May 12, 2005

ChipMOS and Himax Extend Long-Term Agreement

Hsinchu, Taiwan, May 12, 2005 - ChipMOS TECHNOLOGIES (Bermuda) LTD. ("ChipMOS" or "the Company") (Nasdaq:IMOS) announced today that its 70% owned subsidiary, ChipMOS TECHNOLOGIES INC. ("ChipMOS Taiwan"), has extended its long-term agreement with Himax Technologies Inc. ("Himax") through 2008. The two companies have worked together since 2003.

Under the new contract, Himax has revised its future requirements of Tape-Carrier-Package/Chip-On-Film ("TCP/COF") with significant increasing numbers of demand to ChipMOS and will shift additional percentage increases of Chip-On-Glass ("COG") business to ChipMOS. ChipMOS Taiwan commits to reserving the required capacity for LCD Driver IC assembly and testing services for Himax until the end of 2008

S.J. Cheng, Chairman and Chief Executive Officer of ChipMOS, said, "Himax is a global leader in the LCD driver IC market and an important strategic customer to ChipMOS. We are pleased to extend our long-term, mutually beneficial relationship. We remain committed to providing the vertically integrated testing and assembly services that have made our relationship a success."

About Himax Technologies Inc. Himax is a fabless driver IC design company founded on June 12, 2001. Headquartered in Tainan (a city in southern Taiwan), Himax has branch offices in Hsinchu and Taipei, with technical support offices in Japan, Korea, and China. As of January 2005, Himax has approximately 350 employees, of which 75% are R&D personnel. Himax designs, develops, and markets complete driver IC solutions for various TFT-LCD applications, including handsets, digital still cameras (DSCs), camcorders, car navigators, portable DVD players, note book computers, monitors, and TVs, including gate drivers, source drivers, timing controllers, and operational amplifiers.

About ChipMOS TECHNOLOGIES (Bermuda) LTD.:
ChipMOS (www.chipmos.com.tw) is a leading independent provider of semiconductor testing and assembly services to customers in Taiwan, Japan, and the U.S. With advanced facilities in Hsinchu and Southern Taiwan Science Parks in Taiwan and Shanghai, ChipMOS and its subsidiaries provide testing and assembly services to a broad range of customers, including leading fabless semiconductor companies, integrated device manufacturers and independent semiconductor foundries.

Forward-Looking Statements
Certain statements contained in this announcement may be viewed as "forward-looking statements" within the meaning of Section 27A of the U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended. Such forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause the actual performance, financial condition or results of operations of the Company to be materially different from any future performance, financial condition or results of operations implied by such forward-looking statements. Further information regarding these risks, uncertainties and other factors is included in the Company's most recent Annual Report on Form 20-F filed with the U.S. Securities and Exchange Commission (the "SEC") and in the Company's other filings with the SEC
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