Weiheng Chang is a Senior Engineering Manager in Skyworks Solutions, Inc. at Newbury Park, California, USA. He received his Ph.D. in Electrical Engineering from University of Illinois, Urbana-Champaign in 1996. He joined Rockwell Science Center as Research Scientist in 1996 and conducted R&D in III-V high-speed integrated circuits and CMOS RF circuits. Since 2008, he has been with Skyworks Solutions, Inc. focusing on development of cellular front-end RFIC for handset applications with integrated PA and LNA. Weiheng’s expertise span across RF, analog, and mixed-signal IC designs in technologies of III-V HBT, pHEMT, CMOS, SiGe, and SOI.