Document:

<PAGE>
                                                                    Exhibit 4.54

                     Dated this 30th day of October, 2002
                                ----        -------  ----

                                     Between

                    CHARTERED SEMICONDUCTOR MANUFACTURING LTD

                                       And

                          ST ASSEMBLY TEST SERVICES LTD

                       ----------------------------------

                              AMENDED AND RESTATED
                          TURNKEY SUBCONTRACT AGREEMENT
                                       FOR
                    SORT, ASSEMBLY AND/OR FINAL TEST SERVICES

                       ----------------------------------
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                                    CONTENTS

<TABLE>
<CAPTION>
Clause                                                                                             Page
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<S>                                                                                                <C>
 1.  DEFINITIONS                                                                                     1

 2.  END CUSTOMER                                                                                    2

 3.  SORT, ASSEMBLY AND FINAL TEST SERVICES                                                          3

 4.  PLANNING                                                                                        4

 5.  PURCHASE ORDERS                                                                                 4

 6.  PRICING AND PAYMENT TERMS                                                                       5

 7.  QUALITY CONTROL AND INSPECTION                                                                  5

 8.  PERFORMANCE                                                                                     5

 9.  SPECIFICATION CONTROL                                                                           6

10.  PRODUCTION HALTS                                                                                6

11.  PROCEDURE FOR CUSTOMER RETURN                                                                   6

12.  DELIVERY                                                                                        7

13.  TERM AND TERMINATION                                                                            8

14.  FORCE MAJEURE                                                                                   9

15.  INDEMNITY                                                                                       9

16.  LIMITATION OF LIABILITY                                                                        10

17.  CONFIDENTIALITY                                                                                11

18.  APPLICABILITY OF AGREEMENT TO AFFILIATE                                                        11

19.  NOTICES                                                                                        11

20.  WAIVER AND REMEDIES                                                                            12

21.  SEVERANCE                                                                                      12

22.  ENTIRE AGREEMENT                                                                               13

23.  NO ASSIGNMENT OR SUB-CONTRACTING                                                               13

24.  GOVERNING LAW                                                                                  13

APPENDIX A - SPECIFICATIONS RELATING TO THE SORT, ASSEMBLY AND/OR FINAL TEST OF WAFERS
 AND/OR UNITS                                                                                       15
</TABLE>
<PAGE>
THIS AMENDED AND RESTATED TURNKEY SUBCONTRACT AGREEMENT is made this 30th day of
October, 2002 (the 'Effective Date') by and between:-

(1)  CHARTERED SEMICONDUCTOR MANUFACTURING LTD, a company incorporated in
     Singapore, with its principal place of business at 60 Woodlands Industrial
     Park D, Street 2, Singapore 738406 (hereinafter referred to as
     'Chartered'); and

(2)  ST ASSEMBLY TEST SERVICES LTD, a company incorporated in Singapore, with
     its principal place of business at 5 Yishun Street 23, Singapore 768442
     (hereinafter referred to as 'STATS').

WHEREAS

(A)  Chartered is desirous of manufacturing Wafers and/or Units (as hereinafter
     defined) for End Customers (as hereinafter defined) on a sorted, assembled
     and/or final tested basis. This will involve the manufacture of Wafers by
     Chartered and the subsequent subcontracting of the sort, assembly and/or
     final test services related to Wafers and/or Units to a third-party;

(B)  STATS is in the business of performing sort, assembly and final test
     services related to Wafers and/or Units;

(C)  On March 21, 2000, Chartered and STATS entered into a Turnkey Subcontract
     Agreement for the purpose of having STATS perform the sort, assembly and/or
     final test services for Wafers and/or Units; and

(D)  The Parties desire to amend and restate the Turnkey Subcontract Agreement
     on the terms set out below.

NOW  IT IS HEREBY AGREED as follows :-

1.   DEFINITIONS

1.1  In this Agreement, unless otherwise defined or the context otherwise
     requires, the following words and expressions shall bear the following
     meanings:-

     'Affiliate' means Chartered's joint venture fabs, Silicon Manufacturing
     Partners Pte Ltd and Chartered Silicon Partners Pte Ltd, and such other
     corporation that may be agreed to by the Parties from time to time.

     'End Customer' means Chartered's customer who has appointed Chartered as
     manufacturer of Wafers and/or Units on a sorted, assembled and/or final
     tested basis.

                                       1
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     'Parties' mean collectively Chartered and STATS, and 'Party' shall mean any
     one of them.

     'Products' mean End Customer's integrated circuit products identified by
     Chartered and/or End Customer's product part numbers.

