Amkor Technology, Inc., one of the leading providers of semiconductor assembly and test services to semiconductor companies and electronics OEMs, said on Friday that the International Trade Commission has reversed a finding by the Administrative Law Judge on the issue of whether a certain invention constitutes prior art to Amkor's asserted patents in its patent infringement case against Carsem.

The Commission remanded the investigation to Administrative Law Judge to make further findings in light of the Commission's ruling by March 22, 2010, and extended the target date for completion of the investigation to July 20,
2010.

Ken Joyce, Amkor's President and Chief Executive Officer, said, “Although disappointed with the delay, we are confident that Amkor's technology and patent rights for MicroLeadFrame (R) packaging solutions ultimately will be validated”.

Amkor is a leading provider of semiconductor assembly and test services to semiconductor companies and electronics OEMs.