Exhibit 4(j)


                              Land Lease Agreement

                                                     (89)-Nan-Er-Jian-Zi-No. 012


This Lease Agreement is made and entered into by and between the Lessor, Nantze
Export Processing Zone Administration of Ministry of Economic Affairs
(hereinafter referred to as "Party A") and Lessee ASE Test Inc. (hereinafter
referred to as "Party B").

Whereas, it is mutually agreed between the parties that a parcel of public land
inside the Nantze Export Processing Zone ("Zone") managed by Party A is to be
leased to Party B on the terms and conditions as follows:

1.   Land markings, rent and fees:

<TABLE>
-------------------------------------------------------------------------------------------------------------------
                                                                                              Public
                                                                                             facility
                                                District   Leased                           construction
                  Markings of Land               of the     Area    rent/m2    rent/month     fee/month       Note
  No.                                            Zone       (m2)     (NTD)      (NTD)          (NTD)
-------------------------------------------------------------------------------------------------------------------
         District  Section   Sub-Section   Land
                                           Lot.
                                           No.
-------------------------------------------------------------------------------------------------------------------
<S>         <C>      <C>         <C>        <C>    <C>       <C>        <C>        <C>          <C>         <C>
                             Sub-Section    721     5        4391     11.50      50,496          0        Approved
                                  2                                                                       To lease
                                                                                                          By the
                                                                                                          letter of
                                                                                                          Party A
                                                                                                          (Gin-Jya-
                                                                                                          Chu-89-2-
                                                                                                          Jian-Zi-
                                                                                                          607 of
                                                                                                          February
                                                                                                          8, 2000)
  CL050    Nanzih   Heping
           District Section


-------------------------------------------------------------------------------------------------------------------
                        Total                                4391     11.50      50,496          0
-------------------------------------------------------------------------------------------------------------------
</TABLE>


<PAGE>


2.   The term of this lease shall start from April 16, 2000 and end on April 15,
     2010.

3.   The use of the leased land shall be limited to construction of office,
     plant, warehouse or work site by the enterprises which have been approved
     to operate in the Zone or establishment of a branch office by the competent
     authority.

4.   During the term of this lease, Party B shall, on its own initiative, apply
     for return of the leased land when the whole or party of it is no longer
     desired. Party B shall not sub-let or loan part or whole of the land to a
     third party.

5.   In the event that Party B applies to lease this parcel of land for the
     construction of plant or other buildings on its own initiative, the
     distance between the plant or building and the adjacent land leased by
     other persons shall be three meters, the distance between the plant or
     building and the main route of transportation shall be six meters, the
     distance between the plant or building and the internal or branch route of
     transportation shall be five meters, the distance between the plant or
     building and the divided route of transportation shall be four meters. The
     space saved from the aforesaid distance shall be reserved as a "set back
     area". Party B shall be responsible for the costs and expenses incurred
     from the arrangement and virescence of the set back area.

6.   In the event that Party B applies to lease this parcel of land for the
     construction of plant or other buildings, the principal construction should
     be a building of two or more stories. The plane area of the construction
     shall not be less than 50% or exceed 70% of the total leased area. In
     addition, the construction of the plant or building shall follow the
     principles as set forth below:

     a.   the set back area around the leased land shall be reserved as a vacant
          lot for the purpose of fireproofing, lighting, evacuation and
          virescence.

     b.   20% of the net area out of the leased land after deducting the set
          back area shall also be reserved as a vacant lot.

7.   Party B shall pay Party A NT$50,496 as specified under Article 1 of this
     Agreement before the fifth date of each month to the national treasury
     agent appointed by Party A. In the event of arrears in payment for the
     rent, Party B agrees to pay, in addition to the rent, fines for penalty as
     calculated per the formulae below:


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<PAGE>


     a.   an additional 5% of the annual rental is added for arrears in payment
          over one month and less than two months;

     b.   an additional 10% of the annual rental is added for arrears in payment
          over two months and less than three months; and

     c.   an additional 15% of the annual rental is added for arrears in payment
          over three months and less than four months;

     in the event that arrears in payment for the rental, fees and penalty of
     fines have exceeded four months, in addition to arrear, Party A may also
     terminate this Agreement.

