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Title:
LIGHT RECEPTION ELEMENT AND METHOD FOR MANUFACTURING LIGHT-RECEPTION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/203070
Kind Code:
A1
Abstract:
A light reception element comprises: a semiconductor part having a first surface that includes a light reception part and a light-blocking part; and a metal film for blocking light, the metal film being provided on the light-blocking part. The metal film has a second surface facing the side opposite the first surface, the second surface receiving the incidence of light. A plurality of recessed sections are formed in the second surface. The inner surface of each of the recessed sections includes a curved section that curves so that the size of the recessed section is reduced in a direction along the second surface from the second surface toward the bottom of the recessed section.

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Inventors:
SUGIMORI RYO (JP)
TANAKA YUMA (JP)
Application Number:
PCT/JP2019/015499
Publication Date:
October 24, 2019
Filing Date:
April 09, 2019
Export Citation:
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Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
H01L31/10; H01L31/0232
Domestic Patent References:
WO2013061990A12013-05-02
Foreign References:
JPH05175539A1993-07-13
JP2015079232A2015-04-23
JP2014241351A2014-12-25
US9608023B12017-03-28
JPH0484462A1992-03-17
JP2774006B21998-07-09
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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