating Expenses in the year in which received) or from a
third party (such proceeds to be credited to the Operating Expenses in the year
in which received, except that any deductible amount under any insurance policy
shall be included within the Operating Expenses of the Project);

(7)  costs of a capital nature, including, without limitation, capital
improvements, capital repairs and capital equipment, except for those (i)
acquired to reduce the Operating Expenses (amortized at an annual rate
reasonably calculated to equal the amount of the Operating Expenses to be saved
in each calendar year throughout the Term of the Lease, as reasonably determined
at the time Landlord elected to proceed with the capital improvement or
acquisition of the capital equipment to reduce the Operating Expenses), together
with interest at the actual interest rate incurred by Landlord, or (ii) incurred
after the Term Commencement Date in order to comply with any governmental law or
regulation that was enacted subsequent to the Term Commencement Date (but
specifically not including any re-enactment or subsequent codification, local or
otherwise, of any laws or regulations existing as of the Term Commencement Date,
including without limitation, the Americans with Disabilities Act or any state
or local codifications thereof) provided that such capital costs shall be
amortized over their useful life, together with interest at the actual interest
rate incurred by Landlord; all other capital expenditures and improvements shall
be excluded from the Operating Expenses.

(8)  rentals and other related expenses for leasing a HVAC system, elevators,
other items (except when needed in connection with normal repairs and
maintenance of the Project) which, if purchased, rather than rented, would
constitute a capital improvement not included in the Operating Expenses pursuant
to this Lease;

(9)  depreciation, amortization and interest payments, except as specifically
included in the Operating Expenses pursuant to the terms of this Lease and
except on materials, tools, supplies and vendor-type equipment purchased by
Landlord to enable Landlord to supply services Landlord might otherwise contract
for with a third party, where such depreciation, amortization and interest
payments would otherwise have been included in the charge for such third party's
services, all as determined in accordance with generally accepted accounting
principles, consistently applied, and when depreciation or amortization is
permitted or required, the item shall be amortized over its reasonably
anticipated useful life;

(10)  costs incurred by Landlord for alterations (including structural
additions), repairs, equipment and tools which are a capital nature and/or
which are considered capital improvements or replacements under generally
accepted accounting principles,

                                      -9-
<PAGE>

     consistently applied, except as specifically included in the Operating
     Expenses pursuant to the terms of this Lease;

     (11) expenses in connection with services or other benefits which are not
     offered to Tenant or for which Tenant is charged for directly but which are
     provided to another tenant or occupant of the Project, without charge;

     (12) costs incurred by Landlord due to the violation by Landlord or any
     tenant of the terms and conditions of any lease of space in the Project;

     (13) overhead and profit increment paid to Landlord or to subsidiaries or
     affiliates of Landlord for goods and/or services in the Project to the
     extent the same exceeds the costs of such by unaffiliated third parties on
     a competitive basis;

     (14) Landlord's general corporate overhead and general and administrative
     expenses, excluding on-site management to the level of Project director
     (and/or vice president responsible for the Project) and Project engineer
     and on-site accounting attributable to the Project, but including costs
     associated with the operation of the business of the ownership or entity
     which constitutes "Landlord," as distinguished from the costs of building
     operations, including, but not limited to, partnership accounting and legal
     matters, costs of defending any lawsuits with any mortgagee, costs of
     selling, syndicating, financing, mortgaging or hypothecating any of
     Landlord's interest in the Project, costs of any disputes between Landlord
     and its employees or with its Project management;

     (15) advertising and promotional expenditures, and costs of signs in or on
     the Project identifying the owner of the Project or other tenants' signs,
     except for Project directors or Project standard signage;

     (16) electric power costs or other utility costs for which any tenant
     directly contracts with the local public service company (but Landlord
     shall have the right to "gross-up" as if the floor was vacant);

     (17) tax penalties incurred as a result of Landlord's negligence, inability
     or unwillingness to make payments or file returns when due;

     (18) costs arising from Landlord's charitable or political contributions;

     (19) costs of installing, maintaining and operating any specialty service
     operated by Landlord, including without limitation, any luncheon club or
     athletic facility, or the repair thereof;

