HSINCHU, Taiwan, April 19 /Xinhua-PRNewswire-FirstCall/ -- ChipMOS TECHNOLOGIES (Bermuda) LTD. ("ChipMOS" or "the Company") (Nasdaq: IMOS - News) today announced that it will hold a conference call with investors and analysts at 7:00PM EST on May 9, 2005 to discuss its first quarter 2005 financial results and the management's outlook for the second quarter 2005. The news release announcing the first quarter 2005 results will be disseminated after 4:00PM EST on May 9, 2005. The call may be accessed by dialing 1-913-981-4901 and referencing confirmation code 4863938. The playback will be available approximately three hours after the conclusion of the conference call and will be accessible by dialing 1-719-457-0820 and referencing confirmation code 4863938. The Company will also webcast the conference call live on its website http://www.chipmos.com.tw . About ChipMOS TECHNOLOGIES (Bermuda) LTD.:

ChipMOS ( http://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.

Contact:

In Taiwan R.O.C. Dr. S.K. Chen ChipMOS TECHNOLOGIES (Bermuda) LTD. Tel: +886-6-507-7712 Email: s.k._chen@chipmos.com.tw

In the U.S. David Pasquale The Ruth Group Tel: +1-646-536-7006 Email: dpasquale@theruthgroup.com