ChipMOS /Bermuda Continues To Record Patent Success Hsinchu, Taiwan, May 7, 2002 - ChipMOS TECHNOLOGIES (Bermuda) LTD. (Nasdaq: IMOS) ("ChipMOS/Bermuda") announced today that it had ranked 11th for patent certification and 16th for patent registrations in the annual "Top 100" list for 2001 published by the Intellectual Property Office of the Ministry of Economic Affairs (MOEA) in Taiwan.

"ChipMOS has a strong ongoing commitment to technology development so that we can continue to provide leading edge testing and assembly solutions to our customers. We continue to invest above industry average levels of resources to research and development, and the success of this investment is consistently reflected in the high number of patents that we have had registered and certified in the past few years, " said S.J. Cheng, Deputy Chairman and Chief Executive Officer of ChipMOS/Bermuda.

ChipMOS had 111 patents registered and 97patents certified in 2001, ranking it ahead of its key peers, especially in the testing segment of the market. ChipMOS was the only testing company to rank in the MOEA "Top 100" list.

About ChipMOS TECHNOLOGIES (Bermuda) LTD.: ChipMOS/Bermuda is a leading provider of semiconductor testing and assembly services to customers in Taiwan, Japan and the U.S. With advanced facilities in the Hsinchu and Tainan Science-Based Industrial Parks in Taiwan, ChipMOS/Bermuda 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. For more information, please visit its company website at http://www.chipmos.com.tw/