Title:
PIEZOELECTRIC VIBRATOR, MANUFACTURING METHOD FOR PIEZOELECTRIC VIBRATOR AND ADJUSTMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/061356
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a piezoelectric vibrator, a manufacturing method for a piezoelectric vibrator and an adjustment device which enable the resonance frequency of a piezoelectric vibrator to be adjusted after a package is sealed without providing a transmissive window in the package. A piezoelectric vibrator according to the present invention is provided with: a package that includes a substrate, a lid, and a joining material for joining the substrate and the lid, and is a sealed container; a piezoelectric vibration element that is provided in the package and includes a piezoelectric piece, a first excitation electrode and a second excitation electrode; and a metallic member that is provided in the package so as not to be in contact with the piezoelectric vibration element, and has a lower melting point than the material of the first excitation electrode and the second excitation electrode, wherein the interior of the package is shielded against light.
Inventors:
YAMAMOTO HIROYUKI (JP)
Application Number:
PCT/JP2017/023177
Publication Date:
April 05, 2018
Filing Date:
June 23, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H3/04; H03H3/02; H03H9/02
Domestic Patent References:
| WO2009101733A1 | 2009-08-20 |
Foreign References:
| JP2007081697A | 2007-03-29 | |||
| JP2014160877A | 2014-09-04 | |||
| JP2011211441A | 2011-10-20 |
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (JP)
Download PDF: