公开(公告)号：US11619545B2

公开(公告)日：2023-04-04

申请号：US16645346

申请日：2018-07-11

申请人： ID QUANTIQUE S.A. ,  WOORIRO CO., LTD.

发明人： Chan Yong Park ,  Soo Hyun Baek ,  Chul Woo Park ,  Seok Beom Cho

IPC分类号： G01J1/44 ,  H01L31/107 ,  H01L31/02 ,  G01J1/42 ,  H01L31/0232

摘要： A photon detection device having a high light detection efficiency. The photon detection device includes a first light reception part which receives a gate signal and outputs a first signal; a second light reception part which receives a gate signal and outputs a second signal; and a determination part which determines whether or not a photon is received, on the basis of the first signal from the first light reception part and the second signal from the second light reception part. The photon is incident on the first light reception part among the first light reception part and the second light reception part, and the breakdown voltage of the second light reception part is higher than the breakdown voltage of the first light reception part.

公开(公告)号：US11476381B2

公开(公告)日：2022-10-18

申请号：US17488470

申请日：2021-09-29

申请人： Wooriro Co., Ltd.

发明人： Chan Yong Park ,  Soo Hyun Baek ,  Jung Hyun Kim

IPC分类号： H01L31/107 ,  H01L31/0224

摘要： According to an embodiment, a single photon detector configured to reduce a dark current comprises a buffer layer, a light absorption layer, a grading layer, an electric field control layer, and a window layer sequentially formed on a substrate. An active area may be formed in the window layer. A barrier junction may be formed through the window layer up to at least a portion of the light absorption layer, around the active area.

公开(公告)号：US20220158020A1

公开(公告)日：2022-05-19

申请号：US17488470

申请日：2021-09-29

申请人： Wooriro Co., Ltd.

发明人： Chan Yong Park ,  Soo Hyun Baek ,  Jung Hyun Kim

IPC分类号： H01L31/107 ,  H01L31/0224

摘要： According to an embodiment, a single photon detector configured to reduce a dark current comprises a buffer layer, a light absorption layer, a grading layer, an electric field control layer, and a window layer sequentially formed on a substrate. An active area may be formed in the window layer. A barrier junction may be formed through the window layer up to at least a portion of the light absorption layer, around the active area.