1.國立中興大學客座專家 (2021/02~迄今)
2.國立交通大學客座專家 (2019/02~2021/01)
3.國立中興大學客座專家 (2017/02~2019/01)
4.Synopsys Corp., Member of Technical Staff, R&D Director (2012/07~2016/06)
5.Ciranova Corp., CTO. (2006/01~2002/07)
6.SynCira Corp., Co-Founder (2003/07~2005/12)
7.Agere Systems, Distinguished Member of Technical Staff, R&D Manger (2001/04~2003/06)
8.TDK Semiconductor Corp., Principal Engineer, R&D Group Leader (1999/04~2001/04)