US 12,408,458 B2
Photoelectric conversion element and light receiving device
Hisashi Akiyama, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 17/250,329
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
PCT Filed Jun. 14, 2019, PCT No. PCT/JP2019/023612
§ 371(c)(1), (2) Date Jan. 5, 2021,
PCT Pub. No. WO2020/017203, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 2018-133913 (JP), filed on Jul. 17, 2018.
Prior Publication US 2021/0351217 A1, Nov. 11, 2021
Int. Cl. H10F 39/00 (2025.01); G02B 5/30 (2006.01); H10F 39/18 (2025.01)
CPC H10F 39/8063 (2025.01) [G02B 5/3058 (2013.01); H10F 39/8053 (2025.01)] 15 Claims
OG exemplary drawing
 
1. A light receiving device, comprising:
a plurality of photoelectric conversion element units, wherein
each photoelectric conversion element unit of the plurality of photoelectric conversion element units includes a plurality of photoelectric conversion elements,
the plurality of photoelectric conversion element units includes a first photoelectric conversion element unit,
each photoelectric conversion element of the plurality of photoelectric conversion elements of the first photoelectric conversion element unit includes a quarter wavelength layer, a wire grid polarizer, and a photoelectric conversion section in this order from a light entrance side of the quarter wavelength layer, and
the wire grid polarizer includes a light absorption layer, an insulation film, and a light reflection layer.