公开(公告)号：US20230358607A1

公开(公告)日：2023-11-09

申请号：US18223277

申请日：2023-07-18

Applicant: Hamamatsu Photonics K.K.

Inventor： Takuya FUJITA ,  Yusei Tamura ,  Kenji Makino ,  Takashi Baba ,  Koel Yamamoto

IPC: G01J1/44 ,  H01L27/144 ,  H01L31/02 ,  H01L31/107

CPC classification number: G01J1/44 ,  H01L27/1446 ,  H01L31/02027 ,  H01L31/107 ,  G01J2001/442 ,  G01J2001/4466

Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.

公开(公告)号：US11125616B2

公开(公告)日：2021-09-21

申请号：US16963312

申请日：2019-01-24

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takuya Fujita ,  Yusei Tamura ,  Kenji Makino ,  Takashi Baba ,  Koei Yamamoto

IPC: H01L31/02 ,  G01J1/44 ,  H01L27/144 ,  H01L31/107

Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.

公开(公告)号：US11860032B2

公开(公告)日：2024-01-02

申请号：US17384915

申请日：2021-07-26

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takuya Fujita ,  Yusei Tamura ,  Kenji Makino ,  Takashi Baba ,  Koei Yamamoto

IPC: H01L31/02 ,  G01J1/44 ,  H01L27/144 ,  H01L31/107

CPC classification number: G01J1/44 ,  H01L27/1446 ,  H01L31/02027 ,  H01L31/107 ,  G01J2001/442 ,  G01J2001/4466

Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.