     'Technical Matters' mean all matters related to (a) transfer, evaluation
     and release of test programs for sort and/or final test, (b) probecard
     and/or loadboard configuration; (c) determination of gross die per Wafer
     ('gdpw'), net die per Wafer ('ndpw'), sort test time and final test time;
     (d) tester platform and package information; (e) test and/or process flow
     requirements; (f) bonding diagram, marking instructions, assembly process
     requirements and qualification requirements and bill of materials, (g)
     quality and reliability requirements; and (h) such other matters that the
     Parties may mutually designate in writing from time to time as 'Technical
     Matters'.

     'Units' mean finished die in packaged form.

     'Wafer' means 150mm, 200mm and / or 300mm silicon wafers manufactured by
     Chartered and containing finished die for the Products.

     'Works' mean the sort, assembly and/or final test services to be performed
     by STATS with respect to the Wafers and/or Units, and/or such other
     services and activities which STATS shall provide to Chartered, including
     without limitation, shipping services to End Customer.

1.2  References to recitals, clauses and appendices are references to recitals,
     clauses and appendices of this Agreement.

1.3  The headings in this Agreement are inserted for convenience only and shall
     be ignored in the interpretation of this Agreement.

1.4  Unless the context otherwise requires, words denoting the singular number
     shall include the plural and vice versa, words importing the masculine
     gender shall include the feminine gender and words importing a person shall
     include a company or corporation and vice versa.

2.   END CUSTOMER

2.1  Where expedient, Chartered may authorise STATS to communicate directly with
     End Customer on any Technical Matters. In this regard, STATS shall provide
     regular updates to Chartered regarding the exchange of information
     including copying (when requested by Chartered) of all correspondence
     between STATS and End Customer to Chartered. For the purposes of this
     Agreement, where the communication between Chartered and STATS is related
     to Technical Matters, references to 'Chartered' shall, where the context so
     requires, also include End Customer.

                                       2
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2.2  STATS shall have no authority nor shall STATS hold out to End Customer as
     having the authority or right to assume, create or undertake any obligation
     of any kind whatsoever, expressed or implied, on behalf of or in the name
     of Chartered, without the prior written consent of Chartered.

2.3  Chartered may consign equipment for the Works, or where mutually agreed in
     writing procure the direct consignment of End Customer's equipment, to
     STATS for use exclusively in performing the Works for End Customer. With
     respect to STATS owned equipment, STATS shall keep Chartered informed and
     updated on any equipment upgrades.

3.   SORT, ASSEMBLY AND FINAL TEST SERVICES

3.1  STATS shall undertake the sort, assembly and/or final test services in
     accordance with the terms of this Agreement.

3.2  Chartered shall provide at its own expense requisite quantities of
     probecards and loadboard per project. STATS shall be responsible for the
     maintenance of and damage to the probecards and loadboards.

3.3  Chartered shall ensure that End Customer supplies to STATS all test
     programs to be used in the Works (the 'Test Programs'), including the
     necessary correlation units for correlation, including probecard wafers and
     golden wafers. STATS may initiate and modify in any manner such Test
     Programs without the prior written consent of Chartered, provided STATS
     shall not implement such modified Test Program without Chartered's prior
     written consent. STATS shall, at the written request of Chartered, develop
     Test Programs or undertake Test Program conversion on such terms and
     conditions to be mutually agreed.

3.4  Chartered shall approve and bear the cost of all other non-recurring
     engineering charges to be incurred in the Works.

3.5  STATS shall be responsible for the maintenance of or damage to goods
     consigned by End Customer to STATS (the 'Consigned Goods'), save that STATS
     shall not be responsible for damage to the Consigned Goods due to fair wear
     and tear and acts of God or arising out of the negligence, default, acts or
     omissions to act of Chartered's employees, agents or contractors. For the
     purposes of this Agreement, Consigned Goods shall mean testers, correlation
     wafers, golden wafer, golden units, probecard wafers and software.

3.6  Chartered shall obtain and maintain liability insurance and insurance
     against loss or damage (including, without limitation, loss by fire, theft
     and such other risks of loss as are customarily insured against) to the
     Wafers and/or Units (including tested and untested Wafers and/or Units, and
     packaged and unpackaged Wafers and/or Units) and all loadboards,
     probecards, and Consigned Goods purchased or procured by Chartered for the
     performance of the Works. Such insurance shall (subject to Clause 16.1) be
     in such amounts, in such form and with such insurers as Chartered deems
     appropriate.

                                       3
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3.7  STATS shall be responsible to put in place a disaster recovery plan to
     ensure a commercially reasonable recovery to operational level from any
     disasters, accidents, mishaps, unforeseen circumstances or acts of God.

