1. Department of Electronic EngineeringSejong University 209, Neungdong‐ro, Gwangjin‐gu Seoul 05006 Republic of Korea
2. Hur Advanced Research 96, Dongtanbanseok‐ro Hwasung‐si Gyeonggi‐do 18456 Republic of Korea
3. Process Development TeamSemiconductor R&D CenterSamsung Electronics Co., Ltd San 16, Banwol‐Dong Hwasung‐si Gyeonggi‐do 447‐701 Republic of Korea