US 12,255,213 B2
Photoelectric conversion element, photodetector, photodetection system, electronic apparatus, and mobile body
Hideaki Togashi, Kanagawa (JP); Tetsuji Yamaguchi, Kanagawa (JP); Nobuhiro Kawai, Kanagawa (JP); Koji Sekiguchi, Kanagawa (JP); Masahiro Joei, Kanagawa (JP); Kenichi Murata, Kanagawa (JP); Shintarou Hirata, Tokyo (JP); Yuta Hasegawa, Kanagawa (JP); and Yoshito Nagashima, Nagasaki (JP)
Assigned to Sony Semiconductor Solutions Corporation, Kanagawa (JP)
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Filed on Sep. 19, 2023, as Appl. No. 18/370,191.
Application 18/370,191 is a continuation of application No. 17/618,953, granted, now 11,817,466, previously published as PCT/JP2020/023712, filed on Jun. 17, 2020.
Claims priority of provisional application 62/864,907, filed on Jun. 21, 2019.
Prior Publication US 2024/0006426 A1, Jan. 4, 2024
Int. Cl. H01L 27/146 (2006.01)
CPC H01L 27/14605 (2013.01) [H01L 27/14621 (2013.01); H01L 27/14623 (2013.01); H01L 27/14627 (2013.01); H01L 27/14638 (2013.01); H01L 27/14649 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A light detecting device, comprising:
a first section comprising:
a photoelectric conversion region disposed in a semiconductor substrate;
a conductor disposed adjacent to the photoelectric conversion region and configured to receive a potential; and
a metal layer surrounding the conductor in a plan view;
a first insulating layer between the conductor and the metal layer;
a second insulating layer between the metal layer and the photoelectric conversion region; and
a fixed charge layer between the second insulating layer and the photoelectric conversion region in the plan view.