New Amkor M-WeST Test System Significantly Reduces Cost for Testing RF Modules

Amkor Technology, Inc. (Nasdaq: AMKR) announces an automated multi-site wireless LAN system tester capable of testing WLAN 802.11 (a/b/g/n), WiMax 802.16, Zigbee, BT, and GPS. This tester integrates an off-the-shelf one-box-tester (OBT) for wireless standard conformance testing with power supplies, multimeter and PC control via any standard PC interface. The M-WeST (Multi-site Wireless enhanced System Test) module can dock to any standard ATE test handler for up to quad-site testing. Automated parallel testing reduces the cost of system-level testing and product time to market.

Additional benefits of the M-WeST module include: a "zero footprint,” fitting conveniently under standard pick and place handlers; unique RF shielding which provides isolation between sites, ensuring more accurate test results; and extendibility to other RF system level test such as GPRS/EDGE or 3G/3.9G cellular.

"The M-WeST module can significantly reduce the cost of RF system-level testing,” said Seyed Paransun, senior vice-president of Amkor’s test group. "We kept our system development cost low and reduced time to market by using existing WLAN system testers, which allows us to offer lower acquisition and test costs to our customers.”

About Amkor:

Amkor Technology, Inc. (Nasdaq: AMKR) is a leading provider of semiconductor assembly and test services. The company offers semiconductor companies and electronics OEMs a complete set of microelectronic design and manufacturing services. More information on Amkor is available from the company's SEC filings. Additional technical information on M-WeST can be found on: 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 cost reductions associated with the M-WeST system, the accuracy of test results using the M-WeST system and extension of the technology to other types of RF system tests. Important risk factors that could affect the outcome of the events set forth or implied in these statements and that could affect our operating results and financial condition are discussed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2008 and in the Company’s 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.