Dae Woong Kwon1, Jang Hyun Kim1, Wandong Kim1, Sang Wan Kim2,3,1, Jong‐Ho Lee1, Byung‐Gook Park1
1Inter-University Semiconductor Research Center, Seoul National University, Seoul, South Korea
2Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA, USA
3Department of Electronic Engineering, Sogang University, Seoul, South Korea