Research Professor at Hongik Univ. (2024) - WBG Semiconductor Senior VP of Power Electronics BU at LX Semicon (2023) - SiC MOSFET, Power Modules, SiC Epitaxy Chief Technology Officer at PANJIT International (2019-2022) - Si MOSFET/IGBT/FRD, SiC MOSFET/Diode Samsung Electronics / Fairchild Semiconductor / ON Semiconductor (1994-2019): Senior Director in Corporate RD, Si MOSFET/IGBT/FRD, SiC Diode Electrical and Computer Engineering, Ph.D. at Cornell Univ. (2002-2007) - WBG Semiconductor