• Professor 

  • Dept. of Semiconductor Engineering

  • Seoul National University of Science & Technology, Seoul, Korea

  • 02/2022-present

• Professor

  • Graduate School of Nano-IT-Design (NID) Fusion

  • Seoul National University of Science & Technology, Seoul, Korea

  • 09/2007-02/2022

• Dean of NID Graduate School

  • NID Graduate School, Seoul National University of Science & Technology, Seoul, Korea

  • 08/2014-01/2016

• Technical Advisor

  • Coretek Inc, Seoul, Korea

  • 12/2010-05/2014

• Technical Advisor

  • Ateko Inc, Seoul, Korea

  • 12/2010-05/2014

• Founder

  • Xerochem Inc., Seoul, Korea

  • 12/2008-05/2014

• Principal Eng.

  • SAMSUNG ELECTRONICS, LCD R&D Center, Kiheung, S.Korea

  • 10/2006-08/2007

• CTO/Founder

  • Master Solution Inc. Vancouver, BC, CANADA

  • 10/2001-06/2006

• Visiting Professor

  • ECE, Univ. of British Columbia,Vancouver, BC, CANADA

  • 08/2001-02/2003

• Visiting Professor

  • ECE, Virginia PolyTech., Blacksburg, VA, USA

  • 01/2001-07/2001

• Visiting Professor

  • ECE, Univ. of Utah, Salt Lake City, Utah, USA

  • 06/1999-09/1999

• Professor

  • School of Applied Science. Nanyang Technological University, SINGAPORE

  • 02/1998-02/2001

• Research Eng.II

  • PRC,Georgia Institute of Technology,Atlanta, GA, USA

  • 01/1997-12/1997

• Research Eng. (including Ph.D. Internship)

  • SPDC,Texas Instruments Inc. Dallas, TX, USA

  • 06/1994-12/1996

• Research Assistant

  • CIE Rensselaer Polytechnic Institute, Troy, NY, USA

  • 05/1993-09/1996

• Research Assistant

  • Materials Dept. Columbia Univ., NYC, NY. USA

  • 01/1992-05/1993