4.   PLANNING

4.1  Chartered shall provide to STATS not later than the 30th day of each
     calendar month, its rolling 6-monthly forecast of its monthly volume
     requirements for the performance of the Works for each Product. Chartered
     shall not be liable for any direct or indirect materials incurred by STATS
     in reliance of the said forecasts if Chartered's confirmed orders are less
     than Chartered's forecast orders for the Works, provided that Chartered
     shall only be liable for materials unique to End Customer's requirements
     based on Chartered's forecast for the Works up to a maximum of 1 month plus
     lead time for the procurement of the unique material. STATS shall declare
     all unique materials and lead time to Chartered, and the said lead time
     shall be mutually agreed to by the Parties.

4.2  STATS shall use best efforts to meet Chartered's forecast volumes and to
     address any potential capacity issues, STATS shall be responsible to
     provide a back-up plan that enables them to support their commitment to
     Chartered's volume requirements. STATS shall keep Chartered informed of its
     capacity situation and provide Chartered with sufficient pre-warning of any
     capacity issues that STATS may experience. Chartered agrees that it shall
     work with STATS in the spirit of cooperation to develop the turnkey
     business for the mutual benefit of both Parties.

5.   PURCHASE ORDERS

5.1  Chartered may furnish STATS with blanket purchase orders or individual
     purchase orders for the Works.

5.2  All purchase orders issued by Chartered shall reference this Agreement. The
     terms and conditions of this Agreement shall exclusively govern the Works
     and shall override any conflicting, amending and/or additional terms
     contained in STATS' quotation and/or acceptance documents. No variation or
     addition to the terms and conditions contained in this Agreement shall be
     binding unless agreed in writing between the authorised representatives of
     the Parties.

5.3  Chartered's purchase order shall contain such information and requirements
     to be mutually agreed between the Parties.

5.4  In order for Chartered to place purchase orders with STATS, STATS shall
     respond to Chartered in accordance with the following time frames:

     (a)  Works Quote        within 24 hours of Chartered's RFQ for Works,
                             provided all relevant information is given to
                             STATS;
     (b)  NRE Quote          within 48 hours of Chartered's RFQ for NRE;

                                       4
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     (c)  Delivery Commit    within 12 hours of Chartered's schedule request for
                             orders within the forecasted volume, and within 48
                             hours of Chartered's schedule request for orders in
                             excess of forecasted volumes.

6.   PRICING AND PAYMENT TERMS

6.1  The fees for the Works charged to Chartered shall be in accordance with the
     terms of any price schedule agreed to by the Parties from time to time for
     the Wafers and/or Units (the 'Agreed Price Schedule'). However in special
     circumstances related to an extra-ordinary End Customer requirement
     Chartered and STATS shall review the Agreed Price Schedule for that End
     Customer.

6.2  Unless otherwise set out in Chartered's applicable purchase order, payment
     for the Works shall be made by Chartered in United States dollars within 30
     days from the date of the acceptance of the Works by Chartered. Chartered
     shall make payment by telegraphic transfer to an account nominated by
     STATS, or such other method requested by STATS.

6.3  All invoices issued by STATS for the Works shall identify the Wafers and/or
     Units and the relevant Chartered purchase order number, Product part
     number, description of items and quantity of items shipped and the type of
     services performed by STATS.

6.4  Chartered and STATS shall not disclose the terms of this Agreement, the
     Agreed Price Schedule, STATS quotation to Chartered or Chartered purchase
     order to STATS, to End Customer.

7.   QUALITY CONTROL AND INSPECTION

     In order to control and ensure quality assurance, Chartered will have the
     right at all reasonable times and on reasonable notice, either by itself or
     through its auditors, to inspect the assembly/ test lines, warehouse,
     facilities, equipment, materials, data, billings and systems connected with
     the Works, subject always to the confidentiality undertakings in Clause 17.
     STATS undertakes to make available all documentation and grant Chartered
     all necessary access rights for Chartered or its auditors to conduct audit
     as permitted under this Clause 7.

     STATS shall provide products/ services as procured with acceptable quality
     as defined in CHRT specifications.

8.   PERFORMANCE

8.1  STATS shall implement a continuous improvement program where STATS will
     work to reduce cycle time, reaching mutually agreed performance benchmarks.

                                       5
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8.2  STATS shall implement a continuous improvement program where STATS will
     work with Chartered on an ongoing basis to reduce costs against an agreed
     cost down target. Targets will be set based on cost analysis received and
     final pricing agreed between the Parties.

