Document:

Exhibit 4(u)

                               LICENCE AGREEMENT

THIS LICENCE AGREEMENT is made this 16th day of January, 2001.

BETWEEN

1st Silicon (Malaysia) Sdn Bhd (Company No. 456668-U), a company incorporated
and registered in Malaysia and having its registered office at 1, Silicon
Drive, Sama Jaya Free Industrial Zone, 93350 Kuching, Sarawak (hereinafter
referred to as "THE LICENSOR" which expression where the context so admits
shall include its successors, assigns and representatives) of the one part

AND

ASE Electronics (M) Sdn Bhd (No. 212592-H), a company incorporated and
registered in Malaysia and having its registered office at Plot 20, Phase 4,
Bayan Lepas Free Industrial Zone, 11900 Penang (hereinafter referred to as "THE
LICENSEE" which expression where the context so admits shall include its
successors, assigns and representatives) of the other part.

WHEREAS THE LICENSOR is the registered owner of all that parcel of land
including all the Wafer Fab Plant and the appurtenances thereof situate at the
Muara Tebas Land District and known as Lot Number 1270, Block 12 with the
business address registered as 1, Silicon Drive, Sama Jaya Free Industrial
Zone, 93350 Kuching, Sarawak, Malaysia ("the said land").

WHEREAS THE LICENSOR is desirous of permitting THE LICENSEE to occupy all that
space on the test floor area within the Building known as the Wafer Fabrication
Plant situate on the said land as more clearly outlined in red in the attached
Plan, the location and the area to be occupied ("the Test Floor Area") are more
particularly provided in Schedule III annexed hereto for the purpose of the
Wafer test/sort activities upon the terms and conditions as set out below.

NOW IT IS AGREED AS FOLLOWS:

1.   THE LICENSEE shall have full right under the license to enter upon the
     Test Floor Area and occupy the Work Station(s) built within the Test Floor
     Area for the purpose of the Wafer test/sort activities. The term "Work
     Station(s)" means a combination of one tester and one prober or one tester
     and a number of probers including any updated, improved or modified
     version of such tester or prober(s) thereof to be located in an area as
     defined in Schedule l hereof.

2.   THE LICENSEE shall pay to THE LICENSOR for the occupation of the Work
     Station(s) a fee in the sum as set out in Schedule II hereto payable on
     the effective date of this agreement on a pro-rated basis in the event
     that the move-in period is less than one month and thereafter within the
     first week or every month.

3.   THE TERM of the licence shall be for a period of two (2) years commencing
     on the date of the equipment move in ("the effective date") but if after
     the expiry of the term THE LICENSEE continues to use the Work Station(s)
     without objection by THE LICENSOR then THE LICENSOR shall be subject to
     fourteen (14) days notice of termination by either party at any time but
     otherwise upon the terms of this agreement. The term "equipment" means all
     or any equipment use or required for the purpose of the Wafer test/sort
     activities.

4.0  THE LICENSOR shall not during the continuance of this Licence and without
     the written consent of THE LICENSEE grant to any person other than THE
     LICENSEE any licence to occupy the Work Station(s) designated to THE
     LICENSEE for any purpose.

4.1  THE LICENSOR shall permit THE LICENSEE to remove and take away from the
     Work Station(s) all fixtures and fittings which belong to THE LICENSEE at
     THE LICENSEE's costs and expenses and without damage to the Work
     Station(s) or the Test Floor Area.

<PAGE>

5.0  THE LICENSEE is aware and acknowledges that there will be other occupiers
     within the test floor area and agrees that it shall not in any way impede
     or obstruct the rights of the other occupiers of the test floor area or in
     any way cause a nuisance to the other occupiers of the test floor area.

     Similarly the LICENSOR will not allow its employees or its agents or its
     visitors to impede or obstruct the rights of the Licensee or in airy way
     cause a nuisance to the Licensee at the Teat Floor Area.

5.1  THE LICENSEE shall during the continuance of this licence maintain the
     Work Station(s) and all fixtures and fittings (if any) in it in tenantable
     condition.

5.2  THE LICENSEE shall not permit or suffer any of THE LICENSOR'S articles to
     be removed from the Work Station(s), Test Floor Area or Building without
     the written consent of THE LICENSOR.

5.3  THE LICENSEE shall use the Work Station(s) for the purpose as stated
     herein only.

5.4  THE LICENSEE shall insure and keep insured through out the continuance of
     this agreement its equipment, spares and hardware from loss or damage
     against fire, explosion and theft. Such premiums will be borne by THE
     LICENSEE.

6.   During the term of this Agreement, THIS LICENCE may be terminated:-

6.1  By either party by giving six (6)months written notice;

6.2  By either party of not less than one (1) month written notice if the other
     party fails to perform or observe any of the terms or conditions of this
     agreement to be performed and observed by the respective party;

6.3  By either party without prior notice if:

6.3.1  either party becomes bankrupt or has a receiving order made against it or
       enters into any composition or arrangement with creditors generally;

6.3.2  either party enters into liquidation whether compulsory or voluntary
       other than for a purpose of reconstruction.;

6.3.3. THE LICENSEE suffers any execution to be levied upon its goods in the
       Work Station(s).

7.   THE LICENSEE shall be responsible for the facilitization and
     defacilitization of the equipment from the distribution board to the Work
     Station at its own costs. THE LICENSOR will assist THE LICENSEE in looking
     for a Sub-Contractor to do the said facilitization and defacilitization
     and to pay up-front fees to the said Sub- Contractor. THE LICENSEE shall
     reimburse any or all fees charges including service tax incurred by THE
     LICENSOR in connection with the above work. The facilitization and
     defacilitization of the equipment from the main or facility equipment to
     the distribution board shall be the responsibility of THE LICENSOR at no
     costs to THE LICENSEE.