8.   During the term of this lease Agreement, should the government announce any
     land value adjustment, Party B agrees to adjust the rent accordingly from
     the 1st date of following month after the adjusted land value is announced.

9.   In the event that Party B applies to lease this parcel of land for the
     construction of plant or other buildings, Party B shall commence the
     fabrication within three months after the execution of this Agreement and
     shall complete the construction on schedule. Party A may immediately
     terminate this Agreement and recall the leased property should it occur
     that Party B has not commenced the fabrication after the deadline or, where
     the delay of the construction is agreed by Party A, Party B has failed to
     commence the fabrication or complete the construction on schedule. In which
     case, the rent and the public facility construction fee already paid by
     Party B shall not be refunded, and Party A may have the right to dispose at
     its discretion the uncompleted structure on the leased property or demand
     Party B to remove the uncompleted structure according to the applicable
     laws, and Party B shall not raise any objection.

10.  When it is necessary that Party B must excavate the road, the drainage
     system, the piping lines or any other public facilities inside the Zone for
     the construction of the plant or building, Party B must obtain prior
     approval from Party A and shall pay security deposit to Party A. Upon
     completion of the fabrication, the site must be resumed to its original
     condition by Party B. The security deposit will be refunded to Party B
     without interest accrued. However, Party A may forfeit the security deposit
     if Party B is in breach of its liabilities provided in this Article.

11.  Party A may notify Party B to terminate this Agreement should any of the
     following events occur:

     a.   Party B has breached this Agreement in the use of the leased property;


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<PAGE>


     b.   the building owned by Party B is purchased or expropriated according
          to Article 12 of the Establishment and Management of the Export
          Processing Zone Act;

     c.   Party B is in arrears of rental payment and fees amounting to four
          months.

     d.   the Agreement is terminated in compliance with the Civil Code or Land
          Act.

12.  In the event that the Agreement is terminated according to the preceding
     Article, Party B shall return the leased land immediately. All structures
     on the leased land that belong to Party B shall, within two years, be
     resold to the qualified assignee that is located in the Zone as approved by
     Party A or its sub-department. In addition, Party B shall effect the
     payment according to Article 7 of the Agreement within the two-year period.
     In the event that Party B fails to comply with this Article 12 or fails to
     complete required procedure exceeding two years, Party A may purchase all
     the equipment and facilities inside or outside the building on the leased
     land according to the applicable laws, and Party B shall not raise any
     objection.

13.  In the event that Party B wishes to renew this Agreement upon expiration,
     Party B shall file an application with Party A three months prior to the
     expiry of this Agreement. Should Party B fail to file for renewing this
     Agreement, Party B shall surrender the land upon expiry of this Agreement.
     All structures on the leased land that belong to Party B shall, within six
     months, be resold to the qualified assignee that is located in the Zone as
     approved by Party A or its sub-department. In addition, Party B shall
     effect the payment according to Article 7 of this Agreement within the
     six-month period. In the event that Party B fails to comply with this
     Article 13 or fails to complete required procedure exceeding six months,
     Party A may purchase all the equipment and facilities inside or outside the
     building on the leased land according to the applicable laws, and Party B
     shall not raise any objection.

14.  This Agreement is executed in duplicate with each party holding one copy.
     This Agreement shall be effective upon execution. All disputes which may
     arise in connection to or out of this Agreement shall be referred to the
     courts appointed by Party A as the court of first instance.

The Contracting Parties:

Party A:      Nantze Export Processing Zone Administration (with seal)
By:           Ding-bai Pan
Add:          600, Jia-chang Road, Nantze District, Kaohsiung


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<PAGE>


Party B:      ASE Test Inc. (with seal)
By:           Chen-sheng Chang
Add:          No.10, West fifth Street, Nantze Export Processing Zone, Kaohsiung
Corporate License No.: Jing-Jia-Chu-Hsing-Zi-3418

Dated: April 17, 2000

(With Official Seal)


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