Impact of Well Edge Proximity Effect on Timing. - Toshiki Kanamoto; Yasuhiro Ogasahara; Keiko Natsume; Kenji Yamaguchi; Hiroyuki Amishiro; Tetsuya Watanabe; Masanori Hashimoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008)