Invention Application
- Patent Title: LAMINATED PIEZOELECTRIC ELEMENT
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Application No.: US17943801Application Date: 2022-09-13
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Publication No.: US20230007400A1Publication Date: 2023-01-05
- Inventor: Yusuke KAGAWA , Teruo ASHIKAWA , Kazuo HIRAGUCHI
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2020-059969 20200330
- Main IPC: H04R7/10
- IPC: H04R7/10 ; H01L41/083 ; H01L41/18 ; H01L41/37 ; H04R17/00 ; H04R31/00

Abstract:
Provided is a laminated piezoelectric element capable of suppressing a short circuit between piezoelectric films in a laminated piezoelectric element in which a plurality of layers of a piezoelectric film formed by interposing a piezoelectric layer between an electrode layer and a protective layer are laminated. The laminated piezoelectric element is formed by laminating a plurality of layers of piezoelectric films each having a piezoelectric layer, two electrode layers between which the piezoelectric layer is interposed, and two protective layers respectively covering the electrode layers. At least a part of each end side of the adjacent piezoelectric films is located at a different position in a plane direction.
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