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US 10,833,207 B2Granted
Photo-detection device, photo-detection system, and mobile apparatus
AssigneeCanon Kabushiki Kaisha
InventorJunji Iwata
Life of this patent
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Abstract
Provided is a photo-detection device including: a plurality of avalanche diodes; a quench element configured to suppress avalanche multiplication in the plurality of avalanche diodes; and a pixel signal processing unit configured to process a signal obtained by summing signals output from respective ones of the plurality of avalanche diodes. The quench element the number of which is one is connected to the plurality of avalanche diode in series.
Claims14
A photo-detection device comprising:
- a plurality of avalanche diodes;
- a quench element configured to suppress avalanche multiplication in the plurality of avalanche diodes;
- and
- a pixel signal processing unit configured to process a signal obtained by summing signals output from respective ones of the plurality of avalanche diodes,
- wherein the quench element, the number of which is one, is connected to the plurality of avalanche diodes in series,
- wherein the plurality of avalanche diodes and the quench element are formed on the same substrate, and
- wherein the quench element is arranged between two avalanche diodes of the plurality of avalanche diodes in a plan view from a direction perpendicular to the substrate.
4 more elements
A photo-detection device comprising:
- a plurality of avalanche diodes;
- a quench element configured to suppress avalanche multiplication in the plurality of avalanche diodes;
- and
- a pixel signal processing unit configured to process a signal obtained by summing signals output from respective ones of the plurality of avalanche diodes,
- wherein the quench element, the number of which is one, is connected to the plurality of avalanche diodes in series, and
- wherein first regions each including one of the plurality of avalanche diodes and a second region including the quench element are arranged in a matrix on the substrate to form rows and columns.
3 more elements
A photo-detection device comprising:
- a plurality of avalanche diodes;
- a quench element configured to suppress avalanche multiplication in the plurality of avalanche diodes;
- and
- a pixel signal processing unit configured to process a signal obtained by summing signals output from respective ones of the plurality of avalanche diodes,
- wherein the quench element, the number of which is one, is connected to the plurality of avalanche diodes in series,
- wherein the plurality of avalanche diodes are formed on a first substrate, and
- wherein the quench element is formed on a second substrate that is different from the first substrate.
4 more elements
Dependencies are inferred from the claim text.