US 12,323,686 B2
Light-receiving device, imaging device, and distance measurement device
Kyosuke Ito, Kanagawa (JP); and Yusuke Otake, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Filed on Dec. 6, 2023, as Appl. No. 18/531,446.
Application 18/531,446 is a continuation of application No. 17/594,108, granted, now 11,849,200, previously published as PCT/JP2020/012220, filed on Mar. 19, 2020.
Claims priority of application No. 2019-076106 (JP), filed on Apr. 12, 2019.
Prior Publication US 2024/0107142 A1, Mar. 28, 2024
Int. Cl. H04N 23/52 (2023.01); G01S 7/481 (2006.01); H04N 23/65 (2023.01)
CPC H04N 23/52 (2023.01) [G01S 7/4816 (2013.01); H04N 23/65 (2023.01)] 15 Claims
OG exemplary drawing
 
1. A light-receiving device, comprising:
a pixel array including a plurality of light-receiving elements, wherein
the plurality of light-receiving elements are in respective pixels,
each light-receiving element of the plurality of light-receiving elements includes a high electric field region and a photoelectric conversion region,
the plurality of the light-receiving elements in the respective pixels includes a plurality of types of light-receiving elements that have a plurality of temperature regions,
each temperature region of the plurality of temperature regions has a high photon detection efficiency (PDE), and
a first temperature region of the plurality of temperature regions is different from a second temperature region of the plurality of temperature regions, and
the first temperature region and the second temperature region partially overlap with each other; and
a power supply section configured to apply a negative bias voltage to each light-receiving element of the plurality of light-receiving elements.