SAN JOSE, California, June 20, 2003
hynix Semiconductor Inc., a leading worldwide semiconductor foundry, announces that ON Semiconductor, Inc. has signed a multi-year, renewable agreement establishing hynix as a volume supplier of CMOS manufacturing services.

Under terms of the agreement, hynix will supply production support to ON Semiconductor for their Power Management products. “hynix’s cost-conscious business model and advanced manufacturing services will help On Semiconductor expand its leadership position in the Power Management revolution,” said Ramesh Ramchandani, vice president and general manager of Integrated Power Devices Division, On Semiconductor.

“This agreement with On Semiconductor is an important milestone in our strategy to grow our foundry services business and to deliver premier products to customers today and into the future,” said Channy Lee, vice president & general manager of foundry business unit for hynix. “On Semiconductor is a market leader of integrated power devices. Our semiconductor manufacturing services expertise will help On Semiconductor expand its leadership position into the consumer, PC and Industrial markets by offering On Semiconductor cost savings and easier design flexibility.”