Title:
PIEZOELECTRIC VIBRATOR AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/059581
Kind Code:
A1
Abstract:
A piezoelectric vibrator (1) is provided with: a piezoelectric vibration element (10) that has a piezoelectric piece (11) and a pair of electrodes (14a, 14b) including electrodes facing each other with the piezoelectric piece (11) sandwiched therebetween; and a holder for housing the piezoelectric vibration element (10). A resin layer (L2) is provided over at least one electrode of the pair of electrodes (14a, 14b), and a water-repellent layer (L1) having a moisture permeability lower than that of the resin layer (L2) is provided between the electrode and the resin layer (L2).
Inventors:
OJIMA SHIGEO (JP)
USHIRO MASAKI (JP)
USHIRO MASAKI (JP)
Application Number:
PCT/JP2020/019308
Publication Date:
April 01, 2021
Filing Date:
May 14, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H3/02; H03H9/19
Foreign References:
| JPS57107624A | 1982-07-05 | |||
| JP2010232806A | 2010-10-14 | |||
| JP2003198312A | 2003-07-11 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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