Document:

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                                                                    Exhibit 10.6

          [date]

          (FirstName) (LastName)
          (Address1)
          (City) (State) (PostalCode)

                            Subject:  Offer Letter

          Dear (FirstName):

          WaveSplitter is pleased to offer you a position as (Position). We
          anticipate that your efforts will contribute significantly to
          WaveSplitter's growth and success.

          Initially, you will be paid a base salary at the rate of (Salary) per
          year, to be paid in prorated biweekly installments for the time that
          you are employed by WaveSplitter.

          Subject to approval of the Board of Directors at their next meeting,
          you will be offered an option to purchase [number] shares of
          WaveSplitter Technologies, Inc., which will vest over four years at
          the rate of 25 percent at the end of the first year of your employment
          and 1/48th per month thereafter according to the policies and
          procedures of WaveSplitter Technologies.  The stock option price will
          be determined by the Board of Directors at the time of award.

          If you accept this position, you will report to (Reports_to).  Your
          start date will be [start date] (or sooner if possible).  The position
          of [position] is a full-time, exempt position.

          WaveSplitter provides 10 paid holidays, as each holiday occurs, during
          each calendar year.  Nine of these holidays are fixed company
          holidays, and one holiday is a personal choice with the prior approval
          of management.

          You are eligible for 15 days of paid time off during each full year
          that you are employed full-time by WaveSplitter. Paid time off may be
          used for vacation, personal or family illness or other personal
          matters. Paid time off accrues at the rate of approximately 1.25 days
          per month during full-time employment. Paid time off may be used, with
the prior written approval of your manager, after it has accrued. Paid time off
accrues at the rate of one additional day per year for each additional year that
you are employed full-time by WaveSplitter. The

                                       1
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maximum amount of paid time off that can be accumulated and carried over from
one year to the next is two times your annual accrual rate.

The standard work day at WaveSplitter is eight hours.   Calculations of pay for
holidays, vacation hours, and sick leave hours are based on base pay rate and a
maximum of eight hours per day.  Bonuses, overtime, and shift premiums are not
included in or calculated in pay for holidays, vacation hours, and sick leave
hours.

At this time, WaveSplitter officers several choices of major group major
medical, dental and vision insurance for eligible employees. For some of those
choices, the company currently pays one hundred percent of the premiums. For
others, the employee is required to contribute to the cost through payroll
deductions. WaveSplitter works with the providers of group major medical, dental
and vision insurance in order that coverage may be available to eligible
employees effective on the first day of the month following the month in which
employment commences.

A summary of the benefits that are currently available to employees of
WaveSplitter is attached.  Benefits, which are offered and/or made available to
employees of WaveSplitter, may be modified or changed by WaveSplitter at anytime
without notice.  WaveSplitter does not necessarily participate in the cost of
all benefits.  WaveSplitter policies and practices regarding employee benefits
may change at anytime without notice and at the discretion of management.

This letter constitutes an offer of at-will employment.  Employment at-will may
be terminated with or without cause and with or without notice at any time by
the employee or the Company.

Any agreement regarding employment, wages, benefits, or other conditions of
employment with WaveSplitter must be entered into in writing and signed by the
President and CEO of the Company."  Unwritten representations or commitments
made to you by officers, agents, or employees of WaveSplitter are not binding on
the company.

In consideration of employment by WaveSplitter, you will be asked to sign a
Nondisclosure and Invention Agreement. A copy is enclosed.

This offer is available for acceptance for a period of five (5) days from the
above date.

WaveSplitter is committed to managing our business in an exemplary manner.
WaveSplitter is an equal opportunity employer.  We believe that WaveSplitter is
a stimulating and rewarding environment to work in, and we look forward to your
joining us.

Should you have any questions or wish to discuss any concerns, please give me a
call.

Sincerely yours,

                                       2
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(Reports_to)
(Reports_to_title)
WaveSplitter Technologies, Inc.

Offer
accepted: _________________________________   Date: ______________
                (Signature)

                                       3
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                    Exhibit A to Offer Letter dated [date]

1.   In the event that, in contemplation of, or at any time after a "Change of
Control", your employment with the Company (or its successor) is involuntarily
terminated other than for "Cause" (as such terms are defined below), and:

     (a)  if such termination occurs prior to the one year anniversary of the
Vesting Commencement Date, then one-half (1/2) of the then unvested portion of
the Option will immediately vest; or

     (b)  if such termination occurs on or after the one year anniversary of the
Vesting Commencement Date then all of the then unvested portion of the Option
will immediately vest.

2.   For purposes of the foregoing:

     (a)  Termination for "Cause" means (A) the failure by you substantially to
perform your material duties after a written demand for substantial performance
is delivered to you that specifically identifies the manner in which you have
not substantially performed your duties, (B) the failure (in a material respect)
by you to follow reasonable policies or directives established by the Company
after written notice to you that you are not following such policies or
directives, (C) bad faith conduct that is materially detrimental to the Company,
or (D) the conviction of you of any crime involving the property or  the
business of the Company, or any felony.

     (b)  A "Change of Control" shall be deemed to have occurred if (i) the
Company sells or otherwise disposes of all or substantially all of its assets;
(ii) there is a merger or consolidation of the Company with any other
corporation or corporations, if the shareholders of the Company, as a group, do
not hold, immediately after such event, more than 50% of the voting power of the
surviving or successor corporation; or (iii) a person or entity (exclusive of
persons who are now officers and directors of the Company), including any
"person" as such term is used in Section 13(d)(3) of the Securities Exchange Act
of 1934, as amended (the "Exchange Act"), becomes the "beneficial owner" (as
defined in the Exchange Act) of capital stock of the Company representing 40% or
more of the combined voting power of the voting securities of the Company.<PAGE>

                                                                    EXHIBIT 10.7

        STANDARD INDUSTRIAL/COMMERCIAL MULTI-TENANT LEASE MODIFIED NET

1.   Basic Provisions ("Basic Provision").

     1.1     Parties:  This Lease ("Lease"), dated for reference purposes only,

June 27, 2000, is made by and between Fremont Ventures LLC ("Landlord") and
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Wavesplitter Technologies, Inc. ("Tenant"), (collectively the "Parties," or
individually a "Party").

     1.2(a)  Premises:  That certain Building, including all improvements
therein or to be provided by Landlord under the terms of this Lease containing
54,664 square feet of space, and commonly known by the street address of 46417-
46437 Landing Parkway, located in the City of Fremont, County of Alameda, State
of California, with zip code 94537 and designated as "Building F" on Exhibit A
   ----------                -----                                           -
attached hereto ("Premises").  The "Building" is that certain building
containing the Premises and generally described as: an R&D building located in
                                                    --------------------------
the Fremont Technology Park-Phase II and commonly known as Building F. In
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addition to Tenant's rights to use and occupy the Premises as hereinafter
specified, Tenant shall have non-exclusive rights to the Common Areas (as
defined in Paragraph 2.7 below) as hereinafter specified, but shall not have any
rights to the roof, exterior walls or utility raceways of the Building or to any
other buildings in the Industrial Center except as set forth in Paragraph 34,
below.  The Premises, the Building, the Common Areas, the land upon which they
are located, along with all other buildings and improvements thereon, are herein
collectively referred to as the "Industrial Center", all as shown on Exhibit A.
(Also see Paragraph 2.)

     1.2(b)  Parking: 215 unreserved vehicle parking spaces ("Unreserved Parking
Spaces"); and no reserved vehicle parking spaces ("Reserved Parking Spaces").
              ---
(Also, see Paragraph 2.6)

     1.3     Term: The ten (10) year period commencing one hundred twenty (120)
days after the Early Possession Date (the "Commencement Date" ) and ending on
the date immediately preceding the tenth (10th) anniversary of the Commencement
Date (the "Expiration Date"); provided, however that if the Commencement Date is
a date other than the first (1st) day of a calendar month, the expiration shall
be the last day of the month which is one hundred twenty (120) months after the
month in which the Commencement Date occurs (the "Original Term") unless
extended or earlier terminated pursuant to the terms of this Lease.(Also
Paragraph 3.)

     1.4     Early Possession: upon Landlord's turnover of the Premises to
Tenant with Landlord's Work (as defined in Paragraph 49) substantially completed
("Early Possession Date"). The target Early Possession Date is November 1, 2000.
(Also Paragraphs 3.2 and 3.3.)

     1.5     Base rent: $1.85 per month per square foot ("Base Rent"), payable
on the first day of each month commencing on the Commencement Date (a total of
$101, 128 per month based on 54,664 square feet of space, but subject to
adjustment as provided in Paragraph 2.1 to reflect the actual square feet of
space). (Also see Paragraph 4.) Base Rent to be adjusted upwards annually by 4%
beginning with the first month of the third Lease Year. The term "Lease Year"
shall mean each consecutive twelve (12) month period during the Original Term,
with the first Lease Year commencing on the Commencement Date; provided,
however, (a) if the Commencement Date falls on a day other than the first day of
a calendar month, the first Lease Year shall end on the last day of the month
which is twelve (12) months after the month in which the Commencement Date
occurs and the second and each succeeding Lease Year shall commence on the first
day of the next calendar month, and (b) the last Lease Year shall end on the
Expiration Date.

     1.6(a)  Initial Base Rent Payment:  Within thirty (30) days after the Early
Possession Date, Tenant shall pay Landlord the Base Rent for the month following
the Commencement Date..
                     -

     1.6(b)  Tenant's Share of Common Area Operating Expenses: 35.16 %
("Tenant's Share") as determined by prorata square footage of the Premises as
compared to the total square footage of all of the buildings in Industrial
Center.

     1.7     Security Deposit: $1,200,000 ("Security Deposit").  (Also see
Paragraph 5)
     1.8     Permitted Use: office, lab, manufacturing, storage ("Permitted
Use") (Also see Paragraph 5.)

     1.9     Insuring Party. Landlord is the "Insuring Party." (Also see
Paragraph 8)

     1.10(a) Real Estate Brokers.  The following real estate broker(s)
(collectively, the "Brokers") and brokerage relationships exist in this
transaction and are consented to by the Parties (check applicable boxes):

                                                                 Initials___/___

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[ ]  ***** represents Landlord exclusively ("Landlord's Broker");
     -----
[ ]  ***** represents Tenant exclusively ("Tenant's Broker"); or
     -----
[X]  Grubb & Ellis represents both Landlord and Tenant ("Dual Agency"). (/also
     see Par. 15.)

     1.10(b) Payment to Brokers. Upon the execution of this Lease by both
Parties, Landlord shall pay to said Broker(s)according to separate written
agreement between Landlord and said Broker(s).

     1.11    Guarantor. The obligations of the Tenant under this Lease are to be
guaranteed by **none*** ("Guarantor"). (Also see Paragraph 37.) There is no
              ---------
Guarantor.

     1.12    Addenda and Exhibits. Attached hereto is an Addendum or Addenda
consisting of Exhibit A, all of which constitute a part of this Lease.
                      -

                                                                 Initials___/___

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2.   Premises, Parking and Common Areas.

     2.1  Letting. Landlord hereby leases to Tenant, and Tenant hereby leases
from Landlord, the Premises, for the term, at the rental, and upon all of the
terms, covenants and conditions set forth in this Lease. The leaseable area is
measured to the outside edge of the outside walls and drip lines to the
centerline of any demising walls, including a pro rata share of the electrical
room and other common spaces. At any time within ten (10) business days after
the Early Possession Date, Tenant may engage an independent architect or
surveyor to measure the square footage of the Premises. If the actual square
footage of the Premises varies from the square footage set forth in Paragraph
1.2 (a), Landlord and Tenant shall execute an amendment to this Lease setting
forth the appropriate adjustments to the square footage of the Premises, the
Base Rent and the Tenant's Share to reflect the actual square footage of the
Premises. If the actual square footage of the Premises is less than ninety
percent (90%) or more than one hundred ten percent (110%) of the square footage
set forth in Paragraph 1.2 (a) Tenant shall have the right to terminate the
Lease by delivering written notice of termination to Landlord within ten (10)
business days after the Early Possession Date.

     2.2  Condition. Landlord shall deliver the Premises to Tenant clean and
free of debris on the Early Possession Date and warrants to Tenant that the
existing floors, plumbing, electrical systems and loading doors, if any, in the
Premises, other than those constructed by Tenant, shall be in good operating
condition on the Early Possession Date. If a non-compliance with said warranty
exists as of the Early Possession Date, Landlord shall, except as otherwise
provided in this Lease, promptly after receipt of written notice from Tenant
setting forth with specificity the nature and extent of such non-compliance,
rectify same at Landlord's expense. If Tenant does not give Landlord written
notice of a non-compliance with this warranty within thirty (30) days after the
Commencement Date, correction of that non-compliance shall be the obligation of
Tenant at Tenant's sole cost and expense.

     2.3  Warranties. Tenant acknowledges that neither landlord nor any of its
agents made any representations or warranties respecting the Industrial Center,
the Building, or the Premises, upon which Tenant relied in entering into this
Lease, which are not expressly set forth in this Lease. Tenant further
acknowledges that neither Landlord nor any of its agents made any
representations as to (i) whether the Premises may be used for Tenant's intended
use under existing law or; (ii) the suitability of the Premises for the conduct
of Tenant's business or; (iii) the exact square footage of the Premises; that
Tenant relied solely upon its own investigations respecting said Premises
(including but not limited to the electrical and fire sprinkler systems,
security, environmental aspects, seismic and earthquake requirements, and
compliance with the American with Disabilities Act and applicable zoning,
municipal, county, state and federal laws, ordinances and regulations and any
covenants or restrictions of record (collectively, "Applicable Laws") and that
upon its execution of this Lease, accepts the leaseable area as specified
herein. Tenant expressly waives any and all claims for damage by reason of any
statement, representation, warranty, promise or other agreement of Landlord or
Landlord's agent(s), if any, not contained in this Lease or in any addenda
hereto.

     2.4  Tenant as Prior Owner/Occupant. The warranties made by Landlord in
this Paragraph 2.2 shall be of no force or effect if immediately prior to the
date set forth in Paragraph 1.1 Tenant was the owner or occupant of the
Premises. In such event, Tenant shall, at Tenant's sole cost and expense,
correct any non-compliance of the Premises with said warranties. Landlord
acknowledges that Tenant was not the owner or occupant of the Premises prior to
the date set forth in Paragraph 1.1.

     2.5  Vehicle Parking. Tenant shall be entitled to use the number of
Unreserved Parking Spaces and Reserved Parking Spaces specified in Paragraph
1.2(b) on those portions of the Common Areas designated from time to time by
Landlord for parking. Tenant shall not use more parking spaces than said number.
Said parking spaces shall be used for parking by vehicles no larger than full-
size passenger automobiles or pick-up trucks, herein called "Permitted Size
Vehicles." Vehicles other than Permitted Size Vehicles shall be parked and
loaded or unloaded as directed by Landlord in the Rules and Regulations (as
defined in Paragraph 40) issued by Landlord. (Also see Paragraph 2.9.)

          (a)  Tenant shall not permit or allow any vehicles that belong to or
are controlled by Tenant or Tenant's employees, suppliers, shippers, customers,
contractors or invitees to be loaded, unloaded, or parked in areas other than
those designated by Landlord for such activities.

          (b)  If Tenant permits or allows any of the prohibited activities
described in this Paragraph 2.6, then Landlord shall have the right, without
notice, in addition to such other rights and remedies that it may have, to
remove or tow away the vehicle involved and charge the cost to Tenant, which
cost shall be immediately payable upon demand by Landlord.

          (c)  Landlord shall at the Commencement Date of this Lease, provide
the parking facilities required by Applicable Law and this Paragraph 2.5.

     2.6  Common Areas - Definition.  The term "Common Areas" is defined as all
areas and facilities outside the Premises and within the exterior boundary line
of the Industrial Center, but excluding all of the buildings, that are provided
and designated by the Landlord from time to time for the general non-exclusive
use of Landlord, Tenant and other tenants of the Industrial Center and their
respective employees, suppliers, shippers, customers, contractors and invitees,
including parking areas, loading and unloading areas, trash areas, roadways,
sidewalks, walkways, parkways, driveways and landscaped areas, all as shown on
Exhibit A.

     2.7  Common Areas - Tenant's Rights.  Landlord hereby grants to Tenant, for
the benefit of Tenant and its employees, suppliers, shippers, contractors,
customers and invitees, during the term of this Lease, the non-exclusive right
to use, in common with others entitled to such use, the Common Areas as they
exist from time to time,

                                                                 Initials___/___

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subject to any rights, powers, and privileges reserved by Landlord under the
terms hereof or under the terms of any rules and regulations or restrictions
governing the use of the Industrial Center. Under no circumstances shall the
right herein granted to use the Common Areas be deemed to include the right to
store any property, temporarily or permanently, in the Common Areas. Any such
storage shall be permitted only by the prior written consent of Landlord or
Landlord's designated agent, which consent may be revoked at any time. In the
event that any unauthorized storage shall occur then Landlord shall have the
right, without notice, in addition to such other rights and remedies that it may
have, to remove the property and charge the reasonable cost to Tenant, which
cost shall be immediately payable upon demand by Landlord.

