Invention Grant
- Patent Title: Piezoelectric film, ink jet head, angular velocity sensor and piezoelectric generating element
- Patent Title (中): 压电膜，喷墨头，角速度传感器和压电发生元件
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Application No.: US13616125Application Date: 2012-09-14
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Publication No.: US08591009B2Publication Date: 2013-11-26
- Inventor: Yoshiaki Tanaka , Takakiyo Harigai , Hideaki Adachi , Eiji Fujii
- Applicant: Yoshiaki Tanaka , Takakiyo Harigai , Hideaki Adachi , Eiji Fujii
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2011-089868 20110414
- Main IPC: H01L41/00
- IPC: H01L41/00 ; H02N2/00 ; B41J2/045
Abstract:
The purpose of the present invention is to provide a BNT-BT piezoelectric film having a higher crystalline orientation, a higher piezoelectric constant, and a higher ferroelectric property. The present invention is directed to a piezoelectric film comprising a first electrode having only a (110) orientation; a (NaxBi0.5)TiO0.5x+2.75—BaTiO layer having only a (110) orientation, a (Bi,Na)TiO3—BaTiO3 layer having only a (110) orientation, and a second electrode, wherein a value of x is not less than 0.29 and not more than 0.40, and the first electrode, the (NaxBi0.5)TiO0.5x+2.75—BaTiO3 layer, the (Bi,Na)TiO3—BaTiO3 layer, and the second electrode are laminated in this order.
Public/Granted literature
- US20130016163A1 PIEZOELECTRIC FILM, INK JET HEAD, ANGULAR VELOCITY SENSOR AND PIEZOELECTRIC GENERATING ELEMENT Public/Granted day:2013-01-17
Information query
IPC分类:
