CPC H01L 27/14645 (2013.01) [H01L 27/1463 (2013.01); H01L 27/1464 (2013.01); H01L 27/14612 (2013.01); H01L 27/14621 (2013.01); H01L 27/14623 (2013.01); H01L 27/14627 (2013.01); H01L 27/14629 (2013.01); H01L 27/14632 (2013.01); H01L 27/14636 (2013.01); H01L 27/14685 (2013.01); H01L 27/14687 (2013.01); H01L 31/0216 (2013.01); H01L 31/18 (2013.01); H04N 25/62 (2023.01); H01L 21/7806 (2013.01); H01L 31/02162 (2013.01); H01L 31/1804 (2013.01); Y02P 70/50 (2015.11)] | 20 Claims |
1. A light detecting device, comprising:
a semiconductor substrate including a first side as a light incident side and a second side opposite to the first side;
photoelectric conversion regions disposed in the semiconductor substrate;
an element isolation region disposed in the semiconductor substrate,
wherein the photoelectric conversion regions are separated by the element isolation region, and
wherein the element isolation region includes a p-type semiconductor region;
a wiring layer disposed under the second side of the semiconductor substrate; and
a metal film disposed above the first side of the semiconductor substrate,
wherein the metal film contacts the p-type semiconductor region in an optical black level region disposed in the semiconductor substrate.
|