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PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, ULTRASONIC PROBE, ULTRASONIC DEVICE, ELECTRONIC APPARATUS, LIQUID JET HEAD, AND LIQUID JET DEVICE
专利权人:
发明人:
Koji OHASHI,Chikara KOJIMA
申请号:
US15718639
公开号:
US20180090666A1
申请日:
2017.09.28
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A piezoelectric element includes a piezoelectric element main body as a laminated body of a first electrode layer, a piezoelectric layer disposed on the first electrode layer, and a second electrode layer disposed on the piezoelectric layer, and a metal layer disposed on the second electrode layer via an insulating layer, the piezoelectric layer extends from an inner side of at least a part of an overlapping part of an outer peripheral edge of the second electrode layer overlapping an outer peripheral edge of the piezoelectric element main body to an outer side, and the metal layer and the insulating layer extend from an inner side of at least a part of the overlapping part to an outer side to overlap the piezoelectric layer on an outer side of an outer peripheral edge of the second electrode layer.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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