     2.8   Common Areas - Rules and Regulations. Landlord or such other
person(s) as Landlord may appoint shall have the exclusive control and
management of the Common Areas and shall have the right, from time to time, to
establish, modify, amend and enforce reasonable Rules and Regulations with
respect thereto in accordance with Paragraph 40. Tenant agrees to abide by and
conform to all such Rules and Regulations and to cause its employees, suppliers,
shippers, customers, contractors and invitees to so abide and conform. Landlord
shall not be responsible to Tenant for the non-compliance with said rules and
regulations by other tenants of the Industrial Center.

     2.09  Common Areas - Changes.  Landlord shall have the right, in Landlord's
sole discretion, from time to time:

           (a)  To make changes to the Common Areas, including, without
limitation, changes in the location, size, shape and number of driveways,
entrances, parking spaces, parking areas, loading and unloading areas, ingress,
egress, direction of traffic, landscaped areas, walkways and utility raceways;
           (b)  To close temporarily any of the Common Areas for maintenance
purposes so long as reasonable access to the Premises remains available;
           (c)  To add additional buildings and improvements to the Common
Areas;
           (d)  To use the Common Areas while engaged in making additional
improvements, repairs or alterations to the Industrial Center, or any portion
thereof; and
           (e)  To do and perform such other acts and make such other changes
in, to or with respect to the Common Areas and Industrial Center as Landlord
may, in the exercise of sound business judgment, deem to be appropriate.

3.   Term.

     3.1   Term. The Commencement Date, Expiration Date and Original Term of
this Lease are as specified in Paragraph 1.3.

     3.2   Early Possession. If an Early Possession Date is specified in
Paragraph 1.4 and if Tenant totally or partially occupies the Premises after the
Early Possession Date but prior to the Commencement Date, the obligation to pay
Rent shall be abated for the period of such early occupancy. All other terms of
this Lease, however, (including carrying the proper insurance required by
Paragraph 8) shall be in effect during such period. Any such early possession
shall not affect nor advance the Expiration Date of the Original Term.

     3.3   Delay in Possession. If for any reason Landlord fails to deliver
possession of the Premises to Tenant by the target Early Possession Date
specified in Paragraph 1.4, Landlord shall not be subject to any liability
therefor, nor shall such failure affect the validity of this Lease, or the
obligations of Tenant hereunder, or extend the term hereof, but in such case,
Tenant shall not, except as otherwise provided herein, be obligated to pay rent
or perform any other obligation of Tenant under the terms of this Lease until
Landlord delivers possession of the Premises to Tenant. If possession of the
Premises is not delivered to Tenant within one hundred and twenty (120) days
after the target Early Possession Date specified in Paragraph 1.4, Tenant may,
at its option, by notice in writing to Landlord, cancel this Lease, in which
event the parties shall be discharged from all obligations hereunder and the
Security Deposit and any Base Rent paid by Tenant shall be returned to Tenant by
Landlord not later than ten (10) days after receipt of Tenant's notice of
cancellation.; provided further, however, that if such written notice of Tenant
is not received by Landlord prior to the Early Possession Date, Tenant's right
to cancel this Lease hereunder shall terminate and be of no further force or
effect.

4.   Rent

     4.1  Base Rent. Tenant shall pay Base Rent and other rent or charges, as
the same may be adjusted from time to time, to Landlord in lawful money of the
United States, without offset or deduction, on or before the 1st day of each
month. Base Rent and all other rent and charges for any period during the term
hereof which is for less than one full month shall be prorated based upon the
actual number of days of the month involved. Payment of Base Rent and other
charges shall be made to Landlord at its address stated herein or to such other
persons or at such other addresses as Landlord may from time to time designate
in writing to Tenant.

     4.2  Common Area Operating Expenses.  Tenant shall pay to Landlord during
the term hereof, in addition to the Base Rent, Tenant's Share (as specified in
Paragraph 1.6(b)) of all Common Area Operating Expenses, as hereinafter defined,
during each calendar year of the term of this Lease, in accordance with the
following provisions:

          (a)  "Common Area Operating Expenses" are defined, for purposes of
this Lease, as all costs incurred by Landlord relating to the ownership and
operation of the Industrial Center, including, but not limited to, the
following:

               (i)  The operation, repair and maintenance, in neat, clean, good
order and condition,

                                                                 Initials___/___

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of the following:

                         (aa)  The Common Areas, including parking areas,
loading and unloading areas, trash areas, roadways, sidewalks, walkways,
parkways, driveways, landscaped areas, striping, bumpers, irrigation systems,
Common Area lighting facilities, fences and gates, elevators and roof.

                         (bb)  Exterior signs and any tenant directories.

                         (cc)  Fire detection and sprinkler systems.

               (ii)      The cost of water, gas, electricity and telephone to
service the Common Areas.

               (iii)     Trash disposal, property management and security
services and the costs of any environmental inspections.

               (iv)      Reserves set aside for maintenance and repair of Common
Areas.

               (v)       Real Property Taxes (as defined in Paragraph 10.2) to
be paid by Landlord for the Building and the Common Areas under Paragraph 10
hereof.

               (vi)      The cost of the premiums for the insurance policies
maintained by Landlord under Paragraph 8 hereof.

               (vii)     Any deductible portion of an insured loss concerning
the Building or the Common Areas.

               (viii)    Any other services to be provided by Landlord that are
stated elsewhere in this Lease to be a Common Area Operating Expense.

          (b)  Any Common Area Operating Expenses and Real Property Taxes that
are specifically attributable to the Building or to any other building in the
Industrial Center or to the operation, repair and maintenance thereof, shall be
allocated entirely to the Building or to such other building. However, any
Common Area Operating Expenses and Real Property Taxes that are not specifically
attributable to the Building or to any other building or to the operation,
repair and maintenance thereof, shall be equitably allocated by Landlord among
the Building and the other buildings in the Industrial Center.

          (c)  The inclusion of the improvements, facilities and services set
forth in subparagraph 4.2(a) shall not be deemed to impose an obligation upon
Landlord to either have said improvements or facilities or to provide those
services unless the Industrial Center already has the same, Landlord already
provides the services, or Landlord has agreed elsewhere in this Lease to provide
the same or some of them.

          (d)  Tenant's Share of Common Area Operating Expenses shall be payable
by Tenant within thirty(30) days after a reasonably detailed statement of actual
expenses is presented to Tenant by Landlord. At Landlord's option, however, an
amount may be estimated by Landlord from time to time of Tenant's Share of
annual Common Area Operating Expenses and the same shall be payable monthly or
quarterly, as Landlord shall designate, during each Lease Year, on the same day
as the Base Rent is due hereunder. Landlord shall deliver to Tenant within sixty
(60) days after the expiration of each calendar year a reasonably detailed
statement showing Tenant's Share of the actual Common Area Operating Expenses
incurred during the preceding year. If Tenant's payments under this Paragraph
4.2(d) during said preceding year exceed Tenant's Share as indicated on said
statement, Landlord shall be credited the amount of such over-payment against
Tenant's Share of Common Area Operating Expenses next becoming due. If Tenant's
payments under this Paragraph 4.2(d) during said preceding year were less than
Tenant's Share as indicated on said statement, Tenant shall pay to Landlord the
amount of the deficiency within ten (10) days after delivery by Landlord to
Tenant of said statement.

          (e)  Common Area Operating Expenses shall not include the items listed
in Exhibit B.

5.   Security Deposit. The Security Deposit specified in Paragraph 1.7
represents security for Tenant's faithful performance of Tenant's obligations
under this Lease and shall be paid by Tenant as follows: (a) Tenant has
deposited with Landlord when the lease is signed $200,000 in cash, and (b) not
later than September 30, 2000 (provided that this Lease has been executed by
both parties prior to such date) Tenant will deposit with Landlord $1,000,000 in
the form of an irrevocable letter of credit from an institution reasonably
acceptable to Landlord naming Landlord as beneficiary and guaranteeing the full
and faithful performance of all of the terms and conditions of this Lease
including any reasonable re-tenanting costs if need be. Provided Tenant is not
in default of the terms and conditions of the Lease, Tenant may reduce the
amount of the letter of credit in half upon Tenant becoming a public company and
completing an Initial Public Offering with gross proceeds of greater than $50
million.  Landlord shall execute such documents and provide such other
assistance and cooperation as may be reasonably requested by Tenant to enable
the reduction of such letter of credit as provided herein.  If Tenant fails to
pay the Base Rent or other rent or charges due hereunder, or otherwise Defaults
under this Lease (as defined in Paragraph 13.1), Landlord may use, apply or
retain all or any portion of said Security Deposit as may be necessary to remedy
such failure or Default by Tenant and Tenant shall within ten (10) days after
written request therefore deposit monies with Landlord or replenish the letter
of credit (if drawn upon by Landlord) in amounts sufficient to restore said
Security Deposit to the full amount required by this Lease..  Landlord shall not
be required to keep all or any part of the Security Deposit separate from its
general accounts.  Landlord shall, at the expiration or earlier termination of
the term hereof and after Tenant has vacated the Premises, return to Tenant (or,
at Landlord's option, to the last assignee, if any, of Tenant's interest

                                                                 Initials___/___

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<PAGE>

herein), that portion of the Security Deposit not used or applied by Landlord.
The portion of the Security Deposit to be returned to Tenant as provided herein
shall be returned by Landlord not later than thirty (30) days after Tenant has
vacated the Premises following termination or expiration of the Lease. Unless
otherwise expressly agreed in writing by Landlord, no part of the Security
Deposit shall be considered to be held in trust, to bear interest or other
increment for its use, or to be prepayment for any monies to be paid by Tenant
under this Lease.

6.   Use.

     6.1  Permitted Use.

          (a)  Tenant shall use and occupy the Premises only for the Permitted
Use set forth in Paragraph 1.8, or any other legal use which is reasonably
comparable thereto, and for no other purpose. Tenant shall not use or permit the
use of the Premises in a manner that is unlawful, creates waste or a nuisance,
or that disturbs owners and/or occupants of, or causes damage to the Premises or
neighboring premises or properties. Tenant shall have access to the Premises and
the Common Areas seven days a week, 24 hours per day, subject to reasonable
security policies in effect for all tenants of the Industrial Center with
respect to access to the Common Areas.

          (b)  Landlord hereby agrees to not unreasonably withhold or delay its
consent to any written request by Tenant, Tenant's assignees or subtenants, and
by prospective assignees and subtenants of Tenant, its assignees and subtenants,
for a modification of said Permitted Use, so long as the same will not impair
the structural integrity of the improvements on the Premises or in the Building
or the mechanical or electrical systems therein, does not conflict with uses by
other tenants in the Industrial Center, is not significantly more burdensome to
the Premises or the Building and the improvements thereon, and is otherwise
permissible pursuant to this Paragraph 6.  If Landlord elects to withhold such
consent, Landlord shall within five (5) business days after such request give a
written notification of same, which notice shall include an explanation of
Landlord's reasonable objections to the change in use.

     6.2  Hazardous Substances.

          (a)  Reportable Uses Require Consent. The term "Hazardous Substance"
as used in this Lease shall mean any product, substance, chemical, material or
waste whose presence, nature, quantity and/or intensity of existence, use,
manufacture, disposal, transportation, spill, release or effect, either by
itself or in combination with other materials expected to be on the Premises, is
either: (i) potentially injurious to the public health, safety or welfare, the
environment, or the Premises; (ii) regulated or monitored by any governmental
authority; or (iii) a basis for potential liability of Landlord to any
governmental agency or third party under any applicable statute or common law
theory. Hazardous Substance shall include, but not be limited to, hydrocarbons,
petroleum, gasoline, crude oil or any products or by-products thereof. Tenant
shall not engage in any activity in or about the Premises which constitutes a
Reportable Use (as hereinafter defined) of Hazardous Substances without the
express prior written consent of Landlord and compliance in a timely manner (at
Tenant's sole cost and expense) with all Applicable Requirements (as defined in
Paragraph 6.3). Landlord consents to the presence on the Premises of optical
fiber and process gases (nitrogen, oxygen and hydrogen), and their use by Tenant
in the development and production of Tenant's products. "Reportable Use" shall
mean (i) the installation or use of any above or below ground storage tank, (ii)
the generation, possession, storage, use, transportation, or disposal of a
Hazardous Substance that requires a permit from, or with respect to which a
report, notice, registration or business plan is required to be filed with, any
governmental authority, and (iii) the presence in, on or about the Premises of a
Hazardous Substance with respect to which any Applicable Laws require that a
notice be given to persons entering or occupying the Premises or neighboring
properties. Notwithstanding the foregoing, Tenant may, without Landlord's prior
consent, but upon notice to Landlord and in compliance with all Applicable
Requirements, use any ordinary and customary materials reasonably required to be
used by Tenant in the normal course of the Permitted Use, so long as such use is
not a Reportable Use and does not expose the Premises or neighboring properties
to any meaningful risk of contamination or damage or expose Landlord to any
liability therefor. In addition, Landlord may (but without any obligation to do
so) condition its consent to any Reportable Use of any Hazardous Substance by
Tenant upon Tenant's giving Landlord such additional assurances as Landlord, in
its reasonable discretion, deems necessary to protect itself, the public, the
Premises and the environment against damage, contamination or injury and/or
liability therefor, including but not limited to the installation (and, at
Landlord's option, removal on or before Lease expiration or earlier termination)
of reasonably necessary protective modifications to the Premises (such as
concrete encasements) and/or the deposit of an additional Security Deposit under
Paragraph 5 hereof.

          (b) Duty to Inform Landlord. If Tenant knows, or has reasonable cause
to believe, that Tenant has caused or permitted a Hazardous Substance to be
located in, on, under or about the Premises or the Building, other than as
previously consented to by Landlord, Tenant shall immediately give Landlord
written notice thereof, together with a copy of any statement, report, notice,
registration, application, permit, business plan, license, claim, action, or
proceeding given to, or received from, any governmental authority or private
party concerning the presence, spill, release, discharge of, or exposure to,
such Hazardous Substance including but not limited to all such documents as may
be involved in any Reportable Use involving the Premises. Tenant shall not cause
or permit any Hazardous Substance to be spilled or released in, on, under or
about the Premises (including, without limitation, through the prompting or
sanitary sewer system).

          (c) Indemnification. Tenant shall indemnify, protect, defend and hold
Landlord, its agents, employees, lenders and ground lessor, if any, and the
Premises, harmless from and against any and all damages, liabilities, judgments,
costs, claims, liens, expenses, penalties, loss of permits and attorneys' and
consultants' fees arising out of or involving any Hazardous Substance brought
onto the Premises by or for Tenant or by anyone under Tenant's control. Tenant's
obligations under this paragraph 6.2(c) shall include, but not be limited to,
the effects of any contamination or injury to person, property or the
environment caused by Tenant, and the reasonable cost of

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investigation (including consultants' and attorneys' fees and testing), removal,
remediation, restoration and/or abatement thereof, or of any contamination
therein involved, and shall survive the expiration or earlier termination of
this Lease. No termination, cancellation or release agreement entered into by
Landlord and Tenant shall release Tenant from its obligations under this Lease
with respect to Hazardous Substances, unless specifically so agreed by Landlord
in writing at the time of such agreement.

     6.3  Tenant's Compliance with Requirements. Tenant shall, at Tenant's sole
cost and expense, fully, diligently and in a timely manner, comply with all
"Applicable Requirements," which term is used in this Lease to mean all laws,
rules, regulations, ordinances, directives, covenants, easements and
restrictions of record, permits, the requirements of any applicable fire
insurance underwriter or rating bureau, and the reasonable recommendations of
Landlord's engineers and/or consultants, relating in any manner to the Premises
(including but not limited to matters pertaining to (i) industrial hygiene, (ii)
environmental conditions on, in, under or about the Premises, including soil and
ground water conditions, and (iii) the use, generation, manufacture, production,
installation, maintenance, removal, transportation, storage, spill, or release
of any Hazardous Substance), now in effect or which may hereafter come into
effect. Tenant shall, within fifteen (15) days after receipt of Landlord's
written request, provide Landlord with copies of all documents and information,
including but not limited to permits, registrations, manifests, applications,
reports and certificates, evidencing Tenant's compliance with any applicable
Requirements specified by Landlord, and shall immediately upon receipt, notify
Landlord in writing (with copies of any documents involved) of any threatened or
actual claim, notice, citation, warning, complaint or report pertaining to or
involving failure by Tenant or the Premises to comply with any Applicable
Requirements.

