Title:
PIEZOELECTRIC VIBRATION PIECE AND PIEZOELECTRIC VIBRATION DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/006868
Kind Code:
A1
Abstract:
A piezoelectric vibration piece is an inverted mesa-type having: a thin-walled portion formed as a vibration region at the central portion of a piezoelectric plate; and a thick-walled portion formed in the entire periphery of or a part of the thin-walled portion and reinforcing the thin-walled portion. In the piezoelectric vibration piece, a contact metal consisting of a large number of separated metal thin films is provided on the entire surface of the piezoelectric plate. This piezoelectric vibration device is formed such that the piezoelectric vibration piece is housed in a package and a lead-out electrode of the piezoelectric vibration piece is connected to an internal terminal thereof by a conductive adhesive. This prevents the conductive adhesive before being thermally cured from flowing out, resulting in a piezoelectric vibration piece having excellent vibration characteristics and a piezoelectric vibration device using the piezoelectric vibration piece.
Inventors:
KOHDA NAOKI (JP)
Application Number:
PCT/JP2013/004064
Publication Date:
January 09, 2014
Filing Date:
July 01, 2013
Export Citation:
Assignee:
DAISHINKU CORP (JP)
International Classes:
H03H9/19; H01L41/09; H01L41/18
Domestic Patent References:
| WO2007023685A1 | 2007-03-01 |
Foreign References:
| JP2011082870A | 2011-04-21 | |||
| JPH07254837A | 1995-10-03 | |||
| JP2003152496A | 2003-05-23 |
Attorney, Agent or Firm:
OKADA, Kazuhide (13-38 Naniwa-cho,Kita-ku, Osaka-sh, Osaka 22, JP)
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