Invention Grant
- Patent Title: Resonator element and resonator
- Patent Title (中): 谐振元件和谐振器
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Application No.: US12704450Application Date: 2010-02-11
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Publication No.: US08310137B2Publication Date: 2012-11-13
- Inventor: Masahiro Ishii , Takeo Funakawa
- Applicant: Masahiro Ishii , Takeo Funakawa
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2009-029895 20090212
- Main IPC: H01L41/08
- IPC: H01L41/08 ; H03H9/19

Abstract:
A resonator element includes: three or more resonating arms, each of the resonating arms including; a lower electrode provided on a first surface of the resonating arm, a piezoelectric film formed on the lower electrode, an upper electrode formed on the piezoelectric film, a first wiring line coupled to the lower electrode, and a second wiring line coupled to the upper electrode; and a base to which the resonating arms are connected. In the resonator element, the resonating arm vibrates in a thickness direction of the resonating arm. The resonating arms adjacent to each other vibrate in opposite directions from each other. The first surface is opposed to a second surface in the thickness direction. The second wiring line is drawn out to the second surface through side surfaces of the resonating arm so as to surround the resonating arm.
Public/Granted literature
- US20100201223A1 RESONATOR ELEMENT AND RESONATOR Public/Granted day:2010-08-12
Information query
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