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公开(公告)号：US10600931B2
公开(公告)日：2020-03-24
申请号：US16184856
申请日：2018-11-08
申请人： WOORIRO CO., LTD.
发明人： Chan Yong Park , Seoung Hwan Park
IPC分类号： H01L31/107 , H01L31/0352 , H01L31/0304
摘要： An avalanche photodiode includes: a first contact layer; a light absorbing layer located on the first contact layer and having a multi-quantum well structure; a first electric field control layer located on the light absorbing layer; and a carrier multiplication layer located on the first electric field control layer. At least one of the multi-quantum well structure includes a well layer that includes Ga1-xAlxN (0≤X≤0.3), and a barrier layer that includes Ga1-xAlxN (0.7≤X≤1) and a doping portion doped with a p-type dopant.
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公开(公告)号：US11619545B2
公开(公告)日：2023-04-04
申请号：US16645346
申请日：2018-07-11
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.
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公开(公告)号：US09671574B2
公开(公告)日：2017-06-06
申请号：US15019975
申请日：2016-02-10
申请人： Wooriro Co., Ltd. , Young Hye Kim
发明人： Sang Hwan Lee , Chan Yong Park , Young Hye Kim
CPC分类号： G02B6/4214 , G02B6/125 , G02B6/136 , G02B6/43
摘要： An optical integrated circuit comprises optical waveguides, grooves formed by etching the upper cladding layer, the core layer and all or parts of the lower cladding layer close to a end section of the optical waveguide to intercept light transmitted through the core layer of the optical waveguide or to couple light into the core layer, a plurality of bonding pads formed around the groove, micro-mirrors and active optical elements. Such a PLC based optical integrated circuit and a method of manufacturing the same provides a low-cost manufacturing of optical integrated circuits and high quality mirrors for vertical optical coupling scheme.
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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.
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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.
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公开(公告)号：US20210050461A1
公开(公告)日：2021-02-18
申请号：US16645346
申请日：2018-07-11
发明人： Chan Yong PARK , Soo Hyun BAEK , Chul Woo PARK , Seok Beom CHO
IPC分类号： H01L31/0232 , H01L31/107 , G01J1/44
摘要： The present invention relates to a photon detection device having a high light detection efficiency, the photon detection device comprising: 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, wherein 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.
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