9.   SPECIFICATION CONTROL

9.1  Notwithstanding that Chartered will be referencing STATS standard
     manufacturing and quality flows and procedures, STATS shall at the same
     time be required to comply with Chartered standard operating specifications
     relating to back-end services and subcontractors. The list of applicable
     STATS specifications and Chartered specifications are set out in Appendix A
     hereto. In addition, STATS shall comply with such other specifications
     (including End Customer specifications and procedures) that Chartered may
     issue from time to time.

10.  PRODUCTION HALTS

10.1 Chartered may at any time request STATS to halt the Works still in-process
     as a result of reliability and quality issues, and STATS shall effect
     stoppage immediately. The Works shall remain on hold pending written
     directions from Chartered.

10.2 If Chartered decides to cancel any part of the halted Works, Chartered
     shall pay to STATS the cost of the work-in-progress only, as at the date of
     Chartered's written notice to halt the Works. The cost of the
     work-in-progress arising from the halt shall be borne by STATS if the Works
     halt was due to quality and reliability defects caused by STATS, without
     prejudice to Chartered's right to claim against STATS for any defects in
     Wafers and/or Units under Clause 11.

10.3 STATS shall, if commercially feasible, re-start the Works as soon as
     possible after receipt of Chartered's written request. The cost of re-start
     shall be borne by STATS if the Works halt was due to quality and
     reliability defects caused by STATS, without prejudice to Chartered's right
     to claim against STATS for any defects in Wafers and/or Units under Clause
     11.

11.  PROCEDURE FOR CUSTOMER RETURN

11.1 STATS warrants that the Works performed and the Wafers and/or Units
     supplied hereunder shall conform to Chartered's specifications and will be
     free from any defects in workmanship, materials and manufacture for a
     period of 90 days from the date of acceptance of the Wafers and/or Units by
     Chartered, save for returns arising from field reliability failure, in
     which event the applicable warranty period shall be 1 year from the date of
     acceptance of the Wafers and/or Units by Chartered.

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11.2 STATS shall be under no liability for probe yield in the Wafers or final
     test yield in the Units, unless the loss in yield is due to the Works
     performed by STATS.

11.3 With respect to Wafers' and/or Units returned with respect to this Clause
     11, STATS shall at STATS' sole option, and at STATS' sole expense and with
     top priority, replace, repair, retest or rework the subject Wafers and/or
     Units. Such replaced, repaired, retested or reworked Wafers and/or Units
     shall be delivered Exworks (STATS' factory in Singapore) (Incoterms 2000)
     or such other delivery terms as may be specified by End Customer.

11.4 SUBJECT TO CLAUSE 16, THE FOREGOING STATES STATS' ENTIRE LIABILITY, WHETHER
     IN CONTRACT, TORT OR OTHERWISE, FOR ALL CLAIMS BASED ON FAILURE OR DEFECTS
     IN WAFERS AND/OR UNITS. THE EXPRESS TERMS OF THIS AGREEMENT ARE IN LIEU OF
     ALL WARRANTIES, CONDITIONS, TERMS, UNDERTAKINGS AND OBLIGATIONS IMPLIED BY
     STATUTE, COMMON LAW, CUSTOM, TRADE USAGE, COURSE OF DEALING OR OTHERWISE,
     ALL OF WHICH ARE HEREBY EXPRESSLY EXCLUDED TO THE FULLEST EXTENT PERMITTED
     BY LAW AND STATS SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR
     FITNESS FOR A PARTICULAR PURPOSE.

12.  DELIVERY

12.1 Wafers shall be delivered by Chartered to STATS for the performance of the
     Works Exworks (STATS' factory in Singapore) (Incoterms 2000). Title to the
     Wafers and/or Units (including finished goods and work-in-progress) and
     equipment purchased or procured by Chartered for the performance of the
     Works, shall be vested in Chartered throughout the performance of the
     Works.

12.2 STATS shall strictly adhere to the cycle times that have been mutually
     agreed between the Parties, and good Wafers and/or Units and (if requested
     by Chartered or End Customer) reject Wafers and/or Units shall be
     delivered, Exworks (STATS' factory in Singapore) (Incoterms 2000). STATS
     shall immediately give Chartered written notice of any prospective failure
     to deliver within the Scheduled Delivery Date.

12.3 STATS shall deliver all quantities of Wafers and/or Units to Chartered
     and/or End Customer in STATS standard containers and packaging which comply
     with Chartered's specifications as notified by Chartered to STATS from time
     to time, with proper labels identifying the specific Product lot number and
     shall be accompanied by an invoice specifying the purchase order number,
     quantity and agreed processing documentation. STATS shall forward a copy of
     the bill of lading or the airway bill as soon as practicable to Chartered
     for the delivered Wafers and/or Units, and a monthly report furnishing the
     details of the month's shipment made to the End Customer, for GST billing
     purposes.

