Title:
LIGHT DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/038703
Kind Code:
A1
Abstract:
Provided is a light detection device with which it is possible to suppress any fluctuation in the characteristics of a photoelectric conversion element without requiring a complicated circuit. A light detection device (10) according to the present technology comprises: a first semiconductor substrate (100) having first and second surfaces that face opposite each other, the first semiconductor substrate (100) being provided with a photoelectric conversion element having an avalanche amplification region (103); a laminated structure (200) in which at least an insulation layer (200a, 200b) and an electroconductive layer (200c) are laminated in the stated order from the side closer to the first surface; and a potential application structure (PAS) for applying electric potential to the electroconductive layer (200c). With the light detection device according to the present technology, it is possible to provide a light detection device with which it is possible to suppress any fluctuation in the characteristics of a photoelectric conversion element without requiring a complicated circuit.
Inventors:
NAKAMURA RYOICHI (JP)
TSUGAWA HIDENOBU (JP)
TSUGAWA HIDENOBU (JP)
Application Number:
PCT/JP2023/025392
Publication Date:
February 22, 2024
Filing Date:
July 10, 2023
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H01L31/107; H01L27/146; H01L31/10
Domestic Patent References:
| WO2021132056A1 | 2021-07-01 | |||
| WO2020209009A1 | 2020-10-15 |
Foreign References:
| JP2017054911A | 2017-03-16 | |||
| CN104091813A | 2014-10-08 | |||
| JP2013089919A | 2013-05-13 | |||
| JP2009218438A | 2009-09-24 | |||
| JP6913840B1 | 2021-08-04 |
Attorney, Agent or Firm:
WATANABE Kaoru (JP)
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