Title:
PIEZOELECTRIC ELEMENT ASSEMBLY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/053160
Kind Code:
A1
Abstract:
A piezoelectric element assembly according to the present invention includes: a piezoelectric element including a top electrode and a bottom electrode constituting an external electrode, and an internal electrode; and wiring including first and second wires that are electrically connected to the external electrode and the internal electrode, respectively. The piezoelectric element includes, on the upper surface thereof, a bottom electrode terminal and an internal electrode terminal that are separated from the top electrode via a bottom-electrode-side gap and an internal-electrode-side gap, respectively. The first wire is joined to a first conductive joint material that integrally covers parts of the bottom electrode terminal and the top electrode, and the second wire is joined to a second conductive joint material that covers the internal electrode terminal. At least an internal-electrode-terminal facing region of the top electrode, which faces the internal electrode terminal via the internal-electrode-side gap, is covered by an insulating coating.
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Inventors:
TAKASUGI SATORU (JP)
Application Number:
PCT/JP2021/035501
Publication Date:
April 06, 2023
Filing Date:
September 28, 2021
Export Citation:
Assignee:
SUNCALL CORP (JP)
International Classes:
H04R17/00
Domestic Patent References:
| WO2021152776A1 | 2021-08-05 | |||
| WO2019234854A1 | 2019-12-12 |
Foreign References:
| JP2006060281A | 2006-03-02 | |||
| JP2018051903A | 2018-04-05 |
Attorney, Agent or Firm:
ARAWORE INTERNATIONAL IP LAW FIRM (JP)
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