     6.4  Inspection; Compliance with Law. Landlord, Landlord's agents,
employees, contractors and designated representatives, and the holders of any
mortgages, deeds of trust or ground leases on the Premises ("Lenders") shall
have the right to enter the Premises at any time in the case of an emergency,
and otherwise at reasonable times, for the purpose of inspecting the condition
of the Premises and for verifying compliance by Tenant with this Lease and all
Applicable Requirements (as defined in Paragraph 6.3), and Landlord shall be
entitled to employ experts and/or consultants in connection therewith to advise
Landlord with respect to Tenant's activities, including but not limited to
Tenant's installation, operation, use, monitoring, maintenance, or removal of
any Hazardous Substance on or from the Premises. The costs and expenses of any
such inspections shall be paid by the party requesting same, unless a Default or
Breach of this Lease by Tenant or a violation of Applicable Requirements or a
contamination, caused or materially contributed to by Tenant, is found to exist
or to be imminent, or unless the inspection is requested or ordered by a
governmental authority as the result of any such existing or imminent violation
or contamination. In such case, Tenant shall upon request reimburse Landlord or
Landlord's Lender, as the case may be, for the costs and expenses of such
inspections.

7.   Maintenance, Repairs, Utility Installations, Trade Fixtures and
Alterations.

     7.1  Tenant's Obligations.

          (a)  Subject to the provision of Paragraphs 2.2 (Condition), 7.2
(Landlord's Obligations), 9 (Damage or Destruction), and 14 (Condemnation),
Tenant shall, at Tenant's sole cost and expense and at all times, keep the
Premises and every part thereof in good order, condition and repair (whether or
not such portion of the Premises requiring repair, or the means of repairing the
same, are reasonably or readily accessible to Tenant, and whether or not the
need for such repairs occurs as a result of Tenant's use, any prior use, the
elements or the age of such portion of the Premises), including, without
limiting the generality of the foregoing, all equipment or facilities
specifically serving the Premises, such as plumbing, heating, air conditioning,
ventilating, electrical, lighting facilities, boilers, fired or unfired pressure
vessels, fire hose connections if within the Premises, fixtures, interior walls,
interior surfaces of exterior walls, ceilings, floors, windows, doors, plate
glass, and skylights, but excluding any items which are the responsibility of
Landlord pursuant to Paragraph 7.2 below. Tenant, in keeping the Premises in
good order, condition and repair, shall exercise and perform good maintenance
practices. Tenant's obligations shall include restorations, replacements or
renewals when necessary to keep the Premises and all improvements thereon or a
part thereof in good order, condition and state of repair.

          (b)  Tenant shall, at Tenant's sole cost and expense, procure and
maintain a contract, with copies to Landlord, in customary form and substance
for and with a contractor specializing and experienced in the inspection,
maintenance and service of the heating, air conditioning and ventilation system
for the Premises.

          (c)  If Tenant fails to perform Tenant's obligations under this
Paragraph 7.1, Landlord may enter upon the Premises after ten (10) days' prior
written notice to Tenant (except in the case of an emergency, in which case no
notice shall be required), perform such obligations on Tenant's behalf, and put
the Premises in good order, condition and repair, in accordance with Paragraph
13.2 below.

     7.2  Landlord's Obligations.  Subject to the provisions of Paragraphs 2.2
(Condition), 4.2 (Common Area Operating Expenses), 6 (Use), 7.1 (Tenant's
Obligations), 9 (Damage or Destruction) and 14 (Condemnation), Landlord, subject
to reimbursement pursuant to Paragraph 4.2, shall keep in good order, condition
and repair the foundations, exterior walls, structural condition of interior
bearing walls, exterior roof, fire sprinkler and/or standpipe and hose (if
located in the Common Areas) or other automatic fire extinguishing system
including fire alarm and/or smoke detection systems and equipment, fire
hydrants, parking lots, walkways, parkways, driveways, landscaping, fences,
signs and utility systems serving the Common Areas and all parts thereof, as
well as providing the services for which there is a Common Area Operating
Expense pursuant to Paragraph 4.2.  Landlord shall not be obligated to paint the
exterior or interior surfaces of exterior walls nor shall Landlord be obligated
to maintain, repair or replace windows, doors or plate glass of the Premises.
Tenant expressly waives the benefit of any statute now or hereafter in effect
which would otherwise afford Tenant the right to make repairs at Landlord's
expense or terminate this Lease because of Landlord's failure to keep the
Building, Industrial Center or Common Areas in good order, condition and

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<PAGE>

repair. Landlord will use commercially reasonable efforts to minimize the
interference caused by any such repairs and will diligently and expeditiously
pursue the completion of same. Landlord, at its sole cost and expense, shall
comply with all laws, orders and regulations of Federal, state, county and
municipal authorities (including without limitation, all ADA, OSHA and ASHRAE
regulations) any other Applicable Requirements relating to the Industrial
Center, the Building and the Premises, except those that are related to the
specific use and occupancy of the Premises by Tenant, any Alterations, Utility
Installations and Tenant's Work.

     7.3  Utility Installations, Trade Fixtures, Alterations.

          (a)  Definitions; Consent Required. The term "Utility Installations"
is used in this Lease to refer to all air lines, power panels, electrical
distribution, security, fire protections systems, communications systems,
lighting fixtures, heating, ventilating and air conditioning equipment,
plumbing, and fencing in, on or about the Premises, excluding Tenant's Work (as
defined in Paragraph 50). The term "Trade Fixtures" shall mean Tenant's
machinery and equipment which can be removed without doing material damage to
the Premises. The term "Alterations" shall mean any modification of the
improvements on the Premises which are provided by Landlord under the terms of
this Lease, other than Tenant's Work, Utility Installations or Trade Fixtures.
"Tenant-Owned Alterations and/or Utility Installations" are defined as
Alterations and/or Utility Installations made by Tenant that are not yet owned
by Landlord pursuant to Paragraph 7.4(a). Tenant shall not make nor cause to be
made any Alterations or Utility Installations in, on, under or about the
Premises without Landlord's prior written consent. Tenant may, however, make
non-structural Utility Installations to the interior of the Premises (excluding
the roof) without Landlord's consent but upon notice to Landlord, so long as
they are not visible from the outside of the Premises, do not involve
puncturing, relocating or removing the roof or any existing walls, or changing
or interfering with the fire sprinkler or fire detection systems and the
cumulative cost thereof during the term of this Lease as extended does not
exceed $50,000.

          (b)  Consent. Any Alterations or Utility Installations that Tenant
shall desire to make and which require the consent of the Landlord shall be
presented to Landlord in written form with detailed plans. All consents given by
Landlord, whether by virtue of Paragraph 7.3(a) or by subsequent specific
consent, shall be deemed conditioned upon: (i) Tenant's acquiring all applicable
permits required by governmental authorities; (ii) the furnishing of copies of
such permits together with a copy of the plans and specifications for the
Alteration or Utility Installation to Landlord prior to commencement of the work
thereon; and (iii) the compliance by Tenant with all conditions of said permits
in a prompt and expeditious manner. Any Alterations of Utility Installations by
Tenant during the term of this Lease shall be done in a good and workmanlike
manner, with good and sufficient materials, and be in compliance with all
Applicable Requirements. Tenant shall promptly upon completion thereof furnish
Landlord with as-built plans and specifications therefor. Landlord may (but
without obligation to do so) condition its consent to any requested Alteration
or Utility Installation that costs $2,500.00 or more upon Tenant's providing
Landlord with a lien and completion bond in an amount equal to one and one-half
times the estimated cost of such Alteration or Utility Installation.

          (c)  Lien Protection. Tenant shall pay when due all claims for labor
or materials furnished or alleged to have been furnished to or for Tenant at or
for use on the Premises, which claims are or may be secured by any mechanic's or
materialmen's lien against the Premises or any interest therein. Tenant shall
give Landlord not less than ten (10) days' notice prior to the commencement of
any work in, on, or about the Premises, and Landlord shall have the right to
post notices of non-responsibility in or on the Premises as provided by law. If
Tenant shall, in good faith, contest the validity of any such lien, claim or
demand, then Tenant shall, at its sole expense, defend and protect itself,
Landlord and the Premises against the same and shall pay and satisfy any such
adverse judgment that may be rendered thereon before the enforcement thereof
against the Landlord or the Premises. If Landlord shall require, Tenant shall
furnish to Landlord a surety bond satisfactory to Landlord in an amount equal to
one and one-half times the amount of such contested lien claim or demand,
indemnifying Landlord against liability for the same, as required by law for the
holding of the Premises free from the effect of such lien or claim. In addition,
Landlord may require Tenant to pay Landlord's reasonable attorneys' fees and
costs in participating in such action if landlord shall decide it is to its best
interest to do so.

     7.4  Ownership, Removal, Surrender, and Restoration.

          (a)  Ownership. Subject to Landlord's right to require their removal
and to cause Tenant to become the owner thereof as hereinafter provided in this
Paragraph 7.4, all Alterations and Utility Installations made to the Premises by
Tenant shall be the property of and owned by Tenant, but considered a part of
the Premises. Landlord may, at any time and at its option, elect in writing to
Tenant to be the owner of all or any specified part of the Tenant-Owned
Alterations and Utility Installations. Unless otherwise instructed per
Subparagraph 7.4(b) hereof, all Tenant-Owned Alterations and Utility
Installations shall, at the expiration or earlier termination of this Lease,
become the property of Landlord and remain upon the Premises and be surrendered
with the Premises by Tenant.

          (b)  Removal. Unless otherwise agreed in writing, Landlord may require
that any or all Tenant-Owned Alterations or Utility Installations be removed by
the expiration or earlier termination of this Lease, notwithstanding that their
installation may have been consented to by Landlord. Landlord may require the
removal at any time of all or any part of any Alterations or Utility
Installations made without the required consent of Landlord.

          (c)  Surrender/Restoration. The voluntary or other surrender of this
Lease by Tenant, or a mutual cancellation thereof, shall not work a merger, and
shall, at the option of Landlord, terminate all or any existing subleases or
subtenancies, or may, at the option of Landlord, operate as an assignment to
Landlord of any or all such subleases or subtenancies. Immediately prior to the
expiration or sooner termination of this Lease, Tenant shall remove all of
Tenant's signs from the exterior of the Building and shall remove all of
Tenant's equipment, trade fixtures, furniture, supplies, wall decorations and
other personal property from the Premises, and shall vacate and

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<PAGE>

surrender the Premises to Landlord in the same condition, broom clean and
freshly repainted, as existed at the Lease Commencement Date. Tenant shall
repair all damage to the Premises caused by Tenant or by Tenant's removal of
Tenant's property and all damage to the exterior of the Building caused by
Tenant's removal of Tenant's signs. Tenant shall patch and refinish, to
Landlord's reasonable satisfaction, all penetrations made by Tenant or its
employees to the floor, walls or ceiling of the Leased Premises, whether such
penetrations were made with Landlord's approval or not. Tenant shall replace all
stained or damaged ceiling tiles and shall repair or replace, as necessary, all
wall coverings and clean or replace, as may be required, floor coverings to the
reasonable satisfaction of Landlord. Tenant shall replace all burned out light
bulbs and damaged or stained light lenses, and shall repaint all painted walls.
Tenant shall repair all damage caused by Tenant to the exterior surface of the
Building and the paved surfaces of the outside areas adjoining the Premises and,
where necessary, replace or resurface same. Additionally, Tenant shall, prior to
the expiration or sooner termination of this Lease, remove any improvements,
constructed or installed by Tenant which Landlord requests be so removed by
Tenant and repair all damage caused by such removal. If the Leased Premises are
not surrendered to Landlord in the condition required by this Article at the
expiration or sooner termination of this Lease, Landlord may, at Tenant's
expense, so remove Tenant's signs, property and/or improvements not so removed
and make such repairs and replacements not so made or hire, at Tenant's
expenses, independent contractors to perform such work. Tenant shall be liable
to Landlord for all reasonable costs incurred by Landlord in returning the
Premises to the required condition and Tenant shall be deemed to have
impermissibly held over until such time as such required work is completed.
Tenant shall pay Base Rent and Tenant's Share of Common Area Operating Expenses
in accordance with the terms of the Holding Over paragraph until such work is
completed.

8.   Insurance; Indemnity.

     8.1  Payment of Premiums. The cost of the premiums for the insurance
policies maintained by Landlord under this Paragraph 8 shall be a Common Area
Operating Expense pursuant to Paragraph 4.2 hereof. Premiums for policy periods
commencing prior to, or extending beyond, the term of this Lease shall be
prorated to coincide with the corresponding Commencement Date or Expiration
Date.

     8.2  Liability Insurance.

          (a)  Carried by Tenant. Tenant shall obtain and keep in force during
the term of this Lease a Commercial General Liability policy of insurance
protecting Tenant, Landlord and any Lender(s) whose names have been provided to
Tenant in writing (as additional insureds) against claims for bodily injury,
personal injury and property damage based upon, involving or arising out of the
ownership, use, occupancy or maintenance of the Premises and all areas
appurtenant thereto. Such insurance shall be on an occurrence basis providing
single limit coverage in an amount not less than $1,000,000 per occurrence with
an "Additional Insured-Managers or Landlords of Premises: endorsement and
contain the "Amendment of the Pollution Exclusion" endorsement for damage caused
by heat, smoke or fumes from a hostile fire. The policy shall not contain any
intra-insured exclusions as between insured persons or organizations, but shall
include coverage for liability assumed under this Lease as an "insured contract"
for the performance of Tenant's indemnity obligations under this Lease. The
limits of said insurance required by this Lease or as carried by Tenant shall
not, however, limit the liability of Tenant nor relieve Tenant of any obligation
hereunder. All insurance to be required by this Lease or as carried by Tenant
shall not, however, limit the liability of Tenant nor relieve Tenant of any
obligation hereunder. All insurance to be carried by Tenant shall be primary to
and not contributory with any similar insurance carried by Landlord, whose
insurance shall be considered excess insurance only.

          (b)  Carried by Landlord. Landlord shall also maintain liability
insurance described in Paragraph 8.2(a) above, in addition to and not in lieu
of, the insurance required to be maintained by Tenant. Tenant shall not be named
as an additional insured therein.

     8.3  Property Insurance-Building, Improvements and Rental Value.

          (a)  Building and Improvements. Landlord shall obtain and keep in
force during the term of this Lease a policy or policies in the name of
Landlord, with loss payable to Landlord and to any Lender(s), insuring against
loss or damage to the Premises. Such insurance shall be for full replacement
cost, as the same shall exist from time to time, or the amount required by any
Lender(s), but in no event more than the commercially reasonable and available
insurable value thereof if, by reason of the unique nature or age of the
improvements involved, such latter amount is less than full replacement cost.
Tenant-Owned Alterations and Utility Installations, Trade Fixtures and Tenant's
personal property shall be insured by Tenant pursuant to Paragraph 8.4. If the
coverage is available and commercially appropriate, Landlord's policy or
policies shall insure against all risks of direct physical loss or damage (and
at Landlord's option the perils of flood and/or earthquake), including coverage
for any additional costs resulting from debris removal and reasonable amounts of
coverage for the enforcement of any ordinance or law regulating the
reconstruction or replacement of any undamaged sections of the Building required
to be demolished or removed by reason of the enforcement of any building,
zoning, safety or land use laws as the result of a covered loss, but not
including plate glass insurance. Said policy or policies shall also contain an
agreed valuation provision in lieu of any co-insurance clause, waiver of
subrogation, and inflation guard protection causing an increase in the annual
property insurance coverage amount by a factor of not less than the adjusted
U.S. Department of Labor Consumer Price Index for All Urban Consumers for the
city nearest to where the Premises are located.

          (b)  Rental Value. Landlord shall also obtain and keep in force during
the term of this Lease a policy or policies in the name of Landlord, with loss
payable to Landlord and any Lender(s), insuring the loss of the full rental and
other charges payable by all tenants of the Building to Landlord for at least
one year (including all Real Property Taxes, insurance costs, all Common Area
Operating Expenses and any scheduled rental increases). Said insurance may
provide that in the event the Lease is terminated by reason of an insured loss,
the period of indemnity for such coverage shall be extended beyond the date of
the completion of repairs or replacement of the Premises, to

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                                      -9-
<PAGE>

provide for one full year's loss of rental revenues from the date of any such
loss. Said insurance shall contain an agreed valuation provision in lieu of any
co-insurance clause, and the amount of coverage shall be adjusted annually to
reflect the projected rental income, Real Property Taxes, insurance premium
costs and other expenses, if any, otherwise payable, for the next 12-month
period. Common Area Operating Expenses shall include any deductible amount in
the event of such loss.

          (c)  Adjacent Premises. Tenant shall pay for any increase in the
premiums for the property insurance of the Building and for the Common Areas or
other buildings in the Industrial Center if said increase is caused by Tenant's
acts, omissions, use or occupancy of the Premises.

          (d)  Tenant's Improvements. Since Landlord is the Insuring Party,
Landlord shall not be required to insure Tenant-Owned Alterations and Utility
Installations unless the item in question has become the property of Landlord
under the terms of this Lease.

     8.4  Tenant's Property Insurance. Subject to the requirements of Paragraph
8.5, Tenant at its cost shall maintain insurance coverage on all of Tenant's
personal property, Trade Fixtures and Tenant-Owned Alterations and Utility
Installations in, on, or about the Premises similar in coverage to that carried
by Landlord as the Insuring Party under Paragraph 8.3(a). Such insurance shall
be full replacement cost coverage with a deductible not to exceed $1,000 per
occurrence. The proceeds from any such insurance shall be used by Tenant for the
replacement of personal property and the restoration of Trade Fixtures and
Tenant-Owned Alterations and Utility Installations. Upon request from Landlord,
Tenant shall provide Landlord with written evidence that such insurance is in
force.

