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EXHIBIT 10.12 (PACTRUST LOGO)
    
    2000 Wyatt Drive, Suite 7
Santa Clara, California 95054 
408/588-4630  Facsimile: 408/588-4636
 June 10, 2004 Arthur Nguyen, Corporate Controller
Tvia, Inc.
4001 Burton Drive
Santa Clara, CA 95054 Dear Mr. Nguyen: Re: Facility No. mp 10 tviainc/COR 4001 Burton Drive, Santa Clara, California (the Premises)
 Enclosed please find one
fully executed 4th Amendment to Lease Agreement for the above
referenced Premises. Please keep this copy for your records. If you have questions, please
feel free to call me at (408) 588-4630. Very truly yours,PACIFIC REALTY ASSOCIATES, L.P./s/ Gregory T. CantrellGregory T. CantrellRegional Property Manager
 Encl.




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FOURTH AMENDMENT TO LEASE THIS FOURTH
AMENDMENT TO LEASE (this Amendment) is made and entered
into this 7th day of June, 2004, by and between KOLL/INTEREAL BAY
AREA, a California general partnership (Landlord), and TVIA, Inc., a Delaware corporation fka
IGS Technologies, Inc., a California corporation (Tenant). RECITALS This Amendment is made with reference to the following facts, intentions and objectives: A. Landlord and
InteGraphics System, Inc., a California corporation and Tenants
predecessor-in-interest, entered into that certain Mission Park Multi-Tenant Single-Building
Modified-Net Lease dated October 27, 1995 (as amended by (i) that certain First Amendment to
Lease Agreement between Landlord and Tenant dated January 15, 1999 (ii) that certain Second
Amendment to Lease Agreement between Landlord and Tenant dated May 6, 1999 (iii) that
certain Third Amendment between Landlord and Tenant dated June 27, 2003 the Lease) for
certain real property situated in the City of Santa Clara, County of Santa Clara, State of
California, which real property is commonly known as 4001 Burton Drive, Santa Clara,
California, and is more particularly described and defined in said
Lease as the Premises. B. Landlord and Tenant
have agreed to further extend the term of the Lease, Landlord
and Tenant acknowledge that the net Monthly Rent payable under the Lease by Tenant as of the
commencement of the extended term of the Lease is based upon utilization by Tenant of that
portion of the Premises comprising approximately ten thousand
(10,000) square feet and more
particularly shown in Exhibit 1 attached hereto and incorporated herein of the Premises (the
In-Use Portion). C. Accordingly, Landlord and Tenant have agreed to the modifications to the Lease as
set forth below. NOW, THEREFORE, in
consideration of the foregoing, the receipt of which is acknowledged, and
of the mutual agreement of the parties hereto to the terms and conditions hereinafter contained,
Landlord and Tenant agree as follows: 1. Effective Date; Capitalized Terms. Except as may be specifically set forth herein, the provisions of this Amendment shall be
effective as of the date Landlord executes this Amendment as shown next to Landlords
signature
below (the Effective Date). Capitalized terms used in this Amendment and not defined shall
be
deemed to have the same meaning ascribed to them in the Lease. 2. Further Extension of Term of Lease; Net Monthly Rent. 2.1.
Additional Period. The term of the Lease currently expires on July 31, 2004, The
existing term of the Lease is hereby further extended for an additional twelve (12) months
commencing on August 1, 2004 and continuing through and
including July 31, 2005 (the
Additional Period). All references in the Lease and in
this Amendment to Term shall mean
the existing term of the Lease as extended through the Additional
Period. 2.2. Net Monthly Rent. Net Monthly Rent for each and every month of the Additional
Period shall he Eight Thousand Eight Hundred Seventy Five and no/100 Dollars ($8,875.00) per
month. 3. As Is. Tenant shall continue to
lease the Premises for the Additional Period in its AS IS condition
on the date of the commencement of the Additional Period, Landlord shall have no obligation to
make any improvements, alterations, modifications, repairs or refurbishments of 2




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any nature
whatsoever to the Premises as a condition to or in connection with Tenants lease of the
Premises for the Additional Period. 4. Brokers. Landlord and Tenant acknowledge and agree that no real estate brokers were involved in
the negotiation of this Amendment. Landlord and Tenant (each being hereinafter referred to in
this Section 4 as the Indemnitor) each agrees to defend with counsel reasonably
satisfactory to the other party and indemnify the other party from and against all liability,
claims, actions, causes of action, suits, demands, damages, or costs of any kind arising
from or connected with any brokers or finders fee or commission or charge claimed to be due
any person arising from the Indemnitors conduct with respect to said transaction, other than
the commission provided for above. This obligation shall survive and be enforceable following
the expiration or earlier termination of the Lease, 5. Ratification. Except as otherwise provided herein, the Lease is hereby ratified and affirmed and
remains in full force and effect. 6. Successors and Assigns. This Amendment shall be binding upon and shall inure to the benefit of the parties
hereto, their successors, transferees, heirs, personal representatives and assigns. IN WITNESS WHEREOF, the parties hereto have executed this Amendment on the respective
dates set opposite their signatures below, but this Amendment on behalf of such party shall
be deemed to have been dated as of the date first above written, TENANT:
    
    LANDLORD:TVIA, INC.,
    
    KOLL/INTEREAL BAY AREA,a Delaware corporation
    
    a California general partnershipBy:
    
    Washcop Limited Partnership,a Delaware limited partnership,its:
    
    General Partner
 By:
    
    Pacific Resources Associates LLC,a Delaware limited liability company,Its:
    
    General Partner
 By:
    
    /s/ Arthur Nguyen
    
    By:
    
    /s/ Shari L. ReedName:
    
    ARTHUR NGUYEN
    
    Name:
    
    Shari L. ReedIts:
    
    CFO
    
    Its:
    
    Vice President
 3




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EXHIBIT 1 IN-USE PORTION (FLOOR PLAN MAP) 4