Aug 14, 2003

ChipMOS Taiwan Signs Assembly and Testing Agreements with Renesas

ChipMOS Taiwan Signs Assembly and Testing Agreements with RenesasHsinchu, Taiwan, Aug 11, 2003 - ChipMOS TECHNOLOGIES (Bermuda) LTD. (Nasdaq: IMOS) ("ChipMOS Bermuda") today announced that its 70% owned subsidiary, ChipMOS TECHNOLOGIES INC. ("ChipMOS"), signed agreements in March with Mitsubishi Electric Corporation to provide wafer test service and IC assembly and test service. The agreements was consented to Renesas Technology Corporation ("Renesas").

Renesas' wafer test service order specified Mobile Memory. The wafers will be tested on ChipMOS' T5371 Advantest testing equipment and will be used on handheld electronics as end applications. On the other hand, the IC assembly and test agreement specified Low Power Memory. These ICs will be packaged by ChipMOS' TSOP package solution. The end use of these ICs is mainly for graphic applications.

S.J. Cheng, deputy chairman and chief executive officer of ChipMOS Bermuda, said, " Renesas is a recognized world leader of integrated device manufacturer. It is our pleasure to have a partner like them. ChipMOS is committed to providing advanced technology and prompt service to help Renesas accomplish its future success."

Mr. Cheng continued, " Renesas has been very prudent in partner selection. They took over half a year to complete the qualification of ChipMOS. The signing of the agreements signified the well recognition of ChipMOS' technology and capability by Renesas and that is the basis of long-term partnership for both parties."

ChipMOS has kept efforts on developing Japanese market in recent years. It currently has customers of world-class Japanese companies like OKI, AKM, Toshiba, Sharp, TI Japan and Elpida. Obtaining new customers like Renesas will further expand our reach in Japan and will further realize our goal of globalization.

About Renesas Technology Corporation

Renesas was established on April 1, 2003 out of merger of the semiconductor divisions of Hitachi, Ltd and Mitsubishi Electric Corp. Renesas is a recognized world leader in the development, design, manufacture, sales and servicing of system LSIs, including microcomputers, logic and analog devices, discrete devices and memory products, including flash memory and SRAM. For information about Renesas Technology Corp., visit http:// www. renesas.com

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