Doctor of Philosophy cum laude in Electrical Engineering, Georgia Institute of Technology, Atlanta, 2004.
Senior researcher Korea Electronics Technology Institute, Seongnam, Republic of Korea, since 2004. Secretary TC47 semiconductor devices International Electrotechnical Commission, Geneva, since 2007. Researcher Packaging Research Center, Atlanta, 2000—2003.
Reviewer International Trade Commission-CSCC. Sergeant Korean Army, 1992-1994, Korea.
Leader voluntary services World Vision, Seoul, 1994—1996. Secretary technical committee International Electrotechnical Commission, Geneva, 2007. Master: Munggi University (Best Mentor 2007).
Married Song Eunjung, May 28, 2005. 1 child Cha Dong Hyun.