1934 Act Registration No. 1-14700

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 OF
THE SECURITIES EXCHANGE ACT OF 1934

For the month of February 2007

Taiwan Semiconductor Manufacturing Company Ltd.

(Translation of Registrant’s Name Into English)

No. 8, Li-Hsin Rd. 6,

Hsinchu Science Park,

Taiwan

(Address of Principal Executive Offices)

     (Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)

Form 20-F þ          Form 40-F o

     (Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

Yes o          No þ

(If “Yes” is marked, indicated below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82:                    .)

Taiwan Semiconductor Manufacturing Company Limited

February 26, 2007

This is to announce that Taiwan Semiconductor Manufacturing Company Ltd’s (“the Company”) (NYSE:TSM) 2007 Submission Period applicable to ADR holders of the Company for the submission of shareholder proposals will start from March 3 to March 9, 2007. All submissions must be submitted within this period. For all enquiries, please contact Citibank Shareholder Services at 1-877-CITI-ADR (248-4237).

SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Taiwan Semiconductor Manufacturing Company Ltd.
Date: February 26, 2007	By	/s/ Lora Ho
		Lora Ho
		Vice President & Chief Financial Officer