8.   THE LICENSOR will supply CDA, power-Vac, water, plant vacuum to the Work
     Station(s) or for use of THE LICENSEE and in common with THE LICENSOR THE
     LICENSEE will be entitle to use air-conditioning, electricity, lighting
     and collection of commercial waste deposited by THE LICENSEE at the
     storage facility designated by THE LICENSOR at no costs to THE LICENSEE.
     However, THE LICENSEE shall bear all telephone bills incurred by THE
     LICENSEE including any costs of repair in respect of the above services
     and items provided by THE LICENSOR, which are directly caused by THE
     LICENSEE during the term of this Agreement or licence.

9.   THE LICENSOR will provide a maintenance room of approximately 300 square
     feet at the Test Floor Area to THE LICENSEE for storage and maintenance of
     equipment tool in connection with the wafer sort activities.

10.  This Agreement binds the assigns and successors in title of each of the
     parties hereto.

<PAGE>

11.  The law applicable in any action arising out of this Agreement shall be
     the governing law of Malaysia applicable in Sarawak and the parties hereto
     submit themselves to the jurisdiction of the Malaysian Courts.

12.  THE LICENSEE shall during the term of this agreement display clearly on
     THE LICENSEE's vehicle the relevant security passes to be issued to THE
     LICENSEE by THE LICENSOR when entering THE LICENSOR'S premises and THE
     LICENSEE shall strictly abide to all the rules and regulations of THE
     LICENSOR.

13.  The LICENSEE shall be entitled to the use and enjoyment of the common
     areas, open spaces, staircases, lifts, washroom, lavatories, cafeteria,
     pantry, changing rooms and car parking areas save for those areas
     designated by the Licensee as restricted areas.

14.  NOTICES GIVEN under or in any way connected with this Agreement or the
     licence hereby created shall be in writing and be sufficiently served on
     THE LICENSEE if forwarded to THE LICENSEE by registered post to the
     address of THE LICENSEE herein before stated and shall be sufficiently
     served on THE LICENSOR if sent to THE LICENSOR at its above mentioned
     address by registered post and shall be deemed to be given at the time
     when in due course of post it would be delivered at the address to which
     it is sent to.

IN WITNESS WHEREOF the parties hereto have hereunto set their hands the day and
year first hereinbefore written.

SIGNED by                                   )
for and on behalf of                        )
1st SILICON (MALAYSIA) SDN. BHD.            )        /s/ Claudio G. Loddo
(456668-U) (THE LICENSOR)                   )
in the presence of:-                        )

SIGNED by                                   )ASE ELECTRONICS (M) SDN. BHD.
for and on behalf of                        )
ASE Electronics (M) Sdn Bhd                 )        /s/ David Hsiang
(212592-H) (THE LICENSEE)                   )------------------------------
in the presence of:-                        )Authorized Signatories

<PAGE>

                                   SCHEDULE I

Item                      Particulars
-------------------------------------------------------------------------------
Location of the Work      Test Floor area of approximately 3,000 square feet,
Station(s)                Ground Floor, Wafer Fab Plant, situate at 1 Silicon
                          Drive, Sama Jaya Free Industrial Zone, 93350 Kuching

                                  SCHEDULE II

Item           Workstation A   Workstation B   Workstation C   Workstation D
Tester         1               1               1               1
Prober         1               2               3               4
Rental (USD)   2500.00         3850.00         5260.00         6680.00Exhibit 4(w)

                               SERVICE AGREEMENT

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

                           ASE Test Inc. ("ASE Test")
                           (a Taiwan Corporation)

DATE:    July 1, 2000

ASE Test Inc. ("ASE Test") hereby retains ASE US 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 ASE Test 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 ASE Test and Customers re price, delivery and other key
     terms of the sales contract as ASE Test may from time to time specify in
     writing, and;

(c)  To monitor sales contract performance by the Customers, including
     acceptance of delivery, payments, 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, ASE Test will monthly compensate ASE US as follows:

(a)  15% of ASE US's monthly incurred services associated cost and expenses
     (excluding bonus) plus 10%.

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

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

3.   Compensation from ASE US

ASE US agrees to pay a reasonable portion of ASE Test employee's traveling
expenses incurred in the United States or Europe, when the trip is deemed
necessary by ASE Test to assist ASE US in providing its services hereunder.

4.   Term of Agreement

This Agreement is effective from July 1, 2000 and shall expire on June 30,
2001, unless earlier terminated by (i) mutual agreement or (ii) ASE Test 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 ASE Test and the
     Customers.

<PAGE>

     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 ASE Test, as agent or
     otherwise, or to bind ASE Test 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 ASE Test 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.

(d)  ASE US shall use ASE Test trademark only as ASE Test 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 the 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 ASE Test, ASE US shall not assign or
transfer any of its rights or obligations hereunder to any other person.

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:                                     ASE Test Inc.:
Address:                                    Address:
2880 Zanker Road, Suite 106,                10 West 5th St., Nantze EPZ,
San Jose, CA  95134, USA                    Kaohsiung, Taiwan, R.O.C.

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 ASE Test 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: General Manager

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