Professor

▶ 2020-Present Professor

              Dept. of Electronic Engineering, Gachon University

           Dean

                   College of Semiconductor                 

           Director

           Gachon Advanced Institute of  Semiconductor Technology (GAIST), Gachon University

 Director

           System Semiconductor Industry-coupled Collaboration Center (SSICC), Gachon University

▶ 2011-2020  Professor

            Dept. of Semiconductor Engineering, Cheongju University

         Director

         Research Institute of Advanced Semiconductor Convergence Technology, Cheongju University

               2017  Vice President (KIEEME)

             The Korea Institute of Electrical and Electronics Materials Engineering

     2014  Vice President (KIEEME)

                The Korea Institute of Electrical and Electronics Materials Engineering

▶ 2007 – 2011 Principal Research Scientist

KIST (Korea Institute of Science and Technology)

Electronic Materials Research Center

▶ 2008 – 2011 Professor  (Adjunct)

UST(University of Science and Technology)

Nanoelectronics Engineering

▶ 2006 – 2007 Professor (tenured)

Yonsei University, Dept. of ECE

▶ 2000 – 2005 Asssociate Professor(tenured)

Yonsei University, Dept. of ECE

▶ 1995 – 2000 Assistant Professor

Yonsei University, Dept. of ECE

▶ 2002 – 2003 Visiting Scholar

Los Alamos National Lab (USA)

Electronic Device Team

▶ 1993 – 1995 Senior Research Scientist

Electronic and Telecommunication Research Institute (ETRI)

Dept. of Basic Research Science

▶ 1992 – 1993 Research Associate

State University of New York at Buffalo (USA)