Seongcheol Kim's paper is accepted for IEEE Journal of Solid Stat
   Hyunjin Kim's paper is accepted for IEEE Journal of Solid State C
   Seongcheol Kim's paper is accepted for IEEE Journal of Solid Stat
   Taehyeong Park's paper is accepted for IEEE Transactions on Circu
   Yohan Choi's paper is accepted for IEEE Transactions on Circuits