Title:
ULTRASONIC TRANSDUCER, ULTRASONIC ARRAY, ULTRASONIC MODULE, ULTRASONIC PROBE, AND ULTRASONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/175660
Kind Code:
A1
Abstract:
Provided is an ultrasonic transducer provided with a flexible film and a piezoelectric element provided to the flexible film. The piezoelectric element has a piezoelectric body and a first electrode, second electrode, third electrode, and fourth electrode in contact with the piezoelectric body. The first electrode and the second electrode are separated with the piezoelectric body sandwiched therebetween, the first electrode and second electrode overlapping each other in a plan view seen from the thickness direction of the piezoelectric body. The third electrode and the fourth electrode are separated with the piezoelectric body sandwiched therebetween, the third electrode and fourth electrode overlapping each other in the plan view. The first electrode and the third electrode are separated in the plan view, and the second electrode and the fourth electrode are separated in the plan view.
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Inventors:
MATSUDA HIROSHI (JP)
Application Number:
PCT/JP2017/013299
Publication Date:
October 12, 2017
Filing Date:
March 30, 2017
Export Citation:
Assignee:
SEIKO EPSON CORP (JP)
International Classes:
H04R17/00; A61B8/14; H01L41/047; H01L41/09; H01L41/113; H04R3/00
Foreign References:
| JP2015177998A | 2015-10-08 | |||
| JP2015195351A | 2015-11-05 | |||
| JP2013005137A | 2013-01-07 |
Attorney, Agent or Firm:
WATANABE Kazuaki et al. (JP)
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