     (20) costs necessitated by or resulting from the gross negligence of
     Landlord, or any of its agents, employees or independent contractors;

     (21) any ground lease rental;

     (22) costs of capital acquisition of sculptures, paintings or other objects
     of art;

     (23) costs of earthquake insurance (except to the extent maintained in the
     Base Year);

     (24) notwithstanding any contrary provision of this Lease, including
     without limitation, any provision relating to capital expenditures, costs
     arising from the presence of "hazardous materials," "hazardous substances,"
     and/or "toxic substances," as defined in any federal, state, county or
     local law, including asbestos, in or about the Building and the Project;
     and

     (25) management fees in excess of that charged by comparable buildings in
     the vicinity of the Building."

Indemnity. Landlord shall indemnify, defend and hold harmless Tenant from any
---------
loss, costs, liability, damage or expense resulting from the negligence or
willful misconduct of landlord or its agents, servants, employees, contractors
or licensees in connection with Landlord's activities with respect to the
Project or from any default by Landlord under the terms of this Lease (except

                                     -10-

<PAGE>

for damage to the tenant improvements and Tenant's personal property, fixtures,
furniture and equipment in the Premises to the extent such damage is covered by
insurance Tenant is required to carry pursuant to Paragraph 8B.

Alterations. Notwithstanding the foregoing, Tenant shall have the right, without
-----------
consent of, but upon at least ten (10) business days' prior written notice (as
provided under Paragraph 12.B of the Lease) to, Landlord, to make non-structural
Alterations within the interior of the Premises (and which are not visible from
the outside of the Premises), which do not impair the value of the Building, and
which cost, in the aggregate, less than Twenty-Five Thousand Dollars
($25,000.00) in any twelve (12) month period during the Term of this Lease,
provided that such Alterations shall nevertheless be subject to all of the
remaining requirements of this Paragraph, including without limitation,
subparagraphs (a) through (c) and payment of the administration fee referred to
in Paragraph 12.A, other than the requirement of Landlord's prior consent. In
addition, all Alterations shall be performed by duly licensed contractors or
subcontractors reasonably acceptable to Landlord, proof of insurance shall be
submitted to Landlord as required under Paragraph 8.B, and Landlord reserves the
right to impose reasonable rules and regulations for contractors and
subcontractors. Tenant shall, if requested by Landlord, promptly furnish
Landlord with complete as-built plans and specifications for any Alterations
performed by Tenant to the Premises, at Tenant's sole cost and expense. Prior to
the commencement of the Alterations, Tenant shall be responsible for
coordinating access to the Premises with Landlord for the completion of the
Alterations. Any time Tenant proposes to make Alterations which require the
consent of Landlord pursuant to this Section, Tenant's notice regarding the
proposed Alterations shall be provided together with the plans and
specifications for the Alterations, and Landlord shall approve or disapprove of
the same within fifteen (15) business days after its receipt of all of the same;
provided, however, with respect to the initial Alterations and any initial
Alterations in any First Offer Space, the fifteen (15) business day period shall
be reduced to five (5) business days

Tenant Improvements. Landlord shall contribute a tenant improvement allowance
-------------------
equal to Two Hundred Ninety-Six Thousand and Ten Dollars ($296,010.00) to be
credited by Landlord toward all costs and expenses of Tenant's design and
construction of tenant improvements anywhere in the Premises provided that no
credit shall be given to Tenant one (1) year after the Expansion Premises
Commencement Date if Tenant does not invoice Landlord for the full amount of the
tenant improvement allowance by such date. The tenant improvement allowance, or
portions thereof, as applicable, shall be paid to Tenant within thirty (30) days
after Tenant's submission of applicable invoices therefor to Landlord. Tenant
may use up to $2.00 per usable square foot of the tenant improvement allowance
for telephone and data cabling and moving expenses. Landlord shall charge an
administration fee of three percent (3%) of the hard costs of the tenant
improvements, which amount may be deducted from the tenant improvement
allowance. Landlord shall, at its sole expense, demise the Expansion Premises
from the remaining space on the ground floor of the Building. This work shall
include the erection of walls between the two spaces, including drywall,
mudding, taping, sanding and painting with building standard paint and shall
include the separation of HVAC and electrical services within the two spaces.
"Delivery" of the Expansion Premises shall mean the date Landlord has delivered
possession of the Expansion Premises to Tenant with the demising of the wall, as
set forth in the immediately prior two (2) sentences, completed.

