A 1/4-inch 8Mpixel back-illuminated stacked CMOS image sensor. - Shunichi Sukegawa; Taku Umebayashi; Tsutomu Nakajima; Hiroshi Kawanobe; Ken Koseki; Isao Hirota; Tsutomu Haruta; Masanori Kasai; Koji Fukumoto; Toshifumi Wakano; Keishi Inoue; Hiroshi Takahashi; et al. (ISSCC, 2013)