Title:
圧電フィルム、振動デバイス、および、歪検出デバイス
Document Type and Number:
Japanese Patent JP6398340
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a piezoelectric film enabling suppression of deformation in a width direction even if extension or shrinkage occurs in a lengthwise direction.SOLUTION: A piezoelectric film 1 produces, when a voltage is applied, an expansion or contraction stress to the directions of 45° and -45° in the clockwise direction from the Y-axis direction. The piezoelectric film 1 includes a unit region 10 which includes: an electrode formation part 11 having a front and a rear surface on which electrodes are disposed; an electrode formation part 12 juxtaposed with the electrode formation part 11 in an X-axis direction and having a front and a rear surface on which electrodes are disposed in opposite polarities to the electrode formation part 11; and an electrode non-formation part 13 connected to an adjacent region on one edge in a Y-axis direction. On another edge of the unit region 10 in the Y-axis direction, there are provided notches 5 which continue from the electrode formation part 11 to the electrode formation part 12.
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Inventors:
Masamichi Ando
Kentaro Usui
Kentaro Usui
Application Number:
JP2014118331A
Publication Date:
October 03, 2018
Filing Date:
June 09, 2014
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01L41/193; H01L41/08; H01L41/09; H01L41/113; H01L41/45; H04R17/00; H04R17/02
Domestic Patent References:
| JP6061542A | ||||
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Foreign References:
| WO2012108448A1 | ||||
| WO2013175848A1 | ||||
| WO2012157691A1 | ||||
| WO2012073656A1 | ||||
| DE10238932B3 |
Attorney, Agent or Firm:
Kaede International Patent Office