• 2Q07 Revenue Increases 22.2% Compared to 2Q06
• 2Q07 Gross Margin Improves to 27.6%
• First Half 2007 Capex of US$109.3 Million vs US$249.2 Million in First Half of 2006

Hsinchu, Taiwan, August 15, 2007 - ChipMOS TECHNOLOGIES (Bermuda) LTD. ("ChipMOS" or the "Company") (NASDAQ: IMOS) today reported unaudited consolidated financial results for the second quarter ended June 30, 2007. All U.S. dollar figures in this release are based on the exchange rate of NT$32.86 against US$1.00 as of June 29, 2007.

Net revenue for the second quarter of 2007 was NT$5,833.5 million or US$177.5 million, an increase of 22.2% from NT$4,774.7 million or US$145.3 million for the same period in 2006 and an increase of 1.9% from NT$5,723.0 million or US$174.2 million in the first quarter of 2007. Under US GAAP, the gross margin for the second quarter of 2007 was 27.6%, compared to 28.5% for the same period of 2006 and 27.2% for the first quarter of 2007. Under US GAAP, net income for the second quarter of 2007 was NT$135.4 million or US$4.1 million, and NT$1.63 or US$0.05 per basic common share, compared to NT$265.7 million or US$8.1 million, and NT$3.74 or US$0.11 per basic common share, for the first quarter of 2007. Net income under US GAAP included non-cash charges for changes in the fair value of the embedded derivative liabilities and amortization of discount on convertible notes of NT$236.5 million or US$7.2 million for the second quarter of 2007 and NT$102.9 million or US$3.1 million for the first quarter of 2007. Excluding the above special items regarding the convertible notes, non-GAAP adjusted net income for the second quarter of 2007 was NT$371.9 million or US$11.3 million, and NT$4.49 or US$0.14 per basic common share, compared to non-GAAP adjusted net income of NT$368.6 million or US$11.2 million, and NT$5.18 or US$0.16 per basic common share in the first quarter of 2007.

The unaudited consolidated financial results of ChipMOS for the second quarter ended June 30, 2007 included the financial results of ChipMOS TECHNOLOGIES INC., ChipMOS Japan Inc., ChipMOS U.S.A., Inc., ChipMOS TECHNOLOGIES (H.K.) Limited, MODERN MIND TECHNOLOGY LIMITED and its wholly-owned subsidiary ChipMOS TECHNOLOGIES (Shanghai) LTD., and ThaiLin Semiconductor Corp.

S.J. Cheng, Chairman and Chief Executive Officer of ChipMOS, said, "We are pleased with our performance in the second quarter. Our leadership position and long-term customer contracts helped us navigate the market's volatility. Despite continued pricing pressure in DRAM products, we achieved revenue growth on both a sequential and year-over-year basis, and expanded our gross margin to 27.6%. Our overall utilization rate improved to 80%. We currently expect further increases as we move into the second half of the year. However, the pricing pressure from DRAM businesses as well as TCP (Tape Carrier Package) services due to LCD driver technology migration to COF (Chip On Film) and COG (Chip On Glass) is expected to continue, which will partially offset the effects of our expected higher utilization. Though the short testing time, we have seen recovery of DDR II volume in August. DDR II volume is currently expected to increase month over month as the 70nm wafer manufacturing technology matures. The overall DRAM pricing pressure in the second half of 2007 has lessened as compared to the first half since certain portion of DRAM wafer capacity in the market has been allocated for NAND flash production by memory makers after the recent shortage of NAND supply. The decreased supply following the stronger DRAM demand in the second half of 2007 is currently expected to help resolve the over supply situation in the first half and gradually reduce our price pressure going forward."

S.K. Chen, Chief Financial Officer of ChipMOS, said, "There was very little change in the second quarter from the prior quarter in terms of revenue by segment. This reflects the improvement we are seeing in the important LCD driver market and healthy DDR and DDR II demand. We think there is considerable room for growth in these segments based on indications from our customers and market forecasts. From a geographic standpoint, we continue to see more and more content moving out of Japan and into Taiwan due to the growing presence and strength of our local manufacturing and supply chain. Importantly, our capex for the first half of 2007 came in at US$109.3 million. This compares to US$249.2 million in the first half of 2006. We are diligently managing our capex and following strict cost controls as we work to improve profitability and shareholder value."

Third Quarter 2007 Outlook

Based on current customer forecasts and market conditions, ChipMOS currently expects that revenue for the third quarter of 2007 will be in the range of approximately US$178 million to US$185 million, which would represent flat to approximately 4% sequential growth compared to the second quarter of 2007. The Company currently expects US GAAP gross margin on a consolidated basis for the third quarter of 2007 to be in the range of approximately 23% to 27%, reflecting decreasing DDR I SDRAM testing business from Hynix and price pressure from TCP and other DRAM businesses.

Mr. Cheng commented, "We are currently very optimistic about our prospects for the second half of 2007. The expected significant increase in DDR II output from our DRAM customers especially in the fourth quarter will be the major growth driver in the second half. Flash memory also expected to be strong reflecting a combination of market fundamentals and the mix of our customers. In terms of the fourth quarter, we currently expect it will be much stronger than the third quarter based on customer forecast and favorable end market conditions. We will continue to seek leverage of available capacity as we aim to profitably grow our revenue base, while maximizing our return from prior investments and keeping new investments as low as possible. At the same time, while we commit to providing the outstanding support to our customers who have come to rely on ChipMOS, we also remain committed to keeping new investments as low as possible as we work to deliver improved profitability."

Investor Conference Call / Webcast Details

ChipMOS will review detailed second quarter 2007 results on Wednesday, August 15, 2007 at 7:00PM ET (7:00AM, August 16, Taiwan time). The conference call-in number is 1-201-689-8562. A live webcast of the conference call will be available at ChipMOS' website at http://www.chipmos.com/. The playback will be available in 2 hours after the conclusion of the conference call and will be accessible by dialing 1-201-612-7415. The account number to access the replay is 3055 and the confirmation ID number is 248166.

About ChipMOS TECHNOLOGIES (Bermuda) LTD.:

ChipMOS (http://www.chipmos.com/) 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.

Use of Non-GAAP Information

Readers are reminded that non-GAAP numbers contained in this announcement are merely a supplement to, and not a replacement for, the GAAP financial measures. These non-GAAP numbers should be read in conjunction with the US GAAP financial measures. It should be noted as well that the non-GAAP information provided in this announcement may be different from the non-GAAP information provided by other companies.

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Contacts:

In Taiwan
Dr. S.K. Chen
ChipMOS TECHNOLOGIES (Bermuda) LTD.
+886-6-507-7712
s.k._chen@chipmos.com

In the U.S.
David Pasquale
The Ruth Group
646-536-7006
dpasquale@theruthgroup.com