     8.5  Insurance Policies. Insurance required hereunder shall be in companies
duly licensed to transact business in the state where the Premises are located,
and maintaining during the policy term a "General Policyholders Rating" of at
least B+, V, or such other rating as may be required by a Lender, as set forth
in the most current issue of "Best's Insurance Guide." Neither Landlord nor
Tenant shall permit to be done anything which shall invalidate the insurance
policies referred to in this Paragraph 8. Each party shall cause to be delivered
to the other party, within seven (7) days after the Early Possession Date,
certified copies of, or certificates evidencing the existence and amounts of,
the insurance required under Paragraph 8.2(a) and 8.4. No such policy shall be
cancelable or subject to modification except after thirty (30) days' prior
written notice to the other party. Tenant shall at least thirty (30) days prior
to the expiration of such policies, furnish Landlord with evidence of renewals
or "insurance binders" evidencing renewal thereof, or Landlord may order such
insurance and charge the cost thereof to Tenant, which amount shall be payable
by Tenant to Landlord upon demand.

     8.6  Waiver of Subrogation. Without affecting any other rights or remedies,
Tenant and Landlord each hereby release and relieve the other, and waive their
entire right to recover damages (whether in contract or in tort) against the
other, for loss or damage to their property arising out of or incident to the
perils required to be insured against under Paragraph 8. The effect of such
releases and waivers of the right to recover damages shall not be limited by the
amount of insurance carried or required, or by any deductibles applicable
thereto. Landlord and Tenant agree to have their respective insurance companies
issuing property damage insurance waive any right to subrogation that such
companies may have against Landlord or Tenant, as the case may be, so long as
the insurance is not invalidated thereby.

     8.7  Indemnity. Tenant, shall, during the term of this Lease, indemnify and
save harmless Landlord and any agents of Landlord from any and all loss, damage,
claims of damage, obligations, cause or causes of action, or liabilities of any
kind or nature (including reasonable costs of attorney's fees if Landlord is
made a party to any action which Tenant's indemnity runs hereunder) by reason of
injury or death of any person or persons or damage to any property of any kind
and to whomsoever belonging, including injury or death to the person or damage
to the property of Tenant, Tenant's officers, directors, employees, agents,
guests, subtenants and assignees, concessionaires and licensees, and any other
person, firm or corporation selling or manufacturing merchandise or services
upon or from the demised premises, or any part thereof, from any cause or causes
whatsoever which result from Tenant's use of the Premises or the Common Areas or
from any other activity done, permitted or suffered by Tenant on the Premises or
the Common Areas (except that which is caused by the sole active negligence or
willful misconduct of Landlord or its Agents or by the failure of Landlord to
observe any of the terms and conditions of this Lease , if such failure has
persisted for an unreasonable period after written notice of such failure. As a
material part of the consideration to Landlord, Tenant hereby assumes all risk
of damage to property or injury to persons in or about the Premises from any
cause whatsoever (except that which is cause by the sole active negligence or
willful misconduct by Landlord or its Agents or by the failure of Landlord to
observe any of the terms and conditions of this lease, if such failure has
persisted for an unreasonable period after written notice of such failure).
Tenant's obligations under this paragraph shall survive the termination of this
Lease.

     8.8  Exemption of Landlord from Liability. Landlord shall not be liable for
injury or damage which may be sustained by Tenant or to the person or goods,
wares, merchandise or other property of Tenant, Tenant's employees, contractors,
invitees, customers, or any other person in or about the Premises, whether such
damage or injury is caused by or results from fire, earthquake, steam,
electricity, gas, water or rain, which may leak or from or into any part of the
premises or from the breakage, leakage, obstruction or other defects of pipes,
fire sprinklers, wires, appliances, plumbing, HVAC or lighting fixtures, or from
any other cause, whether said injury or damage results from conditions arising
upon the Premises or upon other portions of the Building of which the Premises
are a part, from other sources or places, and regardless of whether the cause of
such damage or injury or the means of preparing the same is accessible or not.
Landlord shall not be liable for any damages arising from any act or neglect of
any other tenant of Landlord nor from the failure by Landlord to enforce the
provisions of any other lease in the Industrial Center. Notwithstanding
Landlord's negligence or breach of this Lease, Landlord shall under no
circumstances be liable for injury to Tenant's business or for any loss of
income or profit therefrom.

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                                      -10-
<PAGE>

9.   Damage or Destruction.

     9.1  Definitions.

          (a)  "Premises Partial Damage" shall mean damage or destruction to the
Premises, other than Tenant-Owned Alterations and Utility Installations, the
repair cost of which damage or destruction is less than fifty percent (50%) of
the then Replacement Cost (as defined in Paragraph 9.1(d) of the Premises
(excluding the Tenant-Owned Alterations and Utility Installations and Trade
Fixtures) immediately prior to such damage or destruction and with respect to
which the repair can be completed in Landlord's reasonable judgment within nine
(9) months after the occurrence of such damage.

          (b)  "Premises Total Destruction" shall mean damage or destruction to
the Premises, other than Tenant-Owned Alterations and Utility Installations, the
repair cost of which damage or destruction is fifty percent (50%) or more of the
then Replacement Cost of the Premises (excluding Tenant-Owned Alterations and
Utility Installations and Trade Fixtures) immediately prior to such damage or
destruction. In addition, damage or destruction to the Building, other than
Tenant-Owned Alterations and Utility Installations and Trade Fixtures of any
tenants of the Building, the cost of which damage or destruction is fifty
percent (50%) or more of the then Replacement Cost (excluding Tenant-Owned
Alterations and Utility Installations and Trade Fixtures of any Tenants of the
Building) of the Building shall, at the option of Landlord, be deemed to be
Premises total Destruction.

          (c)  "Project Total Destruction" shall mean damage or destruction to
the Project or Building in which the premises are located, regardless of the
damage to the premises. The cost of which damage or destruction is fifty percent
(50%) or more of the then Replacement Cost of the Project (excluding Tenant-
Owned Alterations and Utility Installations and Trade Fixtures) immediately
prior to such damage or destruction.

          (c)  "Insured Loss" shall mean damage or destruction to the Premises,
other than Tenant-Owned Alterations and Utility Installations and Trade
Fixtures, which was caused by an event required to be covered by the insurance
described in Paragraph 8.3(a) irrespective of any deductible amounts or coverage
limits involved.

          (d)  "Replacement Cost" shall mean the cost to repair or rebuild the
improvements owned by Landlord at the time of the occurrence to their condition
existing immediately prior thereto, including demolition, debris removal and
upgrading required by the operation of applicable building codes, ordinances or
laws, and without deduction for depreciation.

          (e)  "Hazardous Substance Condition" shall mean the occurrence or
discovery of a condition involving the presence of, or a contamination by, a
Hazardous Substance as defined in Paragraph 6.2(a), in, on, or under the
Premises.

     9.2  Premises Partial Damage. If Premises Partial Damage occurs, then
Landlord shall, at Landlord's expense, repair such damage (but not Tenant's
Trade Fixtures or Tenant-Owned Alterations and Utility Installations) as soon as
reasonably possible, but only to the extent of the available insurance proceeds.
In the event that the available insurance proceeds are insufficient to enable
Landlord to fully restore the Premises to the condition they were in prior to
any Premises Partial Damage and, as a result, Landlord elects not to fully
restore the Premises to such condition, Landlord shall promptly notify Tenant to
that effect in writing in which case Tenant shall elect one of the following
options: (a) agree to supply Landlord with funds equal to the difference between
the available insurance proceeds and the cost to fully restore the Premises, in
which case Landlord shall promptly fully restore the Premises to the condition
they were in prior to the Premises Partial Damage, (b) terminate the Lease by
written notice of termination to Landlord, in which case Tenant shall be
entitled to continue to occupy the Premises, subject to all of the terms of the
Lease, for a reasonable period of time (not to exceed 12 months, while Tenant
secures another comparable facility to relocate to, or (c) continue to occupy
the Premises for the remainder of the Lease Term, in which case Landlord shall
promptly restore the Premises to the extent permitted by the available insurance
proceeds and this Lease shall continue in full force and effect (and Tenant, at
its option and expense, may make additional repairs to the Premises to more
fully restore them to the condition they were in prior to the Premises Partial
Damage). Tenant shall advise Landlord in writing as to which option Tenant
elects within sixty (60) days after Tenant's receipt of Landlord's initial
notice. Unless otherwise agreed, Tenant shall in no event have any right to
reimbursement from Landlord for any funds contributed or costs incurred by
Tenant to repair any Premises Partial Damage. For purposes of the foregoing,
"available insurance proceeds" shall include any amounts which would have been
available in the absence of Landlord's failure to maintain the insurance
required under, or otherwise comply with the provisions of Paragraph 8.3 (a).

     9.3  Premises Total Damage. If Premises Total Damage, unless caused by a
negligent or willful act of Tenant (in which event Tenant shall make the repairs
at Tenant's expense and this Lease shall continue in full force and effect),
Landlord may at Landlord's option, either (i) repair such damage as soon as
reasonably possible at Landlord's expense, in which event this Lease shall
continue in full force and effect, or (ii) give written notice to Tenant within
thirty (30) days after receipt by Landlord of knowledge of the occurrence of
such damage of Landlord's desire to terminate this Lease as of the date sixty
(60) days following the date of such notice. In the event Landlord elects to
give such notice of Landlord's intention to terminate this Lease, Tenant shall
have the right within ten (10) days after the receipt of such notice give
written notice to Landlord of Tenant's commitment to pay for the repair of such
damage totally at Tenant's expense and without reimbursement from Landlord.
Tenant shall provide Landlord with the required funds or satisfactory assurance
thereof within thirty (30) days following such commitment from Tenant. In such
event this Lease shall continue in full force and effect, and Landlord shall
proceed to make such repairs as soon as reasonably possible after the required
funds are available. If Tenant does not give such notice and provide the funds
or assurance thereof within the times specified above, this Lease shall
terminate as of the date specified in Landlord's notice of termination.

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                                      -11-
<PAGE>

     9.4  (Intentionally Omitted)

     9.5  Damage Near End of Term. If at any time during the last six (6) months
of the term of this Lease there is damage for which the cost to repair exceeds
one month's Base Rent, whether or not an Insured Loss, Landlord may, at
Landlord's option, terminate this Lease effective sixty (60) days following the
date of occurrence of such damage by giving written notice to Tenant of
Landlord's election to do so within thirty (30) days after the date of
occurrence of such damage. Provided, however, if Tenant at that time has an
exercisable option to extend this Lease, then Tenant may preserve this Lease by
exercising such option. If Tenant duly exercises such option during such period,
Landlord shall, at Landlord's expense repair such damage as soon as reasonably
possible and this Lease shall continue in full force and effect. If Tenant fails
to exercise such option, then this Lease shall terminate as of the date set
forth in the first sentence of this Paragraph 9.5.

     9.6  Abatement of Rent; Tenant's Remedies.

          (a)  In the event of (i) Premises Partial Damage or (ii) Hazardous
Substance Condition for which Tenant is not legally responsible, the Base Rent,
Common Area Operating Expenses and other charges, if any, payable by Tenant
hereunder for the period during which such damage or condition, its repair,
remediation or restoration continues, shall be abated in proportion to the
degree to which Tenant's use of the Premises is impaired,. Except for abatement
of Base Rent, Common Area Operating Expenses and other charges, if any, as
aforesaid, all other obligations of Tenant hereunder shall be performed by
Tenant, and Tenant shall have no claim against Landlord for any damage suffered
by reason of any such damage, destruction, repair, remediation or restoration.

          (b)  If Landlord shall be obligated to repair or restore the Premises
under the provisions of this Paragraph 9 and shall not commence, in a
substantial and meaningful way, the repair or restoration of the Premises within
ninety (90) days after such obligation shall accrue, Tenant may, at any time
prior to the commencement of such repair or restoration, give written notice to
Landlord and to any Lenders of which Tenant has actual notice of Tenant's
election to terminate this Lease on a date not less than sixty (60) days
following the giving of such notice. If Tenant gives such notice to Landlord and
such Lenders and such repair or restoration is not commenced within thirty (30)
days after receipt of such notice, this Lease shall terminate as of the date
specified in said notice. If Landlord or a Lender commences the repair or
restoration of the Premises within thirty (30) days after the receipt of such
notice, this Lease shall continue in full force and effect. "Commence" as used
in this Paragraph 9.6 shall mean either the unconditional authorization of the
preparation of the required plans, or the beginning of the actual work on the
Premises, whichever occurs first.

     9.7  Hazardous Substance Conditions. If a Hazardous Substance Condition
occurs, unless Tenant is legally responsible therefor (in which case Tenant
shall make the investigation and remediation thereof required by Applicable
Requirements and this Lease shall continue in full force and effect, but subject
to Landlord's rights under Paragraph 6.2(c) and Paragraph 13), Landlord may at
Landlord's option either (i) investigate and remediate such Hazardous Substance
Condition, if required, as soon as reasonably possible at Landlord's expense, in
which event this Lease shall continue in full force and effect, or (ii) if the
estimated cost to investigate and remediate such condition exceeds twelve (12)
times the then monthly Base Rent or $50,000, whichever is greater, give written
notice to Tenant within thirty (30) days after receipt by Landlord of knowledge
of the occurrence of such Hazardous Substance Condition of Landlord's desire to
terminate this Lease as of the date one hundred eighty (180) days following the
date of such notice. In the event Landlord elects to give such notice of
Landlord's intention to terminate this Lease, Tenant shall have the right within
ten (10) days after receipt of such notice to give written notice to Landlord of
Tenant's commitment to pay for the excess costs of (a) investigation and
remediation of such Hazardous Substance Condition to the extent required by
Applicable Requirements, over (B) an amount equal to twelve (12) times the then
monthly Base Rent or $50,000 whichever is greater. Tenant shall provide Landlord
with the funds required of Tenant or satisfactory assurance thereof within
thirty (30) days following said commitment by Tenant. In such event this Lease
shall continue in full force and effect, and Landlord shall proceed to make such
investigation and remediation as soon as reasonably possible after the required
funds are available. If Tenant does not give such notice and provide the
required funds or assurance thereof within the time period specified above, this
Lease shall terminate as of the date specified in Landlord's notice of
termination.

     9.8  Termination - Advance Payments. Upon termination of this Lease
pursuant to this Paragraph 9, Landlord shall return to Tenant any advance
payment made by Tenant to Landlord and so much of Tenant's Security Deposit as
has not been, or is not then required to be, used by Landlord under the terms of
this Lease.

     9.9  Waiver of Statutes. Landlord and Tenant agree that the terms of this
Lease shall govern the effect of any damage to or destruction of the Premises
and the Building with respect to the termination of this Lease and hereby waive
the provisions of any present or future statute to the extent it is inconsistent
herewith.

10.  Real Property Taxes.

     10.1 Payment of Taxes. Landlord shall pay the Real Property Taxes, as
defined in Paragraph 10.2, applicable to the Industrial Center, and except as
otherwise provided in Paragraph 10.3, any such amounts shall be included in the
calculation of Common Area Operating Expenses in accordance with the provisions
of Paragraph 4.2.

     10.2 Real Property Tax Definition. As used herein, the term "Real Property
Taxes" shall include any form of real estate tax or assessment, general,
special, ordinary or extraordinary, and any license fee, commercial rental tax,
improvement bond or bonds, levy or tax (other than inheritance, personal income
or estate taxes) imposed upon the Industrial Center by any authority having the
direct or indirect power to tax, including any city, state or federal
government, or any school, agricultural, sanitary, fire, street, drainage, or
other improvement district thereof, levied

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                                      -12-
<PAGE>

against any legal or equitable interest of Landlord in the Industrial Center or
any portion thereof, Landlord's right to rent or other income therefrom, and/or
Landlord's business of leasing the Premises. The term "Real Property Taxes"
shall also include any tax, fee, levy, assessment or charge, or any increase
therein, imposed by reason of events occurring, or changes in Applicable Law
taking effect, during the term of this Lease including but not limited to a
change in the ownership of the Industrial Center or in the improvements thereon
(except in the event of more than one change in ownership in the first 5 years
of the lease term), the execution of this Lease, or any modification, amendment
or transfer thereof, and whether or not contemplated by the Parties. In
calculating Real Property Taxes for any calendar year, the Real Property Taxes
for any real estate tax year shall be included in the calculation of Real
Property Taxes for such calendar year based upon the number of days which such
calendar year and tax year have in common.

     10.3  Additional Improvements. Notwithstanding Paragraph 10.1 hereof,
Tenant shall, however, pay to Landlord at the time Common Area Operating
Expenses are payable under Paragraph 4.2, the entirety of any increase in Real
Property Taxes if assessed solely by reason of Alterations, Trade Fixtures or
Utility Installations placed upon the Premises by Tenant or at Tenant's request.

