US 11,719,908 B2
Image sensor and image capturing apparatus
Mie Ishii, Tokyo (JP); and Ken Sasaki, Tokyo (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Oct. 11, 2022, as Appl. No. 17/963,612.
Application 17/963,612 is a continuation of application No. 17/329,608, filed on May 25, 2021, granted, now 11,493,729.
Application 17/329,608 is a continuation of application No. 16/596,086, filed on Oct. 8, 2019, granted, now 11,048,063, issued on Jun. 29, 2021.
Application 16/596,086 is a continuation of application No. 15/750,547, granted, now 10,514,526, issued on Dec. 24, 2019, previously published as PCT/JP2016/003900, filed on Aug. 26, 2016.
Claims priority of application No. 2015-183246 (JP), filed on Sep. 16, 2015; application No. 2015-183247 (JP), filed on Sep. 16, 2015; and application No. 2016-144756 (JP), filed on Jul. 22, 2016.
Prior Publication US 2023/0037107 A1, Feb. 2, 2023
Int. Cl. G02B 7/34 (2021.01); G03B 13/36 (2021.01); H04N 23/61 (2023.01); H04N 23/67 (2023.01); H04N 23/63 (2023.01); H04N 25/77 (2023.01); H04N 25/445 (2023.01); H04N 25/702 (2023.01); H04N 25/704 (2023.01); H04N 25/778 (2023.01); H04N 23/611 (2023.01)
CPC G02B 7/34 (2013.01) [G03B 13/36 (2013.01); H04N 23/61 (2023.01); H04N 23/631 (2023.01); H04N 23/67 (2023.01); H04N 23/672 (2023.01); H04N 23/675 (2023.01); H04N 25/445 (2023.01); H04N 25/702 (2023.01); H04N 25/704 (2023.01); H04N 25/77 (2023.01); H04N 25/778 (2023.01); H04N 23/611 (2023.01)] 14 Claims
OG exemplary drawing
 
1. An image sensor comprising:
a pixel portion in which a plurality of unit pixels each having one micro lens and a plurality of photoelectric conversion portions are arrayed in a matrix;
a signal holding portion configured to hold signals corresponding to electric charges accumulated in a part of the photoelectric conversion portions among the plurality of photoelectric conversion portions in each of the unit pixels and signals corresponding to electric charges obtained by combining electric charges accumulated in all of the photoelectric conversion portions in each of the unit pixels;
an output portion configured to output signals based on the signals corresponding to electric charges accumulated in the part of the photoelectric conversion portions among the plurality of photoelectric conversion portions in each of the unit pixels and signals based on signals corresponding to electric charges obtained by combining electric charges accumulated in all of the photoelectric conversion portions in each of the unit pixels, the signals being held in the holding portion,
wherein the pixel portion is formed on a first semiconductor substrate and the signal holding portion is formed on a second semiconductor substrate different from the first semiconductor substrate, and
wherein the first semiconductor substrate and the second semiconductor substrate are stacked with each other.