0000893220-04-001134 S-4/A 3 20040528 AMKOR TECHNOLOGY INC 0001047127 3674 231722724 DE 1231 S-4/A 33 333-115821 04839111 1345 ENTERPRISE DR WEST CHESTER PA 19380 6104319600 1345 ENTERPRISE DR WEST CHESTER PA 19380 S-4/A 1 w97741asv4za.htm FORM S-4/A EX-5.1 2 w97741aexv5w1.htm OPINION OF WILSON SONSINI GOODRICH & ROSATI P.C. EX-8.1 3 w97741aexv8w1.htm OPINION OF WILSON SONSINI GOODRICH & ROSATI P.C.