Amkor Technology

Amkor Technology, Inc. is a semiconductor product packaging and test services provider. The company has been headquartered in Tempe, Arizona, since 2005, when it was moved from West Chester, Pennsylvania. The company was founded in 1968 and, as of 2017, had approximately 29,300 employees worldwide and a reported $4.19 billion in sales.
With factories in China, Japan, Korea, Malaysia, Philippines, Portugal and Taiwan, Amkor is a leading player in the semiconductor industry. It packages and tests integrated circuits (ICs) for chip manufacturers.
In February 2016, Amkor fully acquired J-Devices Corp., the largest outsourced semiconductor assembly and test provider in Japan.
In June 2017, Amkor Technology was recognized as Supplier of the Year for 2016 by Qualcomm Technologies for a second consecutive year. 
Amkor Technology has competitiveness for chip assembly by thermal compression as well as wafer level packaging. In September 2018, Amkor Technology opened manufacturing and test plant at Longtan Science Park in Taiwan.