     10.4  Joint Assessment.  If the Building is not separately assessed, Real
Property Taxes allocated to the Building shall be an equitable proportion of the
Real Property Taxes for all of the land and improvements included within the tax
parcel assessed, such proportion to be determined by Landlord from the
respective valuations assigned in the assessor's work sheets or such other
information as may be reasonably available.  Landlord's reasonable determination
thereof, in good faith, shall be conclusive.

     10.5  Tenant's Property Taxes.  Tenant shall pay prior to delinquency all
taxes assessed against and levied upon Tenant-Owned Alterations and Utility
Installations, Trade Fixtures, furnishings, equipment and all personal property
of Tenant contained in the Premises or stored within the Industrial Center.
When possible, Tenant shall cause its Tenant-Owned Alterations and Utility
Installations, Trade Fixtures, furnishings, equipment and all other personal
property to be assessed and billed separately from the real property of
Landlord.  If any of Tenant's said property shall be assessed with Landlord's
real property, Tenant shall pay Landlord the taxes attributable to Tenant's
property within ten (10) days after receipt of a written statement setting forth
the taxes applicable to Tenant's property.

11.  Utilities. Tenant shall pay directly for all utilities and services
supplied to the Premises, including but not limited to electricity, telephone,
security, gas, trash removal and cleaning of the Premises, together with any
taxes thereon. Tenant shall provide separate electricity and utility meters for
the Building as part of Tenant's Work. If any such utilities or services are not
separately metered to the Premises or separately billed to the Premises, Tenant
shall pay to Landlord a reasonable proportion to be determined by Landlord of
all such charges jointly metered or billed with other premises in the Building,
in the manner and within the time periods set forth in Paragraph 4.2(d).
Landlord shall not be liable to Tenant for injury, damage, loss of Tenant's
business or profits, from any failure, interruption, rationing or other
curtailment in the supply of electric, gas, water or other utilities from
whatever cause.

12   Assignment and Subletting.

     12.1  Landlord's Consent Required.

           (a)  Tenant shall not assign this Lease, nor any right hereunder, nor
sublet the premises, nor any part thereof, without the prior written consent of
Landlord. In exercising its reasonable discretion Landlord may consider all
commercially relevant factors involved in the leasing of the Premises including
but not limited to the a) the creditworthiness and financial stability of the
prospective assignee or subtenant; b) references of prior landlords; c) the past
history of such subtenant, with respect to involvement in litigation and
bankruptcy proceedings; d) the impact of said subtenant or assignee and proposed
use of the Premises on pedestrian and vehicular traffic, other tenants, and
parking; e) the use, generation or disposal of Hazardous Substances. The
presence of one material negative factor enumerated above shall be deemed
reasonable justification for Landlord's withholding consent. At the inception of
the Lease, Tenant is a California corporation. In the event Tenant elects to
reincorporate as a Delaware corporation, the assignment or other transfer of
this Lease from the California corporation to the Delaware corporation, provided
that all or substantially all of the other assets of the California corporation
are concurrently transferred to the Delaware corporation, shall not constitute
an assignment or transfer that requires the consent of Landlord.

           (b)  No assignment or subleasing by Tenant shall relieve Tenant of
any of its obligations under this Lease unless specifically agreed to by
Landlord in writing.

           (c)  The involvement of Tenant or its assets in any transaction, or
series of transactions (by way of merger, sale, acquisition, financing,
refinancing, transfer, leveraged buy-out or otherwise), whether or not a formal
assignment or hypothecation of this Lease or Tenant's assets occurs, which
results or will result in a reduction of the Net Worth of Tenant, as hereinafter
defined, by an amount equal to or greater than twenty-five percent (25%) of such
Net Worth of Tenant as it was represented to Landlord at the time of full
execution and delivery of this Lease or at the time of the most recent
assignment to which Landlord has consented, or as it exists immediately prior to
said transaction or transactions constituting such reduction, at whichever time
said Net Worth of Tenant was or is greater, shall be considered an assignment of
this Lease by Tenant to which Landlord may reasonably withhold its consent. "Net
Worth of Tenant" for purposes of this Lease shall be the net worth of Tenant
(excluding any Guarantors) established under generally accepted accounting
principles consistently applied.

           (d)  An assignment or subletting of Tenant's interest in this Lease
without Landlord's specific prior written consent shall be a Default by Tenant
which shall be subject to the provisions of Paragraph 13. To the extent Landlord
becomes entitled to terminate this Lease under the provisions of Paragraph 13 as
a result of any such Default, Landlord may elect to either: (i) terminate this
Lease in accordance with the provisions of Paragraph 13, or (ii)

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                                      -13-
<PAGE>

upon thirty (30) days' written notice ("Landlord's Notice"), increase the
monthly Base Rent for the Premises to the greater of the then fair market rental
value of the Premises, as reasonably determined by Landlord, or one hundred ten
percent (110%) of the Base Rent then in effect. Pending determination of the new
fair market rental value, if disputed by Tenant, Tenant shall pay the amount set
forth in Landlord's Notice, with any overpayment credited against the next
installment(s) of Base Rent coming due, and any underpayment for the period
retroactively to the effective date of the adjustment being due and payable
immediately upon the determination thereof. In the event of any such rental
adjustment, (i) the purchase price of any option to purchase the Premises held
by Tenant shall be subject to similar adjustment to the then fair market value
as reasonably determined by Landlord (without the Lease being considered an
encumbrance or any deduction for depreciation or obsolescence, and considering
the Premises at its highest and best use and in good condition) or one hundred
ten percent (110%) of the price previously in effect, (ii) any index-oriented
rental or price adjustment formulas contained in this Lease shall be adjusted to
require that the base index be determined with reference to the index applicable
to the time of such adjustment, and (iii) any fixed rental adjustments scheduled
during the remainder of the Lease term shall be increased in the same ratio as
the new rental bears to the Base Rent in effect immediately prior to the
adjustment specified in Landlord's Notice.

           (c)  Tenant's remedy for any breach of this Paragraph 12.1 by
Landlord shall be limited to compensatory damages and/or injunctive relief.

     12.2  Terms and Conditions Applicable to Assignment and Subletting.

           (a)  Regardless of Landlord's consent, any assignment or subletting
shall not (i) be effective without the express written assumption by such
assignee or subtenant of the obligations of Tenant under this Lease, (ii)
release Tenant of any obligations hereunder, nor (iii) alter the primary
liability of Tenant for the payment of Base Rent and other sums due Landlord
hereunder or for the performance of any other obligations to be performed by
Tenant under this Lease.

           (b)  Landlord may accept any rent or performance of Tenant's
obligations from any person other than Tenant pending approval or disapproval of
an assignment. Neither a delay in the approval or disapproval of such assignment
nor the acceptance of any rent for performance shall constitute a waiver or
estoppel of Landlord's right to exercise its remedies for the Default or Breach
by Tenant of any of the terms, covenants or conditions of this Lease.

           (c)  The consent of Landlord to any assignment or subletting shall
not constitute a consent to any subsequent assignment or subletting by Tenant or
to any subsequent or successive assignment or subletting by the assignee or
subtenant. However, Landlord may consent to subsequent or successive assignment
or subletting by the assignee or subtenant. However, Landlord may consent to
subsequent sublettings and assignments of the sublease or any amendments or
modifications thereto without notifying Tenant or anyone else liable under this
Lease or the sublease and without obtaining their consent, and such action shall
not relieve such persons from liability under this Lease or the sublease.

           (d)  In the event of any Default or Breach of Tenant's obligation
under this Lease, Landlord may proceed directly against Tenant, any guarantors
or anyone else responsible for the performance of the Tenant's obligations under
this Lease, including any subtenant, without first exhausting Landlord's
remedies against any other person or entity responsible therefor to Landlord, or
any security held by Landlord.

           (e)  Each request for consent to an assignment or subletting shall be
in writing, accompanied by information relevant to Landlord's determination as
to the financial and operational responsibility and appropriateness of the
proposed assignee or subtenant, including but not limited to the intended use
and/or required modification of the Premises, if any. Tenant agrees to provide
Landlord with such other or additional information and/or documentation as may
be reasonably requested by Landlord.

           (f)  Any assignee of, or subtenant under, this Lease shall, by reason
of accepting such assignment or entering into such sublease, be deemed, for the
benefit of Landlord, to have assumed and agreed to conform and comply with each
and every term, covenant, condition and obligation herein to be observed or
performed by Tenant during the term of said assignment or sublease, other than
such obligations as are contrary to or inconsistent with provisions of an
assignment or sublease to which Landlord has specifically consented in writing.

     12.3  Additional Terms and Conditions Applicable to Subletting. The
following terms and conditions shall apply to any subletting by Tenant of all or
any part of the Premises and shall be deemed included in all subleases under
this Lease whether or not expressly incorporated therein:

           (a)  Tenant hereby assigns and transfers to Landlord all of Tenant's
interest in all rentals and income arising from any sublease of all or a portion
of the Premises heretofore or hereafter made by Tenant, and Landlord may collect
such rent and income and apply same toward Tenant's obligations under this
Lease; provided, however, that until a Breach (as defined in Paragraph 13.1)
shall occur in the performance of Tenant's obligations under this Lease, Tenant
may, except as otherwise provided in this Lease, receive, collect and enjoy any
Sublease Profits (as defined in Paragraph 12.4) in accordance with the
provisions of Paragraph 12.4. Landlord shall not, by reason of the foregoing
provision or any other assignment of such sublease to Landlord, nor by reason of
the collection of the rents from a subtenant, be deemed liable to the subtenant
for any failure of Tenant to perform and comply with any of Tenant's obligations
to such subtenant under such Sublease. Tenant hereby irrevocably authorizes and
directs any such subtenant, upon receipt of a written notice from Landlord
stating that a Breach exists in the performance of Tenant's obligations under
this Lease, to pay to Landlord the rents and other charges due and to become due
under the sublease. Subtenant shall rely upon any such statement and request
from Landlord and shall pay such rents and other charges to Landlord without any
obligation or right to inquire as to whether such Breach

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                                      -14-
<PAGE>

exists and notwithstanding any notice from or claim from Tenant to the contrary.
Tenant shall have no right or claim against such subtenant, or, until the Breach
has been cured, against Landlord, for any such rents and other charges so paid
by said subtenant to Landlord.

           (b)  In the event of a Breach by Tenant in the performance of its
obligations under this Lease, Landlord, at its option and without any obligation
to do so, may require any subtenant to attorn to Landlord, in which event
Landlord shall undertake the obligations of the sub landlord under such sublease
from the time of the exercise of said option to the expiration of such sublease;
provided, however, Landlord shall not be liable for any prepaid rents or
security deposit paid by such subtenant to such sub landlord or for any other
prior defaults or breaches of such sub landlord under such sublease.

           (c)  Any matter or thing requiring the consent of the sub landlord
under a sublease shall also require the consent of Landlord herein.

           (d)  No subtenant under a sublease approved by Landlord shall further
assign or sublet all or any part of the Premises without Landlord's prior
written consent.

           (e)  Landlord shall deliver a copy of any notice of Default or Breach
by Tenant to the subtenant, who shall have the right to cure the Default of
Tenant within the grace period, if any, specified in such notice.

     12.4  Sublease Profits. As used herein, "Sublease Profits" means the amount
by which rents paid by Tenant's subtenant or assignee for the Premises exceed
the Base Rent and the Common Area Operating Expenses after deducting (a) all
costs incurred by Tenant for Tenant's Work, Alterations and Utility
Installations made to the Premises at Tenant's expense to effect the sublease or
assignment; and (b) the amount of any real estate commissions paid by Tenant to
a third party in connection with the sublease or assignment, in both cases,
amortized over the term of the sublease or assignment. One hundred percent
(100%) of the Sublease Profits for the first three (3) years of any subleases or
assignments entered into by Tenant within one (1) year after the Commencement
Date shall be retained by Tenant. Fifty percent (50%) of any other Sublease
Profits will be retained by Tenant and the remaining fifty percent (50%) of such
Sublease Profits shall be paid to Landlord by Tenant on a monthly basis as they
are received by Tenant.

13.  Default; Breach; Remedies.

     13.1  Default; Breach.  Landlord and Tenant agree that if any attorney is
consulted by Landlord in connection with a Tenant Default or Breach (as
hereinafter defined), $350.00 is a reasonable minimum sum per such occurrence
for legal services and costs in the preparation and service of a notice of
Default, and that Landlord may include the cost of such services and costs in
said notice as rent due and payable to cure said default.  a "Default" by Tenant
is defined as a material failure by Tenant to observe, comply with or perform
any of the terms, covenants, conditions or rules applicable to Tenant under this
Lease.  A "Breach" by Tenant is defined as the occurrence of any one or more of
the following Defaults, and, where a grace period for cure after notice is
specified herein, the failure by Tenant to cure such Default prior to the
expiration of the applicable grace period, and shall entitle Landlord to pursue
the remedies set forth in Paragraphs 13.2 and/or 13.3.

           (a)  Except as expressly otherwise provided in this Lease, the
failure by Tenant to make any payment of Base Rent, Tenant's Share of Common
Area Operating Expenses, or any other monetary payment required to be made by
Tenant hereunder as and when due, the failure by Tenant to provide Landlord with
reasonable evidence of insurance or surety bond required under this Lease, or
the failure of Tenant to fulfill any obligation under this Lease which endangers
or threatens life or property, where such failure continues for a period of ten
(10) days following written notice thereof by or on behalf of Landlord to
Tenant.

           (b)  Except as expressly otherwise provided in this Lease, the
failure by Tenant to provide Landlord with reasonable written evidence (in duly
executed original form, if applicable) of (i) compliance with Applicable
Requirements per Paragraph 6.3, (ii) the inspection, maintenance and service
contracts required under Paragraph 7.1(b), (iii) the rescission of an
unauthorized assignment or subletting per Paragraph 12.1, (iv) a Tenancy
Statement per Paragraphs 16 or 37, (v) the subordination or non-subordination of
this Lease per Paragraph 30, (vi) the guaranty of the performance of Tenant's
obligations under this Lease if required under Paragraphs 1.11 and 37, (vii) the
execution of any document requested under Paragraph 42 (easements), or (viii)
any other documentation or information which Landlord may reasonably require of
Tenant under the terms of this lease, where any such failure continues for a
period of ten (10) days following written notice by or on behalf of Landlord to
Tenant.

           (c)  A Default by Tenant as to the terms covenants, conditions or
provisions of this Lease, or of the rules adopted under Paragraph 40 hereof that
are to be observed, complied with or performed by Tenant, other than those
described in Subparagraphs 13.1(a) or (b), above, where such Default continues
for a period of thirty (30) days after written notice thereof by or on behalf of
Landlord to Tenant; provided however, that if the nature of Tenant's Default is
such that more than thirty (30) days are reasonably required for its cure, then
it shall not be deemed to be a Breach of this Lease by Tenant if Tenant
commences such cure within said thirty (30) day period and thereafter diligently
prosecutes such cure to completion.

           (d)  The occurrence of any of the following events: (i) the making by
Tenant of any general arrangement or assignment for the benefit of creditors;
(ii) Tenant's becoming a "debtor" as defined in 11 U.S. Code Section 101 or any
successor statute thereto (unless, in the case of a petition filed against
Tenant, the same is dismissed within sixty (60) days); (iii) the appointment of
a trustee or receiver to take possession of substantially all of Tenant's assets
located at the Premises or of Tenant's interest in this Lease, where possession
is not restored to

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                                      -15-
<PAGE>

Tenant within thirty (30) days; or (iv) the attachment, execution or other
judicial seizure of substantially all of Tenant's assets located at the Premises
or of Tenant's interest in this Lease, where such seizure is not discharged
within thirty (30) days; provided, however, in the event that any provision of
this Subparagraph 13.1(e) is contrary to any applicable law, such provision
shall be of no force or effect, and shall not affect the validity of the
remaining provisions.

           (e)  The discovery by Landlord that any financial statement of Tenant
or of any Guarantor, given to Landlord by Tenant or any Guarantor, was
materially false.

           (f)  If the performance of Tenant's obligations under this Lease is
guaranteed: (i) the death of a Guarantor, (ii) the termination of a Guarantor's
liability with respect to this Lease other than in accordance with the terms of
such guaranty, (iii) a Guarantor's becoming insolvent or the subject of a
bankruptcy filing, (iv) a Guarantor's refusal to honor the guaranty, or (v) a
Guarantor's breach of its guaranty obligation on an anticipatory breach basis,
and Tenant's failure, within sixty (60) days following written notice by or on
behalf of Landlord to Tenant of any such event, to provide Landlord with written
alternative assurances of security, which, when coupled with the then existing
resources of Tenant, equals or exceeds the combined financial resources of
Tenant and the Guarantors that existed at the time of the execution of this
Lease.

