Title:
PIEZOELECTRIC VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/051800
Kind Code:
A1
Abstract:
According to the present invention, a crystal oscillator (101) is provided with: a piezoelectric diaphragm (2) that is provided with a first excitation electrode and a second excitation electrode; a first sealing member (3) that covers the first excitation electrode of the piezoelectric diaphragm (2); and a second sealing member (4) that covers the second excitation electrode of the piezoelectric diaphragm (2). An internal space (13), in which a vibration part of the piezoelectric diaphragm (2) including the first excitation electrode and the second excitation electrode is hermetically sealed, is formed by bonding the first sealing member (3) and the piezoelectric diaphragm (2) with each other and by bonding the second sealing member (4) and the piezoelectric diaphragm (2) with each other. Plating films (51, 52) are respectively formed on surfaces of the first sealing member (3) and the second sealing member (4), said surfaces being on the reverse side of the surfaces that are bonded with the piezoelectric diaphragm (2).
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Inventors:
ISHINO SATORU (JP)
Application Number:
PCT/JP2017/031364
Publication Date:
March 22, 2018
Filing Date:
August 31, 2017
Export Citation:
Assignee:
DAISHINKU CORP (JP)
International Classes:
H03H9/02
Foreign References:
| JP2006067256A | 2006-03-09 | |||
| JP2009201067A | 2009-09-03 | |||
| JP2010252321A | 2010-11-04 | |||
| JP2007235707A | 2007-09-13 | |||
| JP2001177369A | 2001-06-29 |
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
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