Title:
PHOTOELECTRIC DETECTOR AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/206813
Kind Code:
A1
Abstract:
Disclosed in the embodiments of the present disclosure are a photoelectric detector and a manufacturing method therefor. The photoelectric detector comprises: an n-type semiconductor substrate, which has a first surface and a second surface opposite each other; a light absorption layer and a semiconductor layer, which are sequentially arranged on the first surface of the n-type semiconductor substrate in a stacked manner; a p-type doped region, which is located in the semiconductor layer, wherein the p-type doped region extends from the top surface of the semiconductor layer to the light absorption layer, and is in contact with the light absorption layer, the p-type doped region comprises a body, a first protrusion and a second protrusion, the first protrusion and the second protrusion are located on two opposite sides of the body, and in a direction parallel to the light absorption layer, the first protrusion protrudes in a direction that faces away from the second protrusion, and the second protrusion protrudes in a direction that faces away from the first protrusion; a p-type contact layer, which is located on the p-type doped region, and is in contact with the p-type doped region; a first electrode layer, which covers and is in contact with the p-type contact layer; and a second electrode layer, which covers and is brought into contact with the second surface of the n-type semiconductor substrate, and which exposes at least part of a region of the second surface. According to the photoelectric detector in the embodiments of the present disclosure, electro-static discharge damage is reduced.
Inventors:
HUO PANJIE (CN)
HU YAN (CN)
HU YAN (CN)
Application Number:
PCT/CN2022/104075
Publication Date:
November 02, 2023
Filing Date:
July 06, 2022
Export Citation:
Assignee:
ACCELINK TECH CO LTD (CN)
International Classes:
H01L31/107
Foreign References:
| US20030137026A1 | 2003-07-24 | |||
| US20030178636A1 | 2003-09-25 | |||
| US6515315B1 | 2003-02-04 | |||
| CN105070780A | 2015-11-18 | |||
| US20140175511A1 | 2014-06-26 | |||
| US20170084773A1 | 2017-03-23 |
Attorney, Agent or Firm:
ZY PARTNERS (CN)
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