Assignment and Subletting.  Notwithstanding anything to the contrary contained
-------------------------
in this Lease, Paragraphs 21(A) and (B) are hereby deleted in their entirety and
replaced with the following:

        (1)     General. Tenant shall not assign or pledge this Lease or sublet
                -------
        the Premises or any part thereof, whether voluntarily or by operation of
        law, or permit the use or occupancy of the Premises or any part thereof
        by anyone other than Tenant, or suffer or permit any such assignment,
        pledge, subleasing or occupancy, without Landlord's prior written
        consent except as provided herein. If Tenant desires to assign this
        Lease or sublet any or all of the Premises, Tenant shall give Landlord
        written notice (the "Transfer Notice") at least twenty (20) days prior
        to the anticipated effective date of the proposed assignment or
        sublease, which shall contain all of the information reasonably
        requested by Landlord to address Landlord's decision criteria specified
        hereinafter. Within twenty (20) days following Landlord's receipt of the
        Transfer Notice, Landlord shall notify Tenant in writing that Landlord
        elects either to consent or reasonably deny consent to the

                                      11
<PAGE>

proposed assignment or sublease. Consent to any assignment or subletting shall
not constitute consent to any subsequent transaction to which this Paragraph
applies.

(2)  Conditions of Landlord's Consent. Without limiting the other instances in
     --------------------------------
which it may be reasonable for Landlord to withhold Landlord's consent to an
assignment or subletting, Landlord and Tenant acknowledge that it shall be
reasonable for Landlord to withhold Landlord's consent in the following
instances: if the proposed assignee does not agree to be bound by and assume the
obligations of Tenant under this Lease in a commercially reasonable form and
substance reasonably satisfactory to Landlord; the use of the Premises by such
proposed assignee or subtenant would not be a Permitted Use or would violate any
exclusivity or other arrangement which Landlord has with any other tenant or
occupant or any Regulation or would violate the Occupancy Density or Parking
Density set forth in Paragraph 4 above; the proposed assignee or subtenant is a
governmental agency with the power of condemnation or high foot traffic or
otherwise of a character which is not consistent (in Landlord's reasonable
opinion) with the professional image of the Building or the character of the
other tenants therein; the proposed assignee or subtenant does not have a good
reputation as a tenant of property or a good business reputation (as determined
by Landlord in its reasonable discretion); the proposed assignee or subtenant is
a person with whom Landlord is actively negotiating to lease space in the
Project (which for purposes of this Lease, shall mean a written lease proposal
or proposals setting forth the material business terms of a proposed lease have
been exchanged within the immediately preceding three (3) month period between
Landlord and the proposed transferee) or is a present tenant of the Project and
the Landlord has comparable space within the Project available for such tenant;
the assignment or subletting would entail any use of Hazardous Materials or
other noxious use or use which may disturb other tenants of the Project; or
Tenant is in default of any obligation of Tenant under this Lease. Failure by or
refusal of Landlord to consent to a proposed assignee or subtenant shall not
cause a termination of this Lease. At the option of Landlord, a surrender or
termination of this Lease shall operate as an assignment to Landlord of some or
all subleases or subtenancies. Landlord shall exercise this option by giving
notice of that assignment to such subtenants on or before the effective date of
the surrender and termination. In connection with each request for assignment or
subletting, Tenant shall pay to Landlord Landlord's actual out-of-pocket costs
for approving such requests, as well as all costs incurred by Landlord or any
mortgagee or ground lessor in approving each such request and effecting any such
transfer, including, without limitation, reasonable attorneys' fees (not to
exceed $1,500 in the aggregate).