     13.2  Remedies. If Tenant fails to perform any affirmative duty or
obligation of Tenant under this Lease, within ten (10) days after written notice
to Tenant (or in case of an emergency, without notice), Landlord may at its
option (but without obligation to do so), perform such duty or obligation on
Tenant's behalf, including but not limited to the obtaining of reasonably
required bonds, insurance policies, or governmental licenses, permits or
approvals. The reasonable costs and expenses of any such performance by Landlord
shall be due and payable by Tenant to Landlord upon invoice therefor. If any
check given to Landlord by Tenant shall not be honored by the bank upon which it
is drawn, Landlord, at its own option, may require all future payments to be
made under this Lease by Tenant to be made only by cashier's check. In the event
of a Breach of this Lease by Tenant (as defined in Paragraph 13.1), with or
without further notice or demand, and without limiting Landlord in the exercise
of any right or remedy which Landlord may have by reason of such Breach,
Landlord may:

           (a)  Terminate Tenant's right to possession of the Premises by any
lawful means, in which case this Lease and the term hereof shall terminate and
Tenant shall immediately surrender possession of the Premises to Landlord. In
such event Landlord shall be entitled to recover from Tenant: (i) the worth at
the time of the award of the unpaid rent which had been earned at the time of
termination; (ii) the worth at the time of award of the amount by which the
unpaid rent which would have been earned after termination until the time of
award exceeds the amount of such rental loss that the Tenant proves could have
been reasonably avoided; (iii) the worth at the time of award of the amount by
which the unpaid rent for the balance of the term after the time of award
exceeds the amount of such rental loss that the Tenant proves could be
reasonably avoided; and (iv) any other amount necessary to compensate Landlord
for all the detriment proximately caused by the Tenant's failure to perform its
obligations under this Lease or which in the ordinary course of things would be
likely to result therefrom, including but not limited to the reasonable cost of
recovering possession of the Premises, reasonable expenses of reletting,
including necessary renovation and alteration of the Premises, reasonable
attorneys' fees, and that portion of any reasonable leasing commission paid by
Landlord in connection with this Lease applicable to the unexpired term of this
Lease. The worth at the time of award of the amount referred to in provision
(iii) of the immediately preceding sentence shall be computed by discounting
such amount at the discount rate of the Federal Reserve Bank of San Francisco or
the Federal Reserve Bank District in which the Premises are located at the time
of award plus one percent (1%). Efforts by Landlord to mitigate damages caused
by Tenant's Default or Breach of this Lease shall not waive Landlord's right to
recover damages under this Paragraph 13.2. If termination of this Lease is
obtained through the provisional remedy of unlawful detainer, Landlord shall
have the right to recover in such proceeding the unpaid rent and damages as are
recoverable therein, or Landlord may reserve the right to recover all or any
part thereof in a separate suit for such rent and/or damages. If a notice and
grace period required under Subparagraph 13.1 (b), (c) or (d) was not previously
given, a notice to pay rent or quit, or to perform or quit, as the case may be,
given to Tenant under any statute authorizing the forfeiture of leases for
unlawful detainer shall also constitute the applicable notice for grace period
purposes required by Subparagraph 13.1 (b), (c) or (d). In such case, the
applicable grace period under the unlawful detainer statue shall run
concurrently after the one such statutory notice, and the failure of Tenant to
cure the Default within the greater of the two (2) such grace periods shall
constitute both an unlawful detainer and a Breach of this Lease entitling
Landlord to the remedies provided for in this Lease and/or by said statute.

           (b)  Continue the Lease and Tenant's right to possession in effect
(in California under California Civil Code Section 1951.4) after Tenant's Breach
and recover the rent as it becomes due, provided Tenant has the right to sublet
or assign, subject only to reasonably limitations. Landlord and Tenant agree
that the limitations on assignment and subletting in this Lease are reasonable.
Acts of maintenance or preservation, efforts to relet the Premises, or the
appointment of a receiver to protect the Landlord's interest under this Lease,
shall not constitute a termination of the Tenant's right to possession.

           (c)  Pursue any other remedy now or hereafter available to Landlord
under the laws or judicial decisions of the state wherein the Premises are
located.

           (d)  The expiration or termination of this Lease and/or the
termination of Tenant's right to possession shall not relieve Tenant from
liability under any indemnity provisions of this Lease as to matters occurring
or accruing during the term hereof or by reason of Tenant's occupancy of the
Premises.

     13.3  Inducement Recapture in Event of Breach. Any agreement by Landlord
for free or abated rent or other charges applicable to the Premises, or for the
giving or paying by Landlord to or for Tenant of any cash or other bonus,
inducement or consideration for Tenant's entering into this Lease, all of which
concessions are hereinafter referred to as "Inducement Provisions" shall be
deemed conditioned upon Tenant's full and faithful performance of

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                                      -16-
<PAGE>

all of the terms, covenants and conditions of this Lease to be performed or
observed by Tenant, any such Inducement Provision shall automatically be deemed
deleted from this Lease and of no further force or effect, and any rent, other
charge, bonus, inducement or consideration theretofore abated, given or paid by
Landlord under such an Inducement Provision shall be immediately due and payable
by Tenant to Landlord, and recoverable by Landlord, as additional rent due under
this Lease, notwithstanding any subsequent cure of said Breach by Tenant. The
acceptance by Landlord of rent or the cure of the Breach which initiated the
operation of this Paragraph 13.3 shall not be deemed a waiver by Landlord of the
provisions of this Paragraph 13.3 unless specifically so stated in writing by
Landlord at the time of such acceptance.

     13.4  Late Charges. Tenant hereby acknowledges that late payment by Tenant
to Landlord of rent and other sums due hereunder will cause Landlord to incur
costs not contemplated by this Lease, the exact amount of which will be
extremely difficult to ascertain. Such costs include, but are not limited to,
processing and accounting charges, and late charges which may be imposed upon
Landlord by the terms of any ground lease, mortgage or deed of trust covering
the Premises. Accordingly, if any installment of rent or other sum due from
Tenant shall not be received by Landlord or Landlord's designee within ten (10)
days after such amount shall be due, then, without any requirement for notice to
Tenant, Tenant shall pay to Landlord a late charge equal to ten percent (10%) of
such overdue amount. The parties hereby agree that such late charge represents a
fair and reasonable estimate of the costs Landlord will incur by reason of late
payment by Tenant. Acceptance of such late charge be Landlord shall in no event
constitute a waiver of Tenant's Default or Breach with respect to such overdue
amount, nor prevent Landlord from exercising any of the other rights and
remedies granted hereunder. In the event that a late charge is payable
hereunder, whether or not collected, for three (3) consecutive installments of
Base Rent, then notwithstanding Paragraph 4.1 or any other provision of this
Lease to the contrary, Base Rent shall, at Landlord's option, become due and
payable quarterly in advance.

     13.5  Breach by Landlord. Landlord shall not be deemed in breach of this
Lease unless Landlord fails within a reasonable time to perform an obligation
required to be performed by Landlord. For purposes of this Paragraph 13.5, a
reasonable time shall in no event be less than thirty (30) days after receipt by
Landlord, and by any Lender(s) whose name and address shall have been furnished
to Tenant in writing for such purpose, of written notice specifying wherein such
obligation of Landlord has not been performed; provided, however, that if the
nature of Landlord's obligation is such that more than thirty (30) days after
such notice are reasonably required for its performance, then Landlord shall not
be in breach of this Lease if performance is commenced within such thirty (30)
day period and thereafter diligently pursued to completion.

14.  Condemnation.  If the Premises or any portion thereof are taken under the
power of eminent domain or sold under the threat of the exercise of said power
(all of which are herein called "condemnation"), this Lease shall terminate as
to the part so taken as of the date the condemning authority takes title or
possession, whichever first occurs.  If more than twenty five percent (25%) of
the floor area of the Premises, or more than twenty-five percent (25%) of the
portion of the Common Areas designated for Tenant's parking, is taken by
condemnation, Tenant may, at Tenant's option, to be exercised in writing within
ten (10) days after Landlord shall have given Tenant written notice of such
taking (or in the absence of such notice, within ten (10) days after the
condemning authority shall have taken possession) terminate this Lease as of the
date the condemning authority takes such possession.  If Tenant does not
terminate this Lease in accordance with the foregoing, this Lease shall remain
in full force and effect as to the portion of the Premises remaining, except
that the Base Rent and Tenant's Share shall be reduced in the same proportion as
the rentable floor area of the Premises taken bears to the total rentable floor
area of the Premises.  No reduction of the Base Rent shall occur if the
condemnation does not apply to any portion of the Premises.  Any award for the
taking of all or any part of the  Premises under the power of eminent domain or
any payment made under threat of the exercise of such power shall be the
property of Landlord, whether such award shall be made as compensation for
diminution of value of the leasehold or for the taking of the fee, or as
severance damages; provided, however, that Tenant shall be entitled to any
compensation, separately awarded to Tenant for Tenant's relocation expenses
and/or loss of Tenant's Trade Fixtures.  In the event that this Lease is not
terminated by reason of such condemnation, Landlord shall to the extent of its
net severance damages received, over and above Tenant's Share of the legal and
other expenses incurred by Landlord in the condemnation matter, repair any
damage to the Premises caused by such condemnation authority.  Tenant shall be
responsible for the payment of any amount in excess of such net severance
damages required to complete such repair.

15.  Broker's Fees.

     15.1  Procuring Cause. The Broker(s) named in Paragraph 1.10 is/are the
procuring cause of this Lease.

     15.2  Additional Terms. Unless Landlord and Broker(s) have otherwise agreed
in writing, Landlord agrees that: (a) if Tenant exercises any Option (as defined
in Paragraph 39.1) granted under this Lease or any Option subsequently granted,
or (b) if Tenant acquires any rights to the Premises or other premises in which
Landlord has an interest, or (c) if Tenant remains in possession of the Premises
with the consent of Landlord after the expiration of the term of this Lease
after having failed to exercise an Option, or (d) if said Brokers are the
procuring cause of any other lease or sale entered into between the Parties
pertaining to the Premises and/or any adjacent property in which Landlord has an
interest, or (e) if Base Rent is increased, whether by agreement or operation of
an escalation clause herein, then as to any of said transactions, Landlord shall
not be liable to said Broker(s) to pay a fee.

     15.3  Assumption of Obligations. Any buyer or transferee of Landlord's
interest in this Lease, whether such transfer is by agreement or by operation of
law, shall be deemed to have assumed Landlord's obligation under this Paragraph
15.

     15.4  Representations and Warranties. Tenant and Landlord each represent
and warrant to the other

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                                      -17-
<PAGE>

that it has had no dealings with any person, firm, broker or finder other than
as named in Paragraph 1.10(a) in connection with the negotiation of this Lease
and/or the consummation of the transaction contemplated hereby, and that no
broker or other person, firm or entity other than said named Broker(s) is
entitled to any commission or finder's fee in connection with said transaction.
Tenant and Landlord do each hereby agree to indemnify, protect, defend and hold
the other harmless from and against liability for compensation or charges which
may be claimed by any such unnamed broker, finder or other similar party by
reason of any dealings or actions of the indemnifying Party, including any
costs, expenses, and/or attorneys' fees reasonably incurred with respect
thereto.

16.  Tenancy and Financial Statements.

     16.1  Tenancy Statement. Each Party (as "Responding Party") shall within
ten (10) days after written notice from the other Party (the "Requesting Party")
execute, acknowledge and deliver to the Requesting Party a statement in writing
in a form similar to the then most current "Tenancy Statement" form published by
the American Industrial Real Estate Association, plus such additional
information, confirmation and/or statements as may be reasonably requested by
the Requesting Party.

     16.2  Financial Statement. If Landlord desires to finance, refinance, or
sell the Premises or the Building, or any part thereof, Tenant and all the
Guarantors shall deliver to any potential lender or purchaser designated by
Landlord such financial statements of Tenant and such Guarantors as may be
reasonably required by such lender or purchaser, including but not limited to
Tenant's financial statements for the past three (3) years. All such financial
statements shall be received by Landlord and such lender or purchaser in
confidence and shall be used only for the purposes herein set forth.

17.  Landlord's Liability. The term "Landlord" as used herein shall mean the
owner or owners at the time in question of the fee title to the Premises. In the
event of a transfer of Landlord's title or interest in the Premises or in this
Lease, Landlord shall deliver to the transferee or assignee (in cash or by
credit) any unused Security Deposit held by Landlord at the time of such
transfer or assignment. Except as provided in Paragraph 15.3, upon such transfer
or assignment and delivery of the Security Deposit, as aforesaid, the prior
Landlord shall be relieved of all liability with respect to the obligations
and/or covenants under this Lease thereafter to be performed by Landlord.
Subject to the foregoing, the obligations and/or covenants in this Lease to be
performed by the Landlord shall be binding only upon the Landlord as herein
above defined. Notwithstanding any other terms or provisions of this lease,
Tenant agrees that in the event of any default or breach by Landlord with
respect to any of the terms of the Lease to be observed and performed by
Landlord (a) Tenant shall look solely to the estate and property (which is the
subject of this lease) of Landlord or any successor in interest in the property
and the Industrial Center, for the satisfaction of Tenant's remedies for the
collection of a judgment (or other judicial process) requiring the payment of
money by Landlord; (b) with the exception of the Industrial Center, no other
property or assets of Landlord, its partners, shareholders, officers or any
successor in interest shall be subject to levy, execution or other enforcement
procedure for the satisfaction if Tenant's remedies;(c) no personal liability
shall at any time be asserted or enforceable against Landlord, it's partner's or
successors in interest (except to the extent permitted in (a) above), and no
judgment will be taken against any partner, shareholder, officer or director of
Landlord. The provisions of this section shall apply only to the Landlord and
the parties herein described, and shall not be for the benefit of any insurer
nor any other third party.

18.  Severability. The invalidity of any provision of this Lease, as determined
by a court of competent jurisdiction, shall in no way affect the validity of any
other provision hereof.

19.  Interest on Past-Due Obligations. Any monetary payment due Landlord
hereunder, other than late charges, not received by Landlord within ten (10)
days following the date on which it was due, shall bear interest from the date
due at the prime rate charged by the largest state chartered bank in the state
in which the Premises are located plus four percent (4%) per annum, but not
exceeding the maximum rate allowed by law, in addition to the potential late
charge provided for in Paragraph 13.4.

20.  Time of Essence. Time is of the essence with respect to the performance of
all obligations to be performed or observed by the Parties under this Lease.

21.  Rent Defined. All monetary obligations of Tenant to Landlord under the
terms of this Lease are deemed to be rent.

22.  No Prior or other Agreements;. This Lease contains all agreements between
the Parties with respect to any matter mentioned herein, and no other prior or
contemporaneous agreement or understanding shall be effective.

23.  Notices.

     23.1  Notice Requirements.  All notices required or permitted by this Lease
shall be in writing and may be delivered in person (by hand or by messenger or
courier service) or may be sent by regular, certified or registered mail or U.S.
Postal Service Express Mail or any nationally recognized courier, with postage
prepaid, or by facsimile transmission during normal business hours, and shall be
deemed sufficiently given if served in a manner specified in this Paragraph 23.
The addresses noted adjacent to a Party's signature on this Lease shall be that
Party's address for delivery or mailing of notice purposes.  Either Party may by
written notice to the other specify a different address for notice purposes.  A
copy of all notices required or permitted to be given to Landlord hereunder
shall be concurrently transmitted to such party or parties at such addresses as
Landlord may from time to time hereafter designate by written notice to Tenant.

     23.2  Date of Notice. Any notice sent by registered or certified mail,
return receipt requested, shall be deemed given on the date of delivery shown on
the receipt card, or if no delivery date is shown, the postmark thereon.

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                                      -18-
<PAGE>

If sent by regular mail, the notice shall be deemed given five (5) business days
after the same is addressed as required herein and mailed with postage prepaid.
Notices delivered by United States Express Mail or overnight courier that
guarantees next day delivery shall be deemed given twenty-four (24) hours after
delivery of the same to the United States Postal Service or courier. If any
notice is transmitted by facsimile transmission or similar means, the same shall
be deemed served or delivered upon telephone or facsimile confirmation of
receipt of the transmission thereof, provided a copy is also delivered via
delivery or mail. If notice is received on a Saturday or a Sunday or a legal
holiday, it shall be deemed received on the next business day.

24.  Waivers. No waiver by Landlord of the Default or Breach of any term
covenant or condition hereof by Tenant, shall be deemed a waiver of any other
term, covenant or condition hereof, or of any subsequent Default or Breach by
Tenant of the same or any other term, covenant or condition hereof. Landlord's
consent to, or approval of, any such act shall not be deemed to render
unnecessary the obtaining of Landlord's consent to, or approval of, any
subsequent or similar act by Tenant, or be construed as the basis of an estoppel
to enforce the provision or provisions of this Lease requiring such consent.
Regardless of Landlord's knowledge of a Default or Breach at the time of
accepting rent, the acceptance of rent by Landlord shall not be a waiver of any
Default or Breach by Tenant of any provision hereof. Any payment given Landlord
by Tenant may be accepted by Landlord on account of moneys or damages due
Landlord, notwithstanding any qualifying statements or conditions made by Tenant
in connection therewith, which such statements and/or conditions shall be of no
force or effect whatsoever unless specifically agreed to in writing by Landlord
at or before the time of deposit of such payment.

25.  Recording. Either Landlord or Tenant shall, upon request of the other,
execute, acknowledge and deliver to the other a short form memorandum of this
Lease for recording purposes. The Party requesting recordation shall be
responsible for payment of any fees or taxes applicable thereto.

