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Patent Searching and Data


Title:
PIEZOELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/145530
Kind Code:
A1
Abstract:
This piezoelectric device (101) comprises: a ferroelectric layer (1) including a first surface (41) and a second surface (42); a first electrode (21) comprising sintered metal and covering a portion of the first surface (41); a second electrode (22) comprising sintered metal, covering a portion of an area of the first surface (41) not covered with the first electrode (21), and separated from the first electrode (21); a third electrode (23) comprising sintered metal and covering a portion of the second surface (42) so as to include an area of the second surface (42) facing the first electrode (21); and a fourth electrode (24) covering a portion of an area of the second surface (42) not covered with the third electrode (23), and separated from the third electrode (23). The fourth electrode (24) faces at least a portion of the second electrode (22) with the ferroelectric layer (1) interposed therebetween.

Inventors:
TANI SHINSUKE (JP)
Application Number:
PCT/JP2017/000421
Publication Date:
August 31, 2017
Filing Date:
January 10, 2017
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01P15/09; G01P15/00; G01P15/08; H01L41/047; H01L41/113; H01L41/187
Domestic Patent References:
WO2013027736A12013-02-28
Foreign References:
JP2006019597A2006-01-19
US3764848A1973-10-09
US3562792A1971-02-09
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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