Title:
PIEZOELECTRIC VIBRATION DEVICE AND METHOD FOR MANUFACTURING PIEZOELECTRIC VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/017743
Kind Code:
A1
Abstract:
Provided are a piezoelectric vibration device and a method for manufacturing a piezoelectric vibration device that enable filling of the interior of a holding member with nitrogen gas or the like, without increasing tact time. The method comprises: a sealing material-attached member preparation step S110 for preparing a lid member 10 or a holding member 2 of which one has, in a part of a portion thereof that contacts the other, the sealing material configured in a rectangular frame-like shape in plan view, at least one corner portion 11c of the sealing material 11 having an increased-thickness portion thicker than portions thereof other than the corner portion 11c; a lid member mounting step S120 for contacting the increased-thickness portion with the other to mount the lid member 10 to the holding member 2, the molding member 2 having a piezoelectric element 7 bonded thereto; a tacking step S130 for heating the lid member 10 mounted to the holding member 2 to melt a part of the increased-thickness portion to tack the lid member 10 and the holding member 2 to each other; and a sealing step S140 for melting the sealing material 11 including the increased-thickness portion to seal the lid member 10 and the holding member 2.
Inventors:
OGASAWARA YOSHIKIYO (JP)
Application Number:
PCT/JP2022/029159
Publication Date:
February 16, 2023
Filing Date:
July 28, 2022
Export Citation:
Assignee:
DAISHINKU CORP (JP)
International Classes:
H03H3/02; H03H9/02
Foreign References:
| JP2006049353A | 2006-02-16 | |||
| JP2014038970A | 2014-02-27 | |||
| JP2014072883A | 2014-04-21 | |||
| JP2011228352A | 2011-11-10 | |||
| JP2012049584A | 2012-03-08 | |||
| US20170271573A1 | 2017-09-21 |
Attorney, Agent or Firm:
SUZUKI Kazuaki et al. (JP)
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