"We believe that Amkor once again is in violation of its contract," stated Henry R. Nothhaft, president and chief executive officer, Tessera. "We have already begun proceedings to determine the extent of their actions and will take the necessary steps to protect our innovation and technology, our shareholders, and our licensees."

Tessera's intellectual property has been upheld repeatedly in court and private arbitration proceedings. Last year, an arbitration panel required Amkor to pay Tessera more than $60 million based on Amkor's prior breaches of its license. Tessera's action against certain companies in the International Trade Commission (ITC), Inv. No. 337-605, was recently completed, subject to appeals, with findings that Tessera's patents were valid and enforceable. The importation of certain unlicensed products using Tessera's intellectual property is currently prohibited by the U.S. government, and violations of the ITC's orders may carry penalties of up to $100,000 per day.

Safe Harbor Statement

This press release contains forward-looking statements, which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve risks and uncertainties that could cause actual results to differ significantly from those projected, particularly with respect to Tessera's litigation strategies, procedural schedules, and the actions of government entities.