Title:
PIEZOELECTRIC VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/131213
Kind Code:
A1
Abstract:
Provided is a piezoelectric vibration device in which a crystal vibrating plate (10) has a cut-out portion (10a) provided between a vibrating portion (11) and an outer frame portion (12). A metal film (28) is formed on a first major surface (201) of a first sealing member (20). The metal film (28) is electrically connected to an external electrode terminal (32) formed on a second major surface (302) of a second sealing member (30) on a side not facing the internal space, via a first internal wire (105) formed on an inner wall surface (105) of the outer frame portion (12).
Inventors:
ISHINO SATORU (JP)
YAMASHITA HIROAKI (JP)
YAMASHITA HIROAKI (JP)
Application Number:
PCT/JP2021/045839
Publication Date:
June 23, 2022
Filing Date:
December 13, 2021
Export Citation:
Assignee:
DAISHINKU CORP (JP)
International Classes:
H01L23/04; H03H9/02
Foreign References:
| JP2020088589A | 2020-06-04 | |||
| JP2020162069A | 2020-10-01 | |||
| JP2018133789A | 2018-08-23 | |||
| JP2010093674A | 2010-04-22 | |||
| JP2010109528A | 2010-05-13 | |||
| JP2010252051A | 2010-11-04 | |||
| JP2020208448A |
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
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