(3)  Bonus Rent. Any Rent or other consideration realized by Tenant under any
     ----------
such sublease or assignment in excess of the Rent payable hereunder, after
deducting any Subleasing Costs (defined below) incurred by Tenant in connection
with said sublease or assignment (which Subleasing Costs shall be amortized over
the term of said sublease or assignment), shall be divided and paid, fifty
percent (50%) to Tenant, fifty percent (50%) to Landlord. "Subleasing Costs"
shall mean reasonable, out-of-pocket expenses for (i) any changes, alterations
and improvements to the Premises in connection with the transfer, (ii) any
brokerage commissions in connection with the transfer, (iii) any costs to
buy-out or takeover the previous lease of a transferee, (iv) reasonable legal
fees incurred in connection with the transfer including those fees and costs
reimbursed to Landlord  pursuant to this Lease, and (v) any other
"out-of-pocket" monetary concessions reasonably provided in connection with the
transfer including, but not limited to, tenant improvement or decorating
allowances (collectively, the "Subleasing Costs").

(4)  Affiliate.  Notwithstanding anything to the contrary contained in this
     ---------
Section, neither (i) an assignment or subletting of all or a portion of the
Premises (A) to an entity which is controlled by, controls or is under common
control with Tenant (or a valid assignee of this Lease), (B) to a purchaser of
all or substantially all of the assets of Tenant or of an entity which is
controlled by, controls or is under common control with Tenant (or a valid
assignee of this Lease), (C) to an entity which is controlled by, controls or is
under common control with Tenant (or a valid assignee of this Lease), or (D)
any transaction or series of venture funding or similar type transactions so
long as effective management control of Tenant is not altered as a result
thereof, (ii) said company or entity becoming a publicly traded on a regional or
national stock exchange, (iii) a transfer,

                                     -12-
<PAGE>

     by operation of law or otherwise, in connection with the merger,
     consolidation or other reorganization of Tenant or of an entity which is
     controlled by, controls or is under common control with Tenant (or a valid
     assignee of this Lease), nor (iv) the temporary use or occupancy of
     portions of the Premises (not to exceed 5,000 rentable square feet, in the
     aggregate) by a party or parties in connection with the transaction or
     business with Tenant or with an entity which is controlled by, controls or
     is under common control with Tenant (or with a valid assignee of this
     Lease), shall be subject to the Landlord's consent (collectively, such
     entities, purchasers, and parties shall be referred to herein collectively
     or individually as an "Affiliate"), provided such assignment or sublease is
     not a subterfuge by Tenant to avoid its obligations under this Lease.
     Tenant shall immediately notify Landlord of any such assignment, purchase,
     transfer, sublease, action, or use. For purposes of this Lease, "control"
     shall mean the possession, direct or indirect, of the power to direct or
     cause the direction of the management and policies of a person or entity,
     or majority ownership of any sort, whether through the ownership of voting
     securities, by contract or otherwise.

