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                                                                     EXHIBIT 4.2

                           CERTIFICATE OF AMENDMENT TO
                AMENDED AND RESTATED CERTIFICATE OF INCORPORATION
                                       OF
                            ATRIX LABORATORIES, INC.

     Atrix Laboratories, Inc., a corporation organized and existing under and by
virtue of the General Corporation Law of the State of Delaware,

     DOES HEREBY CERTIFY:

     FIRST: That at a meeting of the Board of Directors of Atrix Laboratories,
Inc. duly held on February 9, 2001, resolutions were duly adopted setting forth
a proposed amendment of the Amended and Restated Certificate of Incorporation of
said corporation, declaring said amendment to be advisable and directing that
said amendment be considered at the annual meeting of the stockholders of said
corporation. The resolutions adopted by the Board of Directors of said
corporation approve the proposed amendment as follows:

     RESOLVED, that the Amended and Restated Certificate of Incorporation of
     this corporation be, and it hereby is, amended to restate Article FOURTH to
     read in full as follows:

     "The aggregate number of shares which the Corporation shall have authority
     to issue is fifty million (50,000,000) shares, divided into forty-five
     million (45,000,000) shares of common stock of the par value of $.001 per
     share and five million (5,000,000) shares of preferred stock of the par
     value of $.001 per share. The board of directors is authorized, subject to
     limitations prescribed by law, to provide for the issuance of the shares of
     preferred stock in series, and by filing a certificate pursuant to the
     applicable law of the State of Delaware, to establish from time to time the
     number of shares to be included in each such series, and to fix the
     designation, powers, preferences and rights of the shares of each such
     series and any qualifications, limitations or restrictions thereof. The
     number of authorized shares of preferred stock may be increased or
     decreased (but not below the number of shares thereof then outstanding) by
     the affirmative vote of the holders of a majority of the outstanding shares
     of common stock, without a vote of the holders of the preferred stock, or
     of any series thereof, unless a vote of any such holders is required
     pursuant to the certificate or certificates establishing any series of
     preferred stock.

     No stockholder shall be entitled to preemptive rights in the issuance of
     preferred or common stock or be entitled to cumulative voting rights."

     SECOND: That thereafter, pursuant to resolution of its Board of Directors,
at the annual meeting of the stockholders of said corporation duly called and
held, upon notice in accordance with Section 222 of the General Corporation Law
of the State of Delaware at which meeting the necessary number of shares as
required by statute was voted in favor of the amendment.

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     THIRD: That said amendment was duly adopted in accordance with the
provisions of Section 242 of the General Corporation Law of the State of
Delaware.

     FOURTH: That the capital of said corporation shall not be reduced under or
by reason of said amendment.

     IN WITNESS WHEREOF, Atrix Laboratories, Inc. has caused this certificate to
be signed by Brian G. Richmond, its Chief Financial Officer, this 8th day of
May, 2001.

                                      /s/ Brian G. Richmond
                                      ------------------------------------------
                                      Brian G. Richmond, Chief Financial Officer<PAGE>

                                                                   EXHIBIT 10.35

             Letter of Intent for Lease Contract of Factory Building

Lessor:   Tianjin Development Zone Great Wall Electronics Assembly Factory
Lessee:   Pemstar (Tianjin) Enterprise Co., Ltd.

In accordance with the Economic Contract Law of China and the relevant
regulations, and in order to specify the rights and obligations of the Lessor
("Party A") and the Lessee ("Party B"), the two parties, after consultation with
each other, hereby agree as follows:

Article 1    Party B shall lease from Party A a factory building that is located
in the Yixian Industrial Park of the Tianjin Development Zone and covers an area
of 6607 square meters for the purpose of industrial production.

Article 2    The term of the lease shall be one year and six months. Party A
shall deliver the factory building to Party B for Party B's use on October 1,
2000 and take it back on April 1, 2002. Party A agrees that the term of the
lease shall be extended accordingly for a period of time to be determined by
both parties if the second phase of Party B's project is postponed, and that
Party B may terminate the lease at any time one year after the commencement of
the lease if the second phase of Party B's project is completed ahead of
schedule.

