Invention Grant
- Patent Title: Light detection device
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Application No.: US16152494Application Date: 2018-10-05
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Publication No.: US10672814B2Publication Date: 2020-06-02
- Inventor: Nao Inoue , Ryosuke Koike , Haruyuki Nakayama
- Applicant: HAMAMATSU PHOTONICS K.K.
- Applicant Address: JP Hamamatsu-shi, Shizuoka
- Assignee: HAMAMATSU PHOTONICS K.K.
- Current Assignee: HAMAMATSU PHOTONICS K.K.
- Current Assignee Address: JP Hamamatsu-shi, Shizuoka
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@173b537f
- Main IPC: H01L31/0203
- IPC: H01L31/0203 ; H01L27/146 ; H01L23/00

Abstract:
A light detection device includes: a back-illuminated light receiving element; a circuit element; a connection member; an underfill; and a light shielding mask. The light shielding mask includes a frame having an opening and a light shielding layer formed on an inner surface of the opening. A first opening edge on the side of the circuit element in the opening is located at the outside of an outer edge of the light receiving element. A second opening edge opposite to the circuit element in the opening is located at the inside of the outer edge of the light receiving element. The opening is narrowed from the first opening edge toward the second opening edge. A width of the frame increases from the first opening edge toward the second opening edge. The underfill reaches a gap between the light receiving element and the light shielding layer.
Public/Granted literature
- US20190109167A1 LIGHT DETECTION DEVICE Public/Granted day:2019-04-11
Information query
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