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12.4 STATS shall not scrap any Wafers and/or Units without first seeking the
     prior written permission of Chartered.

12.5 If at any time, STATS decides to discontinue its manufacture of any of the
     parts due to equipment or process obsolescence, STATS shall notify
     Chartered in writing of its intention and ensure that Chartered receives
     such notification no less than 6 months before the intended date of
     discontinuance, in order to enable Chartered to place end-of-life orders
     before such intended date of discontinuance.

13.  TERM AND TERMINATION

13.1 This Agreement shall commence on the Effective Date and shall continue for
     a period of 3 years therefrom and shall thereafter be automatically renewed
     annually, unless earlier terminated in the following events :-

     (a)  by agreement of the Parties;

     (b)  forthwith by either Party if the other commits any material breach of
          any term of this Agreement and which in the case of a breach capable
          of being remedied shall not have been remedied within 60 days of a
          written request to remedy the same;

     (c)  at the option of either Party, in any of the following events:-

          (i)   the inability of the other Party to pay its debts in the normal
                course of business; or

          (ii)  the other Party ceasing or threatening to cease wholly or
                substantially to carry on its business, otherwise than for the
                purpose of a reconstruction or amalgamation without insolvency;
                or

          (iii) any encumbrancer taking possession of or a receiver, trustee or
                judicial manager being appointed over the whole or any
                substantial part of the undertaking, property or assets of the
                other Party; or

          (iv)  the making of an order by a court of competent jurisdiction or
                the passing of a resolution for the winding-up of the other
                Party or any company controlling the other Party, otherwise than
                for the purpose of a reconstruction or amalgamation without
                insolvency.

13.2 Termination of this Agreement pursuant to Clause 13.1 shall take effect
     immediately upon the issue of a written notice to that effect by the Party
     terminating the Agreement to the other. The termination of this Agreement
     however caused shall be without prejudice to any obligations or rights of
     either Party which have accrued prior to such termination and shall not
     affect any

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     provision of this Agreement which is expressly or by implication provided
     to come into effect on or to continue in effect after such termination.

14.  FORCE MAJEURE

14.1 Each Party's obligations under this Agreement shall be suspended upon the
     occurrence of a force majeure event such as act of God, flood, earthquake,
     fire, explosion, act of government, war, civil commotion, insurrection,
     embargo, riots, lockouts, labour disputes affecting such Party, for such
     period as such force majeure event may subsist. Upon the occurrence of a
     force majeure event, the affected Party shall notify the other Party in
     writing of the same and shall by subsequent written notice after the
     cessation of such force majeure event inform the other Party of the date on
     which that Party's obligation under this Agreement shall be reinstated.

14.2 Notwithstanding anything in this Clause 14, upon the occurrence of a force
     majeure event affecting either Party, and such force majeure event
     continues for a period exceeding 6 consecutive months without a prospect of
     a cure of such event, the other Party shall have the option, in its sole
     discretion, to terminate this Agreement. Such termination shall take effect
     immediately upon the written notice to that effect from the other Party to
     the Party affected by the force majeure event.

15.  INDEMNITY

15.1 Chartered shall indemnify, hold harmless and defend STATS from and against
     any claim, suit, demand, or action alleging that the manufacture, sale, or
     other disposition of the Wafers and/or the Units or a process, design or
     Test Program licensed from or otherwise provided by Chartered or End
     Customer infringes a patent, copyright, trade secret, or any other
     proprietary right of any third-party, including, without limitation, any
     infringement based on specifications furnished by Chartered or End Customer
     or resulting from the use of any Test Program, equipment or process
     specified by Chartered or End Customer, and Chartered shall indemnify and
     hold harmless STATS against any and all direct losses, liabilities,
     damages, awards of settlement (including court costs) and expenses
     (including all reasonable attorney's fees, whether or not legal proceedings
     are commenced) arising from any such claim, suit, demand, or action.

15.2 STATS shall notify Chartered of any claim of infringement or of
     commencement of any suit, action, or proceedings against STATS (the 'STATS
     Proceedings') alleging infringement of any intellectual property rights of
     any third-party by Chartered's Wafers and/or Units or a process or design
     licensed from or otherwise provided by Chartered or End Customer or the use
     of a Test program provided by Customer, promptly after receiving notice
     thereof and shall provide reasonable assistance to Chartered (at
     Chartered's expense) in connection with the defence thereof. Chartered
     shall have the right in its sole discretion and at its expense to assume
     full control of the defence and settlement of any such STATS Proceedings
     and in any and all negotiations with respect thereto.

