Title:
PIEZOELECTRIC ELEMENT AND ACOUSTIC GENERATOR, ACOUSTIC GENERATION DEVICE, AND ELECTRONIC APPARATUS PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2016/031302
Kind Code:
A1
Abstract:
[Problem] To provide a piezoelectric element that is not susceptible to dielectric breakdown or damage even when driven with a high voltage for a long period, and an acoustic generator, an acoustic generation device, and an electronic apparatus that are provided with the piezoelectric element. [Solution] The present invention is provided with: a laminate 13, having a rectangular shape in a planar view, in which an internal electrode 11 and a piezoelectric layer 12 are laminated in plurality; and a plurality of connection electrodes 14 connected to the ends on one side of the plurality of internal electrodes 11, corners 110 at the ends on the other side of the plurality of internal electrodes 11 having a corner cut shape.
Inventors:
SUENAGA HIROSHI (JP)
Application Number:
PCT/JP2015/062709
Publication Date:
March 03, 2016
Filing Date:
April 27, 2015
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
H01L41/047; H04R17/00; H01L41/083; H01L41/09
Foreign References:
| JP2014049906A | 2014-03-17 | |||
| JP2011244379A | 2011-12-01 |
Other References:
See also references of EP 3188506A4
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