Invention Grant
- Patent Title: Vibration device
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Application No.: US17030711Application Date: 2020-09-24
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Publication No.: US11575079B2Publication Date: 2023-02-07
- Inventor: Koichi Mizugaki
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Rankin, Hill & Clark LLP
- Priority: JPJP2019-176765 20190927
- Main IPC: H03H9/17
- IPC: H03H9/17 ; H01L41/047 ; B06B1/06 ; H01G5/18

Abstract:
A vibration device includes a semiconductor substrate having a first surface and a second surface in an obverse-reverse relationship, a vibration element disposed on the first surface, a lid bonded to the first surface, an integrated circuit disposed on the first surface, a terminal disposed on the second surface, a through electrode which penetrates the semiconductor substrate, and is configured to electrically couple the terminal and the integrated circuit to each other, and a first capacitor which is provided with a first recess provided to the semiconductor substrate and opening in the first surface, an insulating film disposed on an inside surface of the first recess, and an electrically-conductive material filling the first recess, and has a first capacitance between the electrically-conductive material and the semiconductor substrate, wherein the electrically-conductive material does not have contact with the terminal at the second surface side.
Public/Granted literature
- US20210098680A1 VIBRATION DEVICE Public/Granted day:2021-04-01
Information query
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