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15.3 STATS shall indemnify, hold harmless and defend Chartered from and against
     any claim, suit, demand, or action alleging that the Works or any part of
     the Works infringes a patent, copyright, trade secret, or any other
     proprietary right of any third-party, and STATS shall indemnify and hold
     harmless Chartered against any and all direct losses, liabilities, damages,
     awards of settlement (including court costs) and expenses (including all
     reasonable attorney's fees, whether or not legal proceedings are commenced)
     arising from any such claim, suit, demand, or action.

15.4 Chartered shall notify STATS of any claim of infringement or of
     commencement of any suit, action or proceedings (the 'Chartered
     Proceedings') alleging infringement of any intellectual property rights of
     any third-party by the Works or any part of the Works, promptly after
     receiving notice thereof and shall provide reasonable assistance to STATS
     (at STATS' expense) in connection with the defence thereof. STATS shall
     have the right in its sole discretion and at its expense to assume full
     control of the defence and settlement of any such Proceedings and in any
     and all negotiations with respect thereto.

15.5 SUBJECT TO CLAUSE 16, EITHER PARTY'S AGGREGATE CUMULATIVE LIABILITY TO THE
     OTHER PARTY ARISING OUT OF THE INDEMNIFICATION UNDER THIS CLAUSE 15 SHALL
     NOT EXCEED THE TOTAL AMOUNT RECEIVED BY STATS FROM CHARTERED IN RESPECT OF
     THE PERFORMANCE OF THE WORKS BY STATS. THE FOREGOING STATES EACH PARTY'S
     ENTIRE LIABILITY AND OBLIGATION (EXPRESS, IMPLIED, STATUTORY OR OTHERWISE)
     WITH RESPECT TO INTELLECTUAL PROPERTY INFRINGEMENT OR CLAIMS THEREFOR
     REGARDING ANY PART OF THE WORKS PERFORMED PURSUANT TO THIS AGREEMENT.

16.  LIMITATION OF LIABILITY

16.1 STATS's liability to Chartered for Wafers or die destroyed or damaged by
     STATS shall not exceed 100% of the average selling price ('ASP') charged by
     STATS to Chartered for the Works rendered or to be rendered on the damaged
     or destroyed Wafers or die but STATS may, at its absolute discretion and on
     a goodwill basis reimburse Chartered in excess of the amount limited above.

16.2 Save as provided in Clauses 16.1, the total liability of either Party on
     all claims of any kind, whether in contract, tort (including negligence),
     strict liability or otherwise (including as a result of intellectual
     property infringement) arising out of the performance or breach of this
     Agreement or use of the Wafers and/or Units or the performance of the Works
     shall not exceed the total amount received by STATS from Chartered in
     respect of the performance of the Works by STATS.

16.3 In no event shall either Party be liable to the other with respect to any
     subject matter of this Agreement under any contract, tort (including
     negligence), strict liability or other legal or equitable theory, for any
     incidental, consequential,

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     special, exemplary or indirect damages of any sort even if such Party has
     been informed of the possibility of such damages.

17.  CONFIDENTIALITY

17.1 All Confidential Information shall be kept confidential by the recipient
     unless or until the recipient Party can reasonably demonstrate that any
     such Confidential Information is, or part of it is, in the public domain
     through no fault of its own, whereupon to the extent that it is in the
     public domain or is required to be disclosed by law this obligation shall
     cease. For the purposes of this Agreement, 'Confidential Information' shall
     mean all communications between the Parties and/or between either Party and
     End Customer, and all information and other materials supplied to or
     received by either of them from the other or End Customer (a) prior to or
     on the date of this Agreement whether or not marked confidential; (b) after
     the date of this Agreement which is marked confidential with an appropriate
     legend, marking, stamp or other obvious written identification by the
     disclosing Party and/or End Customer, and (c) all information concerning
     the business transactions and the financial arrangements of the Parties
     and/or End Customer with any person with whom any of them is in a
     confidential relationship with regard to the matter in question coming to
     the knowledge of the recipient.

17.2 The Parties shall take all reasonable steps to minimise the risk of
     disclosure of Confidential Information, by ensuring that only they
     themselves and such of their employees and directors whose duties will
     require them to possess any of such information shall have access thereto,
     and will be instructed to treat the same as confidential.

17.3 The obligation contained in this Clause 17 shall endure, even after the
     termination of this Agreement, for a period of 5 years from the date expiry
     or termination of this Agreement except and until such Confidential
     Information enters the public domain as set out above.

18.  APPLICABILITY OF AGREEMENT TO AFFILIATE

     Affiliates of Chartered may enter into agreements for the Works with STATS
     in their own name and for their own account under the terms and conditions
     of this Agreement.

