ITC Reaffirms Ruling that Carsem Infringes Amkor MLF Patent.

CHANDLER, Ariz. -- Amkor Technology, Inc. (NASDAQ: AMKR) today announced that the Administrative Law Judge ("ALJ") in Amkor's patent infringement case against Carsem in the International Trade Commission has reaffirmed his prior ruling that the Carsem Dual and Quad Flat No-Lead Packages infringe some of Amkor's patent claims relating to MicroLeadFrame([R]) (MLF) technology, that all of Amkor's asserted patent claims are valid, and that Carsem violated Section 337 of the Tariff Act.

"We are pleased that the ALJ has again validated Amkor's technology and patent rights for our MLF packaging solutions," said Ken Joyce, Amkor's President and Chief Executive Officer. "We will now be taking steps under ITC procedures for a ruling by the Commission upholding or adopting the ALJ's decision and issuing an exclusion order that would prohibit Carsem from importing its infringing QFN products into the United States."

About Amkor

Amkor is a leading provider of semiconductor assembly and test services to semiconductor companies and electronics OEMs. More information on Amkor is available from the company's SEC filings and on Amkor's website: www.amkor.com.

Forward-Looking Statement Disclaimer

This press release contains forward-looking statements within the meaning of federal securities laws. All statements other than statements of historical fact are considered forward-looking statements including, without limitation, statements regarding the affirmation of the ALJ's decision by the Commission and the issuance of an exclusion order against Carsem. These forward-looking statements involve a number of risks, uncertainties, assumptions and other factors that could affect future results and cause actual results and events to differ materially from historical and expected results and those expressed or implied in the forward-looking statements. Important risk factors that could affect the outcome of the events set forth in these statements and that could affect our operating results and financial condition are discussed in our Annual Report on Form 10-K for the year ended December 31, 2008 and in our subsequent filings with the Securities and Exchange Commission made prior to or after the date hereof. Amkor undertakes no obligation to review or update any forward-looking statements to reflect events or circumstances occurring after the date of this press release.