Invention Grant
- Patent Title: Piezoelectric/electrostrictive element and method of manufacturing the same
- Patent Title (中): 压电/电致伸缩元件及其制造方法
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Application No.: US13235578Application Date: 2011-09-19
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Publication No.: US08479364B2Publication Date: 2013-07-09
- Inventor: Takaaki Koizumi , Hideki Shimizu
- Applicant: Takaaki Koizumi , Hideki Shimizu
- Applicant Address: JP Nagoya
- Assignee: NGK Insulators, Ltd.
- Current Assignee: NGK Insulators, Ltd.
- Current Assignee Address: JP Nagoya
- Agency: Burr & Brown
- Priority: JP2008-033035 20080214
- Main IPC: H01L41/22
- IPC: H01L41/22 ; H01L41/00 ; H04R17/00 ; H02N2/00

Abstract:
A piezoelectric/electrostrictive element includes a laminated vibrator made of laminations of a piezoelectric/electrostrictive film and an electrode film, with the electrode film having an internal electrode film. The piezoelectric/electrostrictive element has a coating formed on a part of a surface of the laminated vibrator so that the coating selectively and completely covers a defect that would otherwise be exposed on the surface of the vibrator before the coating coats the defect. The defect extends to the internal electrode film and the remainder of the surface of the laminated vibrator is free of the coating.
Public/Granted literature
- US20120007474A1 PIEZOELECTRIC/ELECTROSTRICTIVE ELEMENT AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2012-01-12
Information query
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