• B.S., Seoul National University, Metallurgical Engineering, 1986

• M.S., Seoul National University, Metallurgical Engineering,1988

• Ph.D., Univeristy of Illinois at Urbana-Champaign, Materials Science and Engineering [Electronic Materials Division], 1996

• 2010.4-now: Sungkyunkwan University, Department of Advanced Materials Science and Engineering, Professor

• 2010.3-now: Sungkyunkwan University, SKKU Advanced Institute of Nanotechnology (SAINT) and Graduate School of Nano Science and Technology, Professor

• 2010.3-now: Sungkyunkwan University, Samsung Advanced Institute for Health Sciences and Technology, SKKU (SAIHST) and Graduate Program for Health Sciences and Technology ), Professor

• 2004.4-2010.3: Sungkyunkwan University, Department of Advanced Materials Science and Engineering, Associate Professor

• 2000.3-2004.3: Sungkyunkwan University, Department of Advanced Materials Science and Engineering, Assistant Professor

• 1998.3-2000.2: Sungkyunkwan University, Department of Advanced Materials Science and Engineering, Senior Lecturer

• 1996.3-1998.2: Lam Research Corporation (USA), Senior Process Engineer

2017.4-now: Editorial board member, Scientific Reports (Nature-Springer)

2016.4-now: International advisory board member, Advanced Materials Technologies (Wiley)

2014.1-now: Editorial board member, Electronic Materials Letters (Nature-Springer)