19.  NOTICES

19.1 Addresses

     All notices, demands or other communications required or permitted to be
     given or made under or in connection with this Agreement shall be in
     writing and shall be sufficiently given or made (a) if delivered by hand or
     commercial courier or (b) sent by pre-paid registered post or (c) sent by
     legible facsimile transmission

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     (provided that the receipt of such facsimile transmission is confirmed and
     a copy thereof is sent immediately thereafter by pre-paid registered post
     or commercial courier) addressed to the intended recipient at its address
     or facsimile number set out below. A Party may from time to time notify the
     others of its change of address or facsimile number in accordance with this
     Clause 19.

     STATS

     5 Yishun Street 23
     Singapore 768442
     Facsimile no: (65) 6822 7837
     Attention: Legal Department

     Chartered

     60 Woodlands Industrial Park D
     Street 2
     Singapore 738406
     Facsimile no: (65) 6360 4970
     Attention: Legal Department

19.2 Deemed Delivery

     Any such notice, demand or communication shall be deemed to have been duly
     served (a) if delivered by hand or commercial courier, or sent by pre-paid
     registered post, at the time of delivery; or (b) if made by successfully
     transmitted facsimile transmission, at the time of dispatch (provided that
     the receipt of such facsimile transmission is confirmed and that
     immediately after such dispatch, a copy thereof is sent by pre-paid
     registered post or commercial courier).

20.  WAIVER AND REMEDIES

20.1 No delay or neglect on the part of either Party in enforcing against the
     other Party any term or condition of this Agreement or in exercising any
     right or remedy under this Agreement shall either be or be deemed to be a
     waiver or in any way prejudice any right or remedy of that Party under this
     Agreement.

20.2 No remedy conferred by any of the provisions of this Agreement is intended
     to be exclusive of any other remedy which is otherwise available at law, in
     equity, by statute or otherwise and each and every other remedy shall be
     cumulative and shall be in addition to every other remedy given hereunder
     or now or hereafter existing at law, in equity, by statute or otherwise.
     The election of any one or more of such remedies by either of the Parties
     shall not constitute a waiver by such Party of the right to pursue any
     other available remedy.

21.  SEVERANCE

                                       12
<PAGE>
     If any provision or part of this Agreement is rendered void, illegal or
     unenforceable in any respect under any enactment or rule of law, the
     validity, legality and enforceability of the remaining provisions shall not
     in any way be affected or impaired thereby.

22.  ENTIRE AGREEMENT

22.1 This Agreement and the Appendices constitutes the entire agreement between
     STATS and Chartered and shall supersede all previous agreements and
     undertakings between Parties with respect to the subject matter hereof.

22.2 The following Appendices are hereby deemed a part of this Agreement and
     incorporated herein by reference. The term 'Agreement' includes the
     following Appendices:-

     Appendix A        Specifications relating to Sort, Assembly and Final Test
                       of Wafers and/or Units

23.  NO ASSIGNMENT OR SUB-CONTRACTING

     Unless otherwise agreed in writing by the Parties, this Agreement may not
     be assigned or sub-contracted by either Party to any third-party without
     the prior written consent of the other Party, save that STATS may
     subcontract the plating process, probecard, loadboard and tape and reel
     services to its nominated subcontractors subject to Chartered's prior
     written consent for the change of subcontractors.

24.  GOVERNING LAW

24.1 This Agreement shall be governed by and construed in accordance with the
     substantive laws of Singapore. The Parties hereby irrevocably submit to the
     non-exclusive jurisdiction of the courts of Singapore.

                                       13
<PAGE>
24.2 The Parties hereby specifically exclude the application of the United
     Nations Convention on Contracts for the International Sale of Goods to this
     Agreement.

IN WITNESS WHEREOF the Parties have hereunto entered into this Agreement as at
the date first above written.

/s/ Ang Tang Yong
----------------------------------
Name: Ang Tang Yong
Title:  Vice President for QRA and Fab Support Operation
for and on behalf of
CHARTERED SEMICONDUCTOR MANUFACTURING LTD

/s/ Cheong Chan Yong
----------------------------------
Name:  Cheong Chan Yong
Title: Vice President, Sales and Marketing
for and on behalf of
ST ASSEMBLY TEST SERVICES LTD