26.  No Right To Holdover. Tenant has no right to retain possession of the
Premises or any part thereof beyond the expiration or earlier termination of
this Lease. In the event that Tenant holds over in violation of this Paragraph
26 then the Base Rent payable from and after the time of the expiration or
earlier termination of this Lease shall be increased to two hundred percent
(200%) of the Base Rent applicable during the month immediately preceding such
expiration or earlier termination. Nothing contained herein shall be construed
as a consent by Landlord to any holding over by Tenant.

27.  Cumulative Remedies. No remedy or election hereunder shall be deemed
exclusive but shall, wherever possible, be cumulative with all other remedies at
law or in equity.

28.  Covenants and Conditions. All provisions of this Lease to be observed or
performed by Tenant are both covenants and conditions.

29.  Binding Effect; Choice of Law. This Lease shall be binding upon the
Parties, their personal representatives, successors and assigns and be governed
by the laws of the State in which the Premises are located. Any litigation
between the Parties hereto concerning this Lease shall be initiated in the
county in which the Premises are located.

30.  Subordination; Attornment; Non-Disturbance.

     30.1  Subordination.  This Lease and any Option granted hereby shall be
subject and subordinate to any ground lease, mortgage, deed of trust, or other
hypothecation or security device (collectively, "Security Device"), now or
hereafter placed by Landlord upon the real property of which the Premises are a
part, to any and all advances made on the security thereof, and to all renewals,
modifications, consolidations, replacements and extensions thereof.  Tenant
agrees that the Lenders holding any such Security Device shall have no duty,
liability or obligation to perform any of the obligations of Landlord under this
Lease prior to acquiring ownership of the Premises by reason of foreclosure of a
Security Device or otherwise, but that in the event of Landlord's default with
respect to any such obligation, Tenant will give any Lender whose name and
address have been furnished Tenant in writing for such purpose notice of
Landlord's default pursuant to Paragraph 13.5.  If any Lender shall elect to
have this Lease and/or any Option granted hereby superior to the lien of its
Security Device and shall give written notice thereof to Tenant, this Lease and
such Options shall be deemed prior to such Security Device, notwithstanding the
relative dates of the documentation or recordation thereof.

     30.2  Attornment.  Subject to the non-disturbance provisions of Paragraph
30.3, Tenant agrees to attorn to a Lender or any other party who acquires
ownership of the Premises by reason of a foreclosure of a Security Device, and
that in the event of such foreclosure, such new owner shall not: (i) be liable
for any act or omission of any prior Landlord or with respect to events
occurring prior to acquisition of ownership, (ii) be subject to any offsets or
defenses which Tenant might have against any prior Landlord, or (iii) be bound
by prepayment of more than one month's rent.

     30.3  Non-Disturbance.  Tenant's right of possession under this Lease,
including any options to extend the term hereof, will not be disturbed so long
as Tenant is not in Breach hereof and attorns to the record owner of the
Premises.

     30.4  Self-Executing. The agreements contained in this Paragraph 30 shall
be effective without the execution of any further documents; provided, however,
that upon written request from Landlord or a Lender in connection with a sale,
financing or refinancing of Premises, Tenant and Landlord shall execute such
further writings as may be reasonably required to separately document any such
subordination or non-subordination, attornment and/or non-disturbance agreement
as is provided for herein.

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                                      -19-
<PAGE>

31.  Attorneys' Fees.  If any Party brings an action or proceeding to enforce
the terms hereof or declare rights hereunder, the Prevailing Party (as hereafter
defined) in any such proceeding, action, or appeal thereon, shall be entitled to
reasonable attorneys' fees.  Such fees may be awarded in the same suit or
recovered in a separate suit, whether or not such action or proceeding is
pursued to decision or judgment.  The term "Prevailing Party" shall include,
without limitation, a Party who substantially obtains or defeats the relief
sought, as the case may be whether by compromise, settlement, judgment, or the
abandonment by the other Party of its claim or defense.  The attorneys' fee
award shall not be computed in accordance with any court fee schedule, but shall
be such as to full reimburse all attorneys fees reasonably incurred.  Landlord
shall be entitled to attorneys' fees, costs and expenses incurred in preparation
and service of notices of Default and consultations in connection therewith,
whether or not a legal action is subsequently commenced in connection with such
Default or resulting Breach.

32.  Landlord's Access; Showing Premises; Repairs.  Landlord and Landlord's
agents shall have the right to enter the Premises at any time, in the case of an
emergency, and otherwise at reasonable times during normal business hours after
giving not less than 48 hours written notice to Tenant for the purpose of
showing the same to prospective purchasers, lenders, or tenants, and make such
alterations, repairs, improvements or additions to the Premises or to the
Building, as Landlord may reasonably deem necessary.  Landlord may at any time
place on or about the Premises or Building any ordinary "For Sale" signs and
Landlord may at any time during the last one hundred eighty (180) days of the
term hereof place on or about the Premises any ordinary "For Lease" signs.  All
such activities of Landlord shall be without abatement of rent or liability to
Tenant.  Landlord shall use commercially reasonable efforts to minimize the
interference caused by any repairs and will diligently and expeditiously pursue
completion of such repairs.

33.  Auctions.  Tenant shall not conduct, nor permit to be conducted, either
voluntarily or involuntarily, any auction upon the Premises without first having
obtained Landlord's prior written consent.  Notwithstanding anything to the
contrary in this Lease, Landlord shall not be obligated to exercise any standard
of reasonableness in determining whether to grant such consent.

34.  Signs.  Tenant shall not place any sign upon the exterior of the Premises
or the Building, except that Tenant may, with Landlord's prior written consent,
install (but not on the roof) such signs as are reasonably required to advertise
Tenant's own business so long as such signs are in a location designated by
Landlord and comply with Applicable Requirements and the signage criteria
established for the Industrial Center by Landlord.  The installation of any sign
on the Premises by or for Tenant shall be subject to the provisions of Paragraph
7 (Maintenance, Repairs, Utility Installations, Trade Fixtures and Alterations).
Unless otherwise expressly agreed herein, Landlord reserves all rights to the
use of the roof of the Building and the right to install advertising signs on
the Building, including the roof, which do not unreasonably interfere with the
conduct of Tenant's business; Landlord shall be entitled to all revenues from
such advertising signs.  Landlord will provide, at its expense, at least one
monument sign at the entrance to the Industrial Center indicating the address of
the Building and listing the tenants in the Industrial Center.  Tenant shall
have the right to use the roof of the Building to install communication
equipment.  Any such communication equipment shall be installed by Tenant at its
expense at a location or locations approved by Landlord and shall be subject to
all Applicable Requirements affecting the Building and shall not disturb other
occupants of the industrial center.

35.  Termination; Merger. Unless specifically stated otherwise in writing by
Landlord, the voluntary or other surrender of this Lease by Tenant, the mutual
termination or cancellation hereof, or a termination hereof by Landlord for
Breach by Tenant, shall automatically terminate any sublease or lesser estate in
the Premises; provided, however, Landlord shall, in the event of any such
surrender, termination or cancellation, have the option to continue any one or
all of any existing subtenancies. Landlord's failure within ten (10) days of
following any such event to make a written election to the contrary by written
notice to the holder of any such lesser interest, shall constitute Landlord's
election to have such event constitute the termination of such interest.

36.  Consents.

     (a)   Except for Paragraph 33 (Auctions) or as otherwise provided herein,
wherever in this Lease the consent of a Party is required to an act by or for
the other Party, such consent shall not be unreasonably withheld or delayed.
Landlord's actual reasonable costs and expenses (including but not limited to
architects'. attorneys', engineers' and other consultants' fees) incurred in the
consideration of, or response to, a request by Tenant for any Landlord consent
pertaining to this Lease or the Premises, including but not limited to consents
to an assignment a subletting or the presence or use of a Hazardous Substance,
shall be paid by Tenant to Landlord upon receipt of an invoice and supporting
documentation therefor. Landlord's consent to any act, assignment of this Lease
or subletting of the Premises by Tenant shall not constitute an acknowledgment
that no Default or Breach by Tenant of this Lease exists, nor shall such consent
be deemed a waiver of any then existing Default or Breach, except as may be
otherwise specifically stated in writing by Landlord at the time of such
consent.

     (b)   All conditions to Landlord's consent authorized by this Lease are
acknowledged by Tenant as being reasonable. The failure to specify herein any
particular condition to Landlord's consent shall not preclude the impositions by
Landlord at the time of consent of such further or other conditions as are then
reasonable with reference to the particular matter for which consent is being
given.

37.  Guarantor.

     37.1  Form of Guaranty. If there are to be any Guarantors of this Lease per
Paragraph 1.11, the form of the guaranty to be executed by each such Guarantor
shall be in the form most recently published by the American Industrial Real
Estate Association, and each such Guarantor shall have the same obligations as
Tenant under this lease, including but not limited to the obligation to provide
the Tenancy Statement and information required in Paragraph 16.

                                                              Initials ____/____

                                      -20-
<PAGE>

     37.2      Additional Obligations of Guarantor. It shall constitute a
Default of the Tenant under this Lease if any such Guarantor fails or refuses,
upon reasonable request by Landlord to give: (a) evidence of the due execution
of the guaranty called for by this Lease, including the authority of the
Guarantor (and of the party signing on Guarantor's behalf) to obligate such
Guarantor on said guaranty, and resolution of its board of directors authorizing
the making of such guaranty, together with a certificate of incumbency showing
the signatures of the persons authorized to sign on its behalf, (b) current
financial statements of Guarantor as may from time to time be requested by
Landlord, (c) a Tenancy Statement, or (d) written confirmation that the guaranty
is still in effect.

38.  Quiet Possession.  Upon payment by Tenant of the rent for the Premises and
the performance of all of the covenants, conditions and provisions on Tenant's
part to be observed and performed under this Lease, Tenant shall have quiet
possession of the Premises for the entire term hereof subject to all of the
provisions of this Lease.

39.  Options.

     39.1      Definition.  As used in this Lease, the word "Option" has the
following meaning: (a) the right to extend the term of this Lease or to renew
this Lease or to extend or renew any lease that Tenant has on other property of
Landlord.

     39.2      Options Personal to Original Tenant.  Each Option granted to
Tenant in this Lease is personal to the original Tenant named in Paragraph 1.1
hereof, and cannot be voluntarily or involuntarily assigned or exercised by any
person or entity other than said original Tenant while the original Tenant is in
full and actual possession of the Premises and without the intention of
thereafter assigning or subletting. The Options, if any, herein granted to
Tenant are not assignable, either as a part of an assignment of this Lease or
separately or apart therefrom, and no Option may be separated from this Lease in
any manner, by reservation or otherwise.

     39.3      Multiple Options.  In the event that Tenant has any multiple
Options to extend or renew this Lease, a later option cannot be exercised unless
the prior Options to extend or renew this Lease have been validly exercised.

     39.4      Effect of Default on Options.

               (a)  Tenant shall have no right to exercise an Option,
notwithstanding any provision in the grant of Option to the contrary: (i) during
the period commencing with the giving of any notice of Default under Paragraph
13.1 and continuing until the noticed Default is cured, or (ii) during the
period of time any monetary obligation due Landlord from Tenant is unpaid
(without regard to whether notice thereof is given Tenant), or (iii) during the
time Tenant is in Breach of this Lease, or (iv) in the event that Landlord has
given to Tenant three (3) or more notices of separate Defaults under Paragraph
13.1 during the twelve (12) month period immediately preceding the exercise of
the Option, whether or not the Defaults are cured.

               (b)  The period of time within which an Option may be exercised
shall not be extended or enlarged by reason of Tenant's inability to exercise an
Option because of the provisions of Paragraph 39.4(a)

               (c)  All rights of Tenant under the provisions of an Option shall
terminate and be of no further force or effect, notwithstanding Tenant's due and
timely exercise of the Option, if, after such exercise and during the term of
this Lease, (i) Tenant fails to pay to Landlord a monetary obligation of Tenant
for a period of thirty (30) days after such obligation becomes due, or (ii)
Landlord gives to Tenant three (3) or more notices of separate Defaults under
Paragraph 13.1 during any twelve (12) month period, whether or not the Defaults
are cured, or (iii) if Tenant commits a Breach of this Lease and fails to cure
such Breach within the time permitted by the Lease.

40.  Rules and Regulations.  Tenant agrees that it will abide by, and keep and
observe all reasonable rules and regulations ("Rules and Regulations") which
Landlord may make from time to time for the management, safety, care, and
cleanliness of the grounds, the parking and unloading of vehicles and the
preservation of good order, as well as for the convenience of other occupants or
tenants of the Building and the Industrial Center and their invitees.  The Rules
and Regulations shall not be deemed to amend the terms and conditions of this
Lease.  In case of conflict between this Lease and the Rules and Regulations,
the Lease shall prevail.

41.  Security Measures.  Tenant hereby acknowledges that the rental payable to
Landlord hereunder does not include the cost of guard service or other security
measures, and that Landlord shall have no obligation whatsoever to provide same.
Tenant assumes all responsibility for the protection of the Premises, Tenant,
its agents and invitees and their property from the acts of third parties.

42.  Reservations.  Landlord reserves the right, from time to time, to grant,
without the consent or joinder of Tenant, such easements, rights of way, utility
raceways, and dedications that Landlord deems necessary, and to cause the
recordation of parcel maps and restrictions, so long as such easements, rights
of way, utility raceways, dedications, maps and restrictions do not reasonably
interfere with the use of the Premises by Tenant.  Tenant agrees to sign any
documents reasonably requested by Landlord to effectuate any such easement
rights, dedication, map or restrictions.

43.  Performance Under Protest.  If at any time a dispute shall arise as to any
amount or sum of money to be paid by one Party to the other under the provisions
hereof, the Party against whom the obligation to pay the money is asserted shall
have the right to make payment "under protest" and such payment shall not be
regarded as a voluntary payment and there shall survive the right on the part of
said Party to institute suit for recovery of such sum.  If it shall be adjudged
that there was no legal obligation on the part of said Party to pay such sum or
any part thereof, said Party shall be entitled to recover such sum or so much
thereof as it was not legally required to pay under the provisions of

                                                                 Initials___/___

                                     --21--
<PAGE>

this Lease.

44.  Authority.  If either Party hereto is a corporation, trust, limited
liability company, or general or limited partnership, each individual executing
this Lease on behalf of such entity represents and warrants that he or she is
duly authorized to execute and deliver this Lease on it's behalf and that such
entity is duly authorized and existing and qualified to do business in
California and that such party has the full right and legal authority to enter
into this Lease.  If Tenant is a corporation, limited liability company,  trust
or partnership, Tenant shall, within thirty (30 days after request by Landlord,
deliver to Landlord evidence satisfactory to Landlord of such authority.

45.  Conflict.  Any conflict between the printed provisions of this Lease and
the typewritten or handwritten provisions shall be controlled by the typewritten
or handwritten provisions.

46.  Offer.  Preparation of this Lease by either Landlord or Tenant or
Landlord's agent or Tenant's agent and submission of same to Tenant or Landlord
shall not be deemed an offer to lease.  This Lease is not intended to be binding
until executed and delivered by all Parties hereto.

47.  Amendments.  This Lease may be modified only in writing, signed by the
parties in interest at the time of the modification.  The Parties shall amend
this Lease from time to time to reflect any adjustments that are made to the
Base Rent or other rent payable under this Lease.  As long as they do not
materially change Tenant's rights or obligations hereunder (as determined by
Tenant in its reasonable discretion), Tenant agrees to make such reasonable non-
monetary modification to this Lease as may be reasonably required by an
institutional insurance company or pension plan Lender in connection with the
obtaining of normal financing or refinancing of the property of which the
Premises are a part.

48.  Multiple Parties.  Except as otherwise expressly provided herein, if more
than one person or entity is named herein as either Landlord or Tenant, the
obligations of such multiple parties shall be the joint and several
responsibility of all persons or entities named herein as such Landlord or
Tenant.

49.  Landlord's Work.

     (a) Landlord shall construct and deliver the Premises in "cold shell
condition" to Tenant ("Landlord's Work") on or before the target Early
Possession Date set forth in Paragraph 1.4 in order to allow Tenant to begin the
buildout of its tenant improvements. "Cold shell condition" means and includes:
(i) construction of the exterior concrete walls, exterior glass, exterior doors,
exterior finishes, concrete slab, roof structure and roof membrane; (ii) water,
fire line (no riser) and sewer stubbed into the Building; and (iii) power
brought to the transformer (with conduits stubbed into the Building but no
secondary service (main) or wires), telephone conduit included with pull wires,
no HVAC, no roof screens. Tenant shall take possession of the Premises as soon
as it is reasonably possible for Tenant's contractor to commence construction
but not before Landlord provides a waterproof shell. Landlord shall complete all
exterior items consisting of landscaping, paving, striping, walkways, ramps,
parking lot lights prior to the Commencement Date. Landlord's Work will be
completed at Landlord's sole cost and expense, in a good and workmanlike manner
and in compliance with all work plans approved by all applicable governmental
agencies. Landlord shall have no obligation to make any other improvements or to
perform any other work in the Premises except as otherwise expressly set forth
in the Lease. Landlord shall construct the Building in accordance with the
architectural plans prepared by DES dated June 1, 2000 ("Landlord's Plans"),
which are hereby deemed approved by Tenant. Landlord shall not materially modify
or deviate from Landlord's Plans without the written consent of Tenant. It shall
be reasonable for Tenant to reject any change to Landlord's Plans which modifies
the usable area of the Premises or increases the scope or cost of Tenant's Work.
Landlord's Work shall comply with all Applicable Requirements. Only new and
first-class materials shall be used in the construction of Landlord's Work.

