Invention Grant
- Patent Title: Semiconductor light-receiving element and manufacturing method of semiconductor light-receiving element
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Application No.: US17447298Application Date: 2021-09-10
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Publication No.: US11705528B2Publication Date: 2023-07-18
- Inventor: Ryu Washino , Hiroshi Hamada , Takafumi Taniguchi
- Applicant: Lumentum Japan, Inc.
- Applicant Address: JP Kanagawa
- Assignee: Lumentum Japan, Inc.
- Current Assignee: Lumentum Japan, Inc.
- Current Assignee Address: JP Kanagawa
- Agency: Harrity & Harrity, LLP
- Priority: JP 19087586 2019.05.07
- Main IPC: H01L31/0224
- IPC: H01L31/0224 ; H01L31/18 ; H01L31/0352 ; H01L31/105 ; H01L31/0216 ; H01L31/0232

Abstract:
A semiconductor light-receiving element includes a substrate; a light-receiving mesa portion, formed on top of the substrate, including a first semiconductor layer of a first conductivity type, an absorption layer, and a second semiconductor layer of a second conductivity type; a light-receiving portion electrode, formed above the light-receiving mesa portion, connected to the first semiconductor layer; a pad electrode formed on top of the substrate; and a bridge electrode, placed so that an insulating gap is interposed between the bridge electrode and the second semiconductor layer, configured to connect the light-receiving portion electrode and the pad electrode on top of the substrate, the bridge electrode being formed in a layer separate from layers of the light-receiving portion electrode and the pad electrode.
Public/Granted literature
- US20210408303A1 SEMICONDUCTOR LIGHT-RECEIVING ELEMENT AND MANUFACTURING METHOD OF SEMICONDUCTOR LIGHT-RECEIVING ELEMENT Public/Granted day:2021-12-30
Information query
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