1. School
of Electrical Engineering, 291 Daehak-ro, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
2. Semiconductor R&D Center, Samsung Electronics, Hwasung 18448, Korea
3. System
LSI Division, Samsung Electronics, Samsung-ro 1, Yongin-City, Gyeonggi-do, Korea
4. SK Hynix Inc., 2091 Gyeongchung-daero, Bubal-eub, Icheon-si, Gyeonggi-do, Korea