Article 3    The rent shall be at a rate of RMB20 per square meter per month and
shall be calculated from the commencement date of the lease. The rent for the
first three months shall be paid in advance and the rent for later months shall
be paid on or before the tenth day of each of these months.

Article 4    After this Letter of Intent is signed and made effective, Party A
shall remove the facilities and equipment from the factory building one week
before the commencement of the lease and deliver the factory building to Party B
for Party B's use. Meanwhile, Party B may move into the factory building and
commence decoration. Both parties shall execute a formal lease contract, which
shall be negotiated and drafted by counsels of both parties and become effective
on the date of execution of this Letter of Intent.

Article 5    Party A shall provide Party B with the connection to water,
electricity, and gas supplies within 10 days after the execution of the lease
contract. Party A shall provide to Party B a copy of the floor plans of Party
A's complex and the leased factory building as attachments to the lease
contract.

Article 6    Party A shall provide water and electricity meters for the sole use
by Party B. Party B shall be charged for water, electricity and gas consumption
in accordance with the relevant provisions (see attachment). Party A warrants
the uninterrupted supply of electricity, water and compressed air (except for
unforeseeable reasons).

Article 7    During the term of the lease, Party B shall maintain the leased
factory building with due care and shall not make any alteration without
authorization. (Unless otherwise agreed), if the factory building suffers
serious damage at the time of expiration of the lease, Party B shall make
compensation and pay the expenses for repair.

Article 8    During the term of the lease, neither Party A nor Party B shall
re-lease the leased factory building to third parties.
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Article 9    Party A shall present certificates of legality and, during the term
of the lease, keep Party B's properties or assets that are held in Party A's
factory building from being sealed up by banks, courts, Customs Services or
creditors, and protect Party B's normal production from any interference or
interruption.

Article 10   Party B shall dispose of its industrial wastes produced during the
course of production in accordance with the relevant provisions of Party A (see
attachment).

Article 11   Party A agrees that Party B may have its own security personnel and
telephone connection in its security office and that Party A will assist Party B
with the security matters with respect to the leased factory building. Party A's
personnel shall not enter the leased factory building without Party B's
permission. Party B's personnel must hold a card issued by Party B in order to
enter the premises leased to Party B. Party B's guests must obtain a guest card
from Party B's security personnel before being allowed to enter such premises.

Article 12   Party B shall perform daily maintenance of the leased factory
building. If, however, during the term of the lease, damage is caused to Party
B's personnel or property because of the safety hazards, such as rain leakage
from the factory building's main structure, breakage of the main structure, and
overuse and leakage of water pipes, Party A shall be solely responsible for such
damage and make repairs in a timely manner, and shall not question Party B.

Article 13   The factory building leased to Party B shall conform to the safety
standards and fire prevention requirements. Party B shall pay special attention
to the safety and fire prevention matters after formal commencement of
production. Party B shall be responsible for problems relating to safety or fire
prevention that may occur within the leased factory building.

Article 14   Party B may move out its equipment at any time during the course of
performance of the lease contract. Upon the expiration of the term of the lease,
Party B shall remove the power facilities from the factory building, and the
infrastructure facilities shall be retained or removed as determined by both
parties through consultation. If Party A finds no damage caused to the factory
building and equipment after its inspection, both parties shall complete the
handing-over procedures and Party A will take back the factory building. If any
disagreement occurs, both parties shall settle it through friendly consultation.

Both parties shall, after consultation with each other, sign a supplementary
agreement in respect of any matter or matters that this lease contract may fail
to cover in compliance with the relevant provisions of the Economic Contract Law
of China. The supplementary agreement shall be equally valid. This lease
contract shall be executed in two copies, one for each party.

Lessor (Party A)                                   Lessee
(signature and company chop)                       (signature and company chop)
September 15, 2000                                 Date:

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