TSMC Appoints Dr. Fu-Chieh Hsu as Vice President of Design and Technology Platform

Hsinchu, Taiwan, R.O.C. - March 29, 2006 – TSMC today announced the appointment of Dr. Fu-Chieh Hsu as Vice President of Design and Technology Platform. Dr. Hsu will be responsible for all design service operations at TSMC and provide customers with technology platform solutions together with Marketing and R&D. Dr. Hsu will take office at the end of March and report directly to President and Chief Executive Officer Dr. Rick Tsai. This appointment will be formally approved in the next Board of Directors meeting.

“Dr. Hsu has extensive experience in the semiconductor industry. He has also cooperated with TSMC for many years,” said Dr. Tsai. “We are delighted to have Dr. Hsu join TSMC’s management team, and we believe that he will make outstanding contributions to the development of TSMC’s design services and technology platform.”

Dr. Hsu founded Monolithic System Technology Inc. (MoSys) in 1991 and served as its Chairman and Chief Executive Officer until retiring at the end of 2004. He was the Chairman and President of Myson Technology Inc. (now Myson Century Inc.) from 1990 to 1991. Prior to that, Dr. Hsu worked at Integrated Device Technology Inc. as Chief Technology Officer and Vice President as well as other senior positions. Dr. Hsu also served at Hewlett-Packard Laboratories. Dr. Hsu has published or contributed to more than 40 papers and also holds 55 U.S. patents.

Dr. Hsu received his Bachelor of Science degree in electrical engineering from National Taiwan University in 1978, and Master of Science and Ph.D. degrees in electrical engineering and computer sciences from University of California, Berkeley, in 1981 and 1983, respectively.