Invention Grant
- Patent Title: Vibration device
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Application No.: US16759593Application Date: 2018-10-25
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Publication No.: US11548030B2Publication Date: 2023-01-10
- Inventor: Yoshiki Ohta , Kazushi Tachimoto , Hideya Sakamoto , Tetsuyuki Taniguchi , Tatsuya Taki , Tomohiro Takeda , Akihiro Takeda
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JPJP2017-213042 20171102
- International Application: PCT/JP2018/039667 WO 20181025
- International Announcement: WO2019/087922 WO 20190509
- Main IPC: G01L9/00
- IPC: G01L9/00 ; H01L21/00 ; B06B1/06 ; H01L41/047 ; H01L41/083 ; H01L41/09

Abstract:
A piezoelectric element includes a piezoelectric element body including a first principal surface and a second principal surface opposing each other, and a plurality of external electrodes disposed on the first principal surface. A vibration member includes a third principal surface opposing the second principal surface. The piezoelectric element is joined to the third principal surface. A wiring member is electrically connected to the piezoelectric element. The wiring member includes a region located on the plurality of external electrodes and joined to the plurality of external electrodes. The region of the wiring member monolithically covers the plurality of external electrodes when viewed from a direction orthogonal to the first principal surface.
Public/Granted literature
- US20200282426A1 VIBRATION DEVICE Public/Granted day:2020-09-10
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