Patent ID: 11927478
Assignee: HAMAMATSU PHOTONICS K.K.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A light detection device, comprising:
a light detection unit including at least one avalanche photodiode, a plurality of temperature compensation diodes configured to provide temperature compensation for a gain of the at least one avalanche photodiode, and a terminal electrically connecting the at least one avalanche photodiode and the plurality of temperature compensation diodes in parallel with each other,
wherein the light detection unit has a light detection region in which the at least one avalanche photodiode is provided, a first temperature detection region which is located around the light detection region and in which at least one of the plurality of temperature compensation diodes is provided, and a second temperature detection region which is located around the light detection region and in which the rest of the plurality of temperature compensation diodes excluding the at least one temperature compensation diode is provided, and
the light detection region is interposed between the first temperature detection region and the second temperature detection region.