Exhibit 4(j)


                               SERVICE AGREEMENT

PARTIES:  ASE (U.S.) INC. ("ASE US")
          (a California corporation)

          ASE Test Inc. ("ASET")
          (a Taiwan corporation)

Date: August 1, 2003

ASET hereby retains ASEUS to be its Service Agent to provide after sales
service and sales support ("Services") to its Europe and North America
customers ("Customers") for present and future products and services as
specified by ASET as follows

1.   Service to rendered

     (a)  To facilitate market information collection, Customer and business
          identification, and Customer inquiry dissemination, and;

     (b)  To liaise with ASET and Customers regarding price, delivery and other
          key terms of the sales contract as ASET may from time to time specify
          in writing, and;

     (c)  To monitor sales contract performance by the Customers, including
          acceptance of delivery, payment, etc., and;

     (d)  To provide after sales services including problem solving, capacity
          planning coordination and other items as may be necessary.

2.   Compensation to ASE US

     For services hereunder, ASET will monthly compensate ASE US as follows:

     (a)  18% of ASE US's monthly incurred services associated cost and
          expenses (excluding bonus) plus 5%, or USD 340,200, whichever is
          lower.

     (b)  Upon payment request, ASE US is to submit monthly expense report
          certified by it's Financial Manager for accuracy, and;

     (c)  The compensation agreement is valid for one year and is subject to
          quarterly revision accepted by both parties.

     (d)  Compensation hereunder shall be net of any and all taxes required to
          be paid under applicable law.

3.   Compensation from ASE US

     ASE US agrees to pay a reasonable portion of ASET employee's traveling


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     expenses incurred in the United States or Europe, when the trip is deemed
     necessary by ASET to assist ASE US in providing its services hereunder.

4.   Term of Agreement

     This Agreement is effective from August 1, 2003 and shall expire on July
     31, 2004, unless earlier terminated by (i) mutual agreement or (ii) ASET
     on at least 30 days' prior written notice with or without causes.

5.   Representations and Covenants

     (a)  ASE US agrees to perform its obligations hereunder to the extent
          permissible by law and the sales contracts between ASET and the
          Customers.

     ASE US will not enter into any contract or agreement, nor engage in any
     activities, that would result in a conflict with ASE US's duties under
     this Agreement.

     With the terms of this agreement, ASE US shall not have the authority to
     make any commitments whatsoever on behalf of ASET, as agent or otherwise,
     or to bind ASET in any respect.

     (b)  Each party will provide to the other on a regular basis such
          information as may be required to enable the other party to be
          assured of compliance with this Agreement.

     (c)  Unless required by laws, all confidential information received or
          learned by ASE US relating to ASET or its business and products shall
          be kept in confidence by ASE US and neither used by ASE US nor
          disclosed to others for any purpose inconsistent with this Agreement.
          ASE US shall use ASET trademark only, as ASET may authorize from time
          to time, and ASE US shall not claim any proprietary right to or
          interest in such trademarks.

6.   Miscellaneous

     This Agreement shall be governed by the laws of Republic of China ("ROC").
     In case of any disputes arising from or in connection with this Agreement,
     the parties hereto consent to submit to the non-exclusive jurisdiction of
     the Taipei District Court.

     Without the prior written consent of ASET, ASE US shall not assign or
     transfer any of its rights or obligations hereunder to any other person.


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     This Agreement can be amended or modified only in writing signed by the
     parties hereto. Any communication or notice made hereunder shall be in
     writing and sent by way of (i) hand delivery, (ii) postage prepaid
     registered air mail, or (iii) facsimile to the address as follows:

     ASE US:                                  ASET:
     Address:                                 Address:
     3590 Peterson Way,                       No. 10 West 5th Street, Nantze
     Santa Clara, CA 95054, USA               Export Processing Zone,
                                              Kaohsiung, Taiwan

     Telefax No: 408-432-0440                 Telefax No: 886-7-363-6663

The notice or communication shall become effective (i) upon delivery if sent by
hand delivery, (ii) upon the dispatch if sent by facsimile and confirmed by
writing and (iii) upon the fifth days later than the post date if sent by air
mail.

This Agreement shall in no event be construed to establish a sales agency
relationship between ASET and ASE US.

IN WITNESS WHEREOF, the parties hereto hereby have duly executed and delivered
this Agreement as of the date and year first written above.



ASE Test Inc.                                 ASE US


By  /s/ Raymond Lo                            By  /s/ Y.C. Hsu
   ---------------------------------              -----------------------------
Name: Raymond Lo                              Name: Y.C. Hsu
Title: President                              Title: Director