FORMER LAM RESEARCH TAIWAN SALES MANAGER JOINS MATTSON TECHNOLOGY

Appointment of Hsiao is Latest Step to Serve Expanding Asian Market Share

of Theodore Hsiao as Taiwan country manager. Mr. Hsiao, who brings extensive technical and sales experience to the position, is charged with overseeing the development and operations of Mattson Technology’s business in Taiwan.

Prior to joining Mattson Technology, Mr. Hsiao served as Taiwan sales manager for Lam Research Corporation for six years, dating back to the establishment of Lam’s direct operation in Taiwan. Under his leadership, Lam’s business in Taiwan grew tenfold. In all, Mr. Hsiao has more than 15 years of experience in the electronics and semiconductor industries. He received an M.S.E.E. degree from the University of Texas in 1990.

"The addition of Theodore Hsiao is a very positive step toward serving our expanding market share in Taiwan, one of the most important semiconductor-producing countries in Asia and throughout the world," said Brad Mattson, CEO of Mattson Technology. "Continually building and strengthening our global infrastructure is a high priority for Mattson Technology. We view this appointment as key to providing world class sales and service to a very sophisticated and knowledgeable market."

Mattson Technology maintains a strong presence and large market share throughout Asia. In recent weeks, Mattson Technology has installed two 300 mm systems in Korea, and announced the receipt of an order for multiple Aspen CVD systems. Mattson Technology has also announced follow on orders for Aspen RTP systems in Singapore.

In another effort to strengthen its business in Asia, Mattson Technology in October established Mattson Technology Singapore Pte. Ltd., a direct sales and service organization based in Singapore to serve customers in Singapore, Malaysia, Thailand and China.

About Mattson Technology

Mattson Technology Inc., is a leading supplier of thermal, plasma and wet semiconductor processing equipment. The company's products combine advanced process technology on a high productivity platform, backed by industry-leading support. Since beginning operations in 1989, the company's core vision has been to help bring technology leadership and productivity gains to semiconductor manufacturers worldwide. Headquartered in Fremont, Calif., the company maintains sales and support centers throughout the United States, Europe, Asia/Pacific and Japan. For more information, please contact Mattson Technology Inc., 2800 Bayview Drive, Fremont, Calif. 94538. Telephone: (800) MATTSON. Fax: (510) 657-0165. Internet:www.mattson.com