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.