                                       14
<PAGE>
                                   APPENDIX A

              SPECIFICATIONS RELATING TO THE SORT, ASSEMBLY AND/OR
                        FINAL TEST OF WAFERS AND/OR UNITS

<TABLE>
<CAPTION>
---------------------------------------------------------------------------------------------------------
STATS SPECIFICATIONS
(AND AMENDMENTS THERETO)
---------------------------------------------------------------------------------------------------------
DOCUMENT NO.                            DOCUMENT TITLE
---------------------------------------------------------------------------------------------------------
<S>                                     <C>
TG080003QP                              Project Initiation/NRE and Program Acceptance Criteria
---------------------------------------------------------------------------------------------------------
QT090010QP                              QA Incoming Wafer Inspection Procedure
---------------------------------------------------------------------------------------------------------
TG160001QP                              Test Program/Audit Verification
---------------------------------------------------------------------------------------------------------
TG020001QP                              Test Administration Procedure
---------------------------------------------------------------------------------------------------------
QT090004QP                              QA Outgoing Wafer Inspection Procedure
---------------------------------------------------------------------------------------------------------
AD140014QP                              Chartered Wafer Drop Ship Procedure
---------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
---------------------------------------------------------------------------------------------------------
CHARTERED SPECIFICATIONS
(AND AMENDMENTS THERETO)
---------------------------------------------------------------------------------------------------------
DOCUMENT NO.                            DOCUMENT TITLE
---------------------------------------------------------------------------------------------------------
<S>                                     <C>
TK-001                                  SORT/FINAL TEST QUALIFICATION/ CORRELATION PROCEDURES FOR
                                        APPROVED SUBCONTRACTOR
---------------------------------------------------------------------------------------------------------
TK-002                                  ENGINEERING CHANGE CONTROL FOR TEST SUBCONTRACTORS
---------------------------------------------------------------------------------------------------------
TK-003                                  ABNORMAL YIELD CONTROL FOR ASSEMBLY/ TEST SUBCONTRACTOR
---------------------------------------------------------------------------------------------------------
TK-008                                  PROCUREMENT SPECIFICATION FOR WAFER SORT AND FINAL TEST SERVICES
---------------------------------------------------------------------------------------------------------
TK-010                                  MANUFACTURING CHANGE CONTROL FOR ASSEMBLY SUBCONTRACTOR
---------------------------------------------------------------------------------------------------------
TK-030                                  PROCEDURE FOR CUSTOMER REWORK
---------------------------------------------------------------------------------------------------------
BX-005                                  TURNKEY BUSINESS PROCEDURE
---------------------------------------------------------------------------------------------------------
</TABLE>

                                       15Exhibit 10q

                     FIRST AMENDMENT TO EMPLOYMENT AGREEMENT

THIS FIRST AMENDEMENT TO EMPLOYMENT AGREEMENT ("First Amendment"), dated as of
the 3rd day of December, 2002, by and between Atrion Corporation, a Delaware
corporation (the "Company"), and Emile A. Battat (the "Executive").

                              W I T N E S S E T H:

WHEREAS, the Company and the Executive entered into an Employment Agreement
dated as of January 1, 2002 (the "Employment Agreement"), which Employment
Agreement is presently in full force and effect; and

WHEREAS, the Company and the Executive desire to amend certain provisions of the
Employment Agreement.

NOW, THEREFORE, in consideration of the premises and the mutual covenants
hereinafter set forth, the parties hereby agree as follows:

1. The first paragraph of Section 3(a) of the Employment Agreement is deleted in
its entirety and the following is substituted in lieu and instead thereof:

      "(a) Base Salary and Bonuses. The Company shall pay the Executive a base
      salary (the "Base Salary") of Five Hundred Thousand and no/100 Dollars
      ($500,000.00) for each calendar year in the Employment Term."

2. The second paragraph of Section 3(a) of the Employment Agreement is amended
by deleting the phrase "fifty percent (50%) of the Base Salary for such calendar
year" and substituting in lieu and instead thereof the following:

      "Two Hundred Fifty Thousand and no/100 Dollars ($250,000.00) for calendar
      year 2002 and One Hundred Thousand and no/100 Dollars ($100,000.00) for
      each calendar year in the Employment Term after 2002."

3. This First Amendment may be executed in counterparts and by facsimile, each
of which when so executed shall be deemed to be an original, and such
counterparts shall together constitute and be one and the same instrument.

4. As hereby amended, the Employment Agreement remains in full force and effect.

                      [SIGNATURES APPEAR ON FOLLOWING PAGE]

                                      -51-
<PAGE>

IN WITNESS WHEREOF, the parties have executed this First Amendment as of the
date first above written.

                                           ATRION CORPORATION

                                           By /s/ Jeffery Strickland
                                              ----------------------
                                               Its  VP and CFO

                                           /s/Emile A. Battat
                                           ------------------
                                           Emile A. Battat

                                      -52-

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