     (5)  Landlord's Option as to Subject Space. Notwithstanding anything to the
          -------------------------------------
     contrary contained in this Paragraph, in the event Tenant contemplates a
     transfer (hereinafter, a "Transfer") of all or a portion of the Premises
     (other than to an Affiliate), Tenant shall give Landlord notice (the
     "Intention to Transfer Notice") of such contemplated Transfer (whether or
     not the contemplated transferee or the terms of such contemplated Transfer
     have been determined). The Intention to Transfer Notice shall specify the
     portion of and amount of reasonable square feet of the Premises which
     Tenant intends to Transfer (the "Contemplated Transfer Space"), the
     contemplated date of commencement of the contemplated Transfer (the
     "Contemplated Effective Date"), the contemplated length of the term of such
     contemplated Transfer, and shall specify that such Intention to Transfer
     Notice is delivered to Landlord pursuant to this Paragraph 21 in order to
     allow Landlord to elect to recapture the Contemplated Transfer Space for
     the term set forth in the Intention to Transfer Notice. Thereafter (or in
     the event of any other Transfer or Transfers entered into by Tenant as a
     subterfuge in order to avoid the terms of this Paragraph), Landlord shall
     have the option, by giving written notice to Tenant within twenty (20) days
     after receipt of any Intention to Transfer Notice, to recapture the
     Contemplated Transfer Space as of the Contemplated Effective Date until the
     last day of the term of the Contemplated Transfer as forth in the Intention
     to Transfer Notice (the "Recapture Term"), and during the Recapture Term,
     Tenant shall be relieved of its obligations under the terms of this Lease.
     In the event of a recapture by Landlord, if this Lease shall be canceled
     with respect to less than the entire Premises, the Rent reserved herein
     shall be prorated on the basis of the number of rentable square feet
     retained by Tenant in proportion to the number of rentable square feet
     contained in the Premises, and this Lease as so amended shall continue
     thereafter in full force and effect, and upon request of either party, the
     parties shall execute written confirmation of the same. If Landlord
     declines, or fails to elect in a timely manner, to recapture such
     Contemplated Transfer Space under this Paragraph, then, subject to the
     terms of Paragraph 21, for a period of six (6) months (the "Six Month
     Period") commencing on the last date of such twenty (20) day period,
     Landlord shall not have any right to recapture the Contemplated Transfer
     Space with respect to any Transfer made during the Six Month Period,
     provided that any such Transfer is substantially on the terms set forth in
     the Intention to Transfer Notice, and provided further that any such
     Transfer shall be subject to the remaining terms of this Paragraph. If
     Landlord elects to recapture as provided herein for less than all of the
     Premises or less than the entire Lease Term, Landlord shall return such
     space to Tenant at the end of the Recapture Term in the same condition when
     received if Tenant will be using the Contemplated Transfer Space in its
     then existing or substantially similar condition. If such a Transfer is not
     so consummated within the Six Month Period (or if a Transfer is so
     consummated, then upon the expiration of the term of any Transfer of such
     Contemplated Transfer Space consummated within such Six Month Period),
     Tenant shall again be required to submit a new Intention to Transfer Notice
     to Landlord with respect to any contemplated Transfer, as provided in this
     Paragraph.

Early Entry into Premises.  Provided the Expansion Premises is vacant and in
-------------------------
Landlord's possession, Tenant may enter into the Expansion Premises prior to the
Expansion Premises Commencement Date immediately following the execution and
delivery of this Second

                                     -13-
<PAGE>

Amendment, solely for the purpose of installing furniture, trade fixtures,
telephones, computers, photocopy equipment, and other business equipment, for
construction and installation of tenant improvements therein and for the
occupancy of not more than 3,000 usable square feet thereof for business
purposes. Such early entry will not advance the Expansion Premises Commencement
Date so long as Tenant does not commence business operations from more than
3,000 useable square feet of the Expansion Premises. All of the provisions of
this Lease shall apply to Tenant during any early entry, including the indemnity
in Section 8C, but excluding the obligation to pay Rent unless and until the
earlier of (a) Tenant has commenced business operations from more than 3,000
useable square feet in the Expansion Premises, or (b) Expansion Premises
Commencement Date, whereupon Rent shall commence in accordance with Section 2A
above. Tenant shall not be obligated to pay any charges for electricity, HVAC,
water, elevators, parking or access to loading docks during such early entry
period. If Tenant is granted early entry, Landlord shall not be responsible for
any loss, including theft, damage or destruction to any work or material
installed or stored by Tenant at the premises or for any injury to Tenant or
Tenant's Parties. Landlord shall have the right to post appropriate notices of
non-responsibility and to require Tenant to provide Landlord with evidence that
Tenant has fulfilled its obligation to provide insurance pursuant to this Lease.

Remaining Provisions. Notwithstanding the foregoing, the terms and conditions
--------------------
contained in the lease which have not been addressed in this amendment will
remain in bill force and effect with respect to the Renewal Premises and
Expansion Premises

IN WITNESS WHEREOF, the parties hereto have signed and sealed this Second
Amendment to Lease as dated below.

LANDLORD:                                     TENANT:

SPIEKER PROPERTIES L.P.,                      MULTILINK TECHNOLOGY CORPORATION,
a California limited partnership              a California corporation

By:   Spieker Properties, Inc.,
      a Maryland corporation

Its:  General Partner

By:   /s/ Thomas A. Herta                     By:  /s/ Richard N. Nottenburg
      --------------------------                 ----------------------------
          Thomas A. Herta                              Richard N. Nottenburg
Its:      Vice President                      Its:     President and CEO

Date:  10/18/00                               Date:  10/16/00
      --------------------------                   --------------------------

                                     -14-

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