US 11,725,983 B2
Light receiving device and distance measuring device comprising a circuit to protect a circuit element of a readout circuit from overvoltage
Tatsuki Nishino, Kanagawa (JP)
Assigned to Sony Semiconductor Solutions Corporation, Kanagawa (JP)
Appl. No. 17/912,251
Filed by Sony Semiconductor Solutions Corporation, Kanagawa (JP)
PCT Filed Feb. 20, 2021, PCT No. PCT/JP2021/006513
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2021/192770, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 2020-052503 (JP), filed on Mar. 24, 2020.
Prior Publication US 2023/0145695 A1, May 11, 2023
Int. Cl. G01J 1/44 (2006.01); G01C 3/06 (2006.01); H01L 31/107 (2006.01)
CPC G01J 1/44 (2013.01) [G01C 3/06 (2013.01); H01L 31/107 (2013.01); G01J 2001/442 (2013.01); G01J 2001/4466 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light receiving device comprising:
a light receiving element that generates a signal in response to reception of a photon;
a readout circuit that reads out a signal generated by the light receiving element; and
a protection circuit that is provided between the light receiving element and an input end of the readout circuit and protects a circuit element of the readout circuit from overvoltage.