     (b) Within ten (10) days after receipt of written notice that Landlord's
Work is complete, Tenant shall conduct a walk-through inspection of the Building
with Landlord and complete a punch-list of items needing additional work.
Landlord shall promptly complete such punch-list items.

     (c) Landlord shall provide Tenant with status reports regarding Landlord's
Work not less frequently than every thirty days following the date of execution
of the Lease.  Landlord shall use reasonable efforts to provide Tenant at least
thirty (30) days notice before the anticipated Early Possession Date.

50.  Tenant's Work.

     (a) With the exception of Landlord's Work, Tenant shall be responsible for
performing all other work required to prepare the Premises for Tenant's
occupancy pursuant to the Lease and as otherwise may be required to comply with
Applicable Requirements.  Tenant's Work shall be performed at Tenant's sole cost
and expense, subject to the Construction Allowance described below.  Tenant's
Work shall include, but not be limited to all drywall, insulation, wall
coverings, window coverings, floor coverings, restrooms, HVAC, fire sprinklers
distributed (must be semi recessed in dropped ceiling areas), lights, electric,
plumbing, doors, plans and permits.  The Building must be balanced with 100%
HVAC distributed (a minimum of 1 ton per every 350 sq. ft.) with either a VAV
system or multiple prepackaged gas/electric units (Carrier or Trane). Tenant
will install at least two tiled restroom cores with  separate men's and women's
rooms.

     (b) Landlord shall pay to Tenant a "Construction Allowance" equal to the
sum of Twenty Dollars ($20.00) multiplied by the usable area of the Premises.
Landlord's obligation to make such disbursement shall be subject to Landlord's
receipt of the following: (i) copies of paid invoices and unconditional lien
releases or waivers in connection with all such work, (ii) a certification by
Tenant that all such work has been performed in accordance with plans and
specifications approved by Landlord, and (iii) such other information that may
be reasonably requested by

                                                                 Initials___/___

                                     --22--
<PAGE>

Landlord or Landlord's lender. Upon substantial completion of Tenant's Work,
Tenant shall submit to Landlord a written notice indicating that Tenant has
completed Tenant's Work, which notice shall be accompanied by all of the
following (collectively, "Tenant's Completion Notice"): (i) copies of paid
invoices and unconditional lien waivers from Tenant's general contractor and all
subcontractors and material suppliers, showing that full payment has been
received for the construction of all aspects of Tenant's Work; (ii)
certification from Tenant that to the best of its knowledge all of Tenant's Work
has been completed substantially in accordance with the plans and specifications
therefor approved by Landlord and all local governmental and quasi-governmental
authorities with jurisdiction; and (iii) a copy of the building permit and
certificate of occupancy for Tenant's Work, showing that Tenant's Work has been
finally approved by the appropriate building inspector, plus any other evidence
reasonably required by Landlord indicating that all legal requirements for
Tenant's occupancy of the Premises have been satisfied. Landlord shall pay the
Construction Allowance to Tenant within fifteen (15) days after the date of
Landlord's receipt of Tenant's Completion Notice.

     (c) Tenant shall deliver to Landlord, for Landlord's review and approval,
complete plans, specifications and working drawings which show in detail the
intended design, construction and finishing of all portions of Tenant's Work, in
sufficient detail for construction ("Tenant's Final Plans").  The design,
materials and finish used for Tenant's Work shall equal in quality or better
than the design, materials and finish utilized by Tenant in the buildout of its
facilities located at 46430 Fremont Blvd., Fremont, CA 94538.  Within ten (10)
days after Landlord's receipt of Tenant's Final Plans, Landlord shall either
approve or disapprove Tenant's Final Plans.  Failure by Landlord to respond
within such ten (10) day period shall be conclusively deemed approval.  If
Landlord disapproves Tenant's Final Plans, then Landlord shall state in
reasonable detail the changes which Landlord requires to be made thereto, and
Tenant shall resubmit the plans until approved by Landlord.  Tenant's Work will
result in not less than eighty percent (80%) of the usable space in the Premises
being designed, built and used for a combination of offices, research and
development labs, production and related support facilities such as restrooms,
cafeterias, conference rooms and demo rooms (in such combination as shall be
determined by Tenant).

     (d) Tenant's Work shall comply with all Applicable Requirements.  Only new
and first-class materials shall be used in the construction of Tenant's Work.

     (e) McLarney Construction, Inc. is deemed approved by Landlord as Tenant's
general contractor.  If Tenant's selects another general contractor, such
contractor shall be subject to Landlord's prior written approval.

     (f) Promptly following the Early Possession Date, Landlord's approval of
Tenant's Final Plans and receipt of any required permits and other governmental
or regulatory approvals, Tenant shall commence performance of and diligently
pursue complete of Tenant's Work.  In the event that Tenant's Work is not
completed within nine (9) months after the Early Possession, due to causes
within Tenant's reasonable control, and as a result Landlord has been unable to
obtain permanent financing for the Industrial Center on terms comparable to the
permanent financing terms that would be available to Landlord for the Industrial
Center if Tenant's Work had been completed, Landlord shall have the right to
terminate this Lease for Default in accordance with the provisions of Paragraph
13.1 (c).

     (g) Upon completion of Tenant's Work, Tenant shall submit to Landlord one
(1) complete sets of as-built plans which shall be reproducible).

51.  Contingencies.

     (a) This lease is contingent upon Landlord completing the purchase of the
land and obtaining the necessary city approvals for the Industrial Center.
Notwithstanding that Landlord does not own the Industrial Center as of the date
of this Lease, Landlord and Tenant intend to be bound hereby, and may only
terminate and withdraw their obligations with respect to the Lease in accordance
with this Paragraph 51 or as otherwise specifically set forth in the Lease.

     (b) If Landlord does not obtain fee ownership of the Industrial Center on
or before August 1, 2000, then Tenant may terminate this Lease at any time
thereafter, but before the date such ownership by Landlord is obtained, by
giving Landlord written notice, in which event Landlord shall promptly return
all consideration previously paid by Tenant to Landlord.

     (c) In addition, if Landlord does not obtain all governmental approvals
necessary to permit the (i) construction of the Industrial Center and (ii) the
use of the Premises as set forth in Paragraph 6 (the "Building Permits") on or
before October 1, 2000 (the "Permit Deadline"), then either Landlord or Tenant
may terminate this Lease at any time thereafter, but before receipt of all
Building Permits, by giving the other party written notice, in which event
Landlord shall promptly return all consideration previously paid by Tenant to
Landlord.  Landlord shall use its commercially reasonable efforts to obtain the
Building Permits prior to the Permit Deadline.

     52. Option to Extend:  Subject to the terms and conditions set forth below,
Tenant may at its option extend the Terms of this Lease for (1) period of five
(5) years. Such period is called the "Renewal Term." The Renewal Term shall be
upon the same terms contained in this Lease, except that (i) Landlord shall have
no obligation to provide Tenant with any Tenant Improvement Allowance in
connection with the Renewal Term, (ii) the Base Rental during the Renewal Term
shall be calculated as set forth below, and (iii) any reference in the Lease to
the "Term" of the Lease shall be deemed to include the Renewal Term and apply
thereto, unless it is expressly provided otherwise. Tenant shall have no
additional extension options.

     (a) The Base Rent during the Renewal Term shall be at the then fair market
rate (defined hereinafter) for such space for a term commencing of the first day
of the Renewal Term.  "Market Rate" shall mean the then prevailing market rate
for a comparable term commencing on the first day of the Renewal Term for
tenants of comparable size and creditworthiness for comparable space in the
Building and other first class R&D/Office buildings

                                                                 Initials___/___

                                     --23--
<PAGE>

in the vicinity of the Industrial Center. In no event shall the rent be less
than the rent paid during the last year of the initial term and shall increase a
minimum of 4% per year.

     (a) To exercise any option, Tenant must deliver a binding written notice to
Landlord not sooner than ten (10) months nor later than six (6) months prior to
the expiration of the initial Term of this Lease.  Thereafter, the Market Rate
for the Renewal Term shall be calculated pursuant to Subsection A above and
Landlord shall inform Tenant of the Market Rate.  If the parties cannot agree on
the Market Rate, the parties shall each appoint a real estate broker or
appraiser (with at least 10 years experience in R&D leasing in Silicon Valley)
to determine the Market Rate. If the lower of the two is within 90% of the
higher of the two valuations, then the Market Rent shall be the average of the
two. If the lower of the two valuations is less than 90% of the higher
valuation, then the two brokers/appraisers originally selected by the parties
shall select a third broker/appraiser who shall determine the Market Rate, which
shall not be higher than the higher  of the two original valuations or lower
than the lower of the two original valuations. The determination of the third
broker/appraiser shall be binding on the parties. The market rent shall be
determined within 30 days of the date of Tenant's exercise of its option. In no
event shall the rent be less than the rent paid during the last year of the
initial term and shall increase by a minimum of 4% per year. If Tenant fails to
timely give its notice of exercise, Tenant will be deemed to have waived its
option to extend.

LANDLORD AND TENANT HAVE CAREFULLY READ AND REVIEWED THIS LEASE AND EACH TERM
AND PROVISION CONTAINED HEREIN, AND BY THE EXECUTION OF THIS LEASE SHOW THEIR
INFORMED AND VOLUNTARY CONSENT THERETO.  THE PARTIES HEREBY AGREE THAT, AT THE
TIME THIS LEASE IS EXECUTED, THE TERMS OF THIS LEASE ARE COMMERCIALLY REASONABLE
AND EFFECTUATE THE INTENT AND PURPOSE OF LANDLORD AND TENANT WITH RESPECT TO THE
PREMISES.

          THIS LEASE PREPARED FOR YOUR ATTORNEY'S REVIEW AND
          APPROVAL. FURTHER, EXPERTS SHOULD BE CONSULTED TO THE
          PRESENCE OF ASBESTOS, UNDERGROUND STORAGE TANKS OR
          HAZARDOUS SUBSTANCES. NO REPRESENTATION OR RECOMMENDATION
          IS MADE BY THE AMERICAN INDUSTRIAL REAL ESTATE ASSOCIATION
          OR BY THE REAL ESTATE BROKERS OR THEIR CONTRACTORS, AGENTS
          OR EMPLOYEES AS TO THE LEGAL SUFFICIENCY, LEGAL EFFECT, OR
          TAX CONSEQUENCES OF THIS LEASE OR THE TRANSACTION TO WHICH
          IT RELATES; THE PARTIES SHALL RELY SOLELY UPON THE ADVICE
          OF THEIR OWN COUNSEL AS TO THE LEGAL AND TAX CONSEQUENCES
          OF THIS LEASE. IF THE SUBJECT PROPERTY IS IN A STATE OTHER
          THAN CALIFORNIA, AN ATTORNEY FROM THE STATE WHERE THE
          PROPERTY IS LOCATED SHOULD BE CONSULTED.

The parties hereto have executed this Lease at the place and on the dates
specified above their respective signatures.

Executed at:  Fremont, CA                   Executed at:  Fremont CA
            ------------------------                    ------------------------

on:  June 30, 2000                          on:  June 30, 2000
   ---------------------------------           ---------------------------------

By Landlord:                                By Tenant:

Fremont Ventures LLC                        Wavesplitter Technologies, Inc.
by D&M Ventures LP
Its Managing Member
by David Dollinger Living Trust
by Dave Dollinger, Trustee

                                     --24--
<PAGE>
    /s/ Dave Dollinger                          /s/ Bruce Pollock
By: ________________________________        By: ________________________________
        Dave Dollinger
                                            Name: Bruce Pollock

                                            Title: Vice President & Chief
                                                   Financial Officer
                                                /s/ Bruce Pollock
                                            By: ________________________________

                                            Name: Bruce Pollock

                                            Title: Chief Financial Officer

Address: 306 Lorton Ave.                    Address:  4430 Fremont Blvd.
         Burlingame, CA 94010                         Fremont, Ca. 94538

Telephone:  (650) 344-6066                  Telephone:510-580-8800

Facsimile:  (650) 344-0659                  Facsimile: 510-580-8880

                                   Exhibit A
                        (Drawing of Industrial Center)

                                   Exhibit B
                Exclusions from Common Area Operating Expenses

Common Area Operating Expenses shall not include the following:

          i.    the cost of any items for which Landlord is reimbursed by
     insurance, condemnation, other tenants or otherwise;

          ii.   financing or refinancing costs, interest on debt or amortization
     payments on any mortgage, rental or other charges under any ground or
     underlying lease, any bad debt loss, rent loss or reserves for bad debts or
     rent loss;

          iii.  brokerage commissions for leases, sales or mortgages or other
     like expenses (including, without limitation, architectural, space planning
     or engineering services) incurred in leasing or procuring tenants;

          iv.   legal and auditing fees, other than reasonable legal and
     auditing fees necessarily incurred in connection with the normal
     maintenance and operation of the Common Areas (but excluding fees for
     sales, (re)financings, new leases, renewals and, disputes with tenants) or
     in connection with the preparation of statements required pursuant to
     escalation provisions of this Lease;

          v.    fines, penalties and interest;

          vi.   executive salaries above the grade of Building manager
     including, without limitation, executive managers, accountants,
     bookkeepers, receptionists, clerks, marketing representatives,
     administrative assistants, secretaries and brokers and Landlord's home
     office overhead;

          vii.  costs of (a) additions to the Building or Common Areas
     subsequent to the date of original construction, or (b) correcting defects
     in or inadequacy of design or construction of the Building or Common Areas,
     or (c) initial painting or decorating of any part of the Building or Common
     Areas;

          viii. the cost of any repairs, alterations, additions, changes,
     replacements and other items which are (a) pursuant to or as a result of
     condemnation;

          ix.   fees and expenses paid to affiliates of Landlord or any entity
     controlled by a person related to Landlord in excess of commercially
     reasonable and customary amounts;

          x.    dues to professional and lobbying organizations;

                                                                 Initials___/___

                                     --25--
<PAGE>

          xi.    expenses (e.g., costs of any judgment, settlement or
     arbitration award) relating to or resulting from the negligence or willful
     misconduct of Landlord, its agents or employees or the breach of this
     Lease;

          xii.   costs associated with the operation of the business of the
     partnership, corporation or owning entity and the cost of defending any
     lawsuits with any mortgagee (except as, and to the extent, the actions of
     Tenant may be an issue);

          xiii.  any funds or money given to other tenants in connection with
     the leasing of space in the Industrial Center;

          xiv.   costs of repairs or replacements incurred by reason of fire or
     other casualty or condemnation, except to the extent that the cost thereof
     is less than the "deductible" in force under Landlord's insurance policy to
     the extent such, deductible is not in excess of that generally in force in
     other office buildings similar to the Building and located in the county in
     which the Building is situated;

          xv.    costs for services, which costs are materially in excess of
     costs for services provided for tenants in office building similar to the
     Building and located in the county in which the Building is situated;

          xvi.   any compensation paid to clerks, attendants or other persons in
     commercial concessions operated by Landlord;

          xvii.  the cost of installing, operating, maintaining, and insuring
     any specialty facility, such as an observatory, broadcasting facilities,
     luncheon club, athletic or recreational club, cafeteria or dining facility;

          xviii. expenses allocable to any retail space of the Common Areas;

          xix.   additional rent or other charge under any lease (including any
     superior or ground lease) or sublease to, or assumed directly or indirectly
     by, Landlord;

          xx.    cost of electricity consumed in any area of the Industrial
     Center rented or available for rent to the extent such costs would not have
     been included had such space been occupied by another tenant;

          xxi.   costs that would duplicate costs theretofore included in Common
     Area Operating Expenses;

          xxii.  arbitration expenses unrelated to the maintenance, operation
     and security of the Common Areas and any other arbitration expenses
     incurred in connection with leases of space in the Industrial Center or
     with default or eviction proceedings against tenants or relating in any
     other way to tenant disputes;

          xxiii. unless caused solely by Tenant after the Early Possession
     Date, costs relating to, or in connection with, the removal containment,
     encapsulation, disposal, repair, monitoring, testing, venting, clean-up,
     remediation, or compliance with laws pertaining to (a) asbestos; or (b) any
     hazardous, toxic or regulated substance or gas;

          xxiv.  any funds or money given to charities;

          xxv.   any management fees in excess of 4% of the gross rent for the
     Premises (provided that such fees shall be no greater than the fees charged
     to the other tenants of the Industrial Center); and

          xxvi.  any sinking funds or similar items.

                                       2

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