US 11,695,023 B2
Photoelectric conversion apparatus and imaging system
Shoji Kono, Tokyo (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Oct. 13, 2021, as Appl. No. 17/500,481.
Claims priority of application No. 2020-176076 (JP), filed on Oct. 20, 2020.
Prior Publication US 2022/0123034 A1, Apr. 21, 2022
Int. Cl. H01L 27/146 (2006.01); H04N 23/67 (2023.01); H04N 25/59 (2023.01)
CPC H01L 27/14607 (2013.01) [H01L 27/14605 (2013.01); H01L 27/14612 (2013.01); H01L 27/14627 (2013.01); H01L 27/14645 (2013.01); H04N 23/672 (2023.01); H04N 25/59 (2023.01)] 26 Claims
OG exemplary drawing
 
1. An apparatus comprising:
pixels including a first pixel and a second pixel; and
a plurality of microlenses,
wherein each of the pixels has a first conversion unit and a second conversion unit surrounding the first conversion unit,
wherein the first conversion unit and the second conversion unit each have a light portion to receive light from a corresponding microlens,
wherein the first conversion unit and the second conversion unit are under the corresponding microlens, and
wherein a first area ratio between an area of the light portion of the first conversion unit in the first pixel and an area of the light portion of the second conversion unit in the first pixel is different from a second area ratio between an area of the light portion of the first conversion unit in the second pixel and an area of the light portion of the second conversion unit in the second pixel.