Invention Grant
- Patent Title: Piezoelectric member, ultrasonic oscillation element, ultrasonic probe, ultrasound diagnostic system, and method for producing piezoelectric member
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Application No.: US16484141Application Date: 2018-03-05
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Publication No.: US11575080B2Publication Date: 2023-02-07
- Inventor: Naoki Shimizu , Kazunari Tada
- Applicant: KONICA MINOLTA, INC.
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA, INC.
- Current Assignee: KONICA MINOLTA, INC.
- Current Assignee Address: JP Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JPJP2017-042265 20170306
- International Application: PCT/JP2018/008313 WO 20180305
- International Announcement: WO2018/164047 WO 20180913
- Main IPC: H01L41/047
- IPC: H01L41/047 ; H01L41/08 ; A61B8/00 ; H01L41/193 ; H01L41/33

Abstract:
A piezoelectric member including metal electrodes with improved adhesiveness to piezoelectric elements is to be provided. A piezoelectric member 102 includes a piezoelectric element 21, and a pair of electrodes 41, 42 respectively formed on a pair of opposing surfaces 21b, 21c of the piezoelectric element 21. The electrodes 41, 42 includes: a base film 41a that is formed on the opposing surfaces 21b, 21c of the piezoelectric element 21 and contains a thiol group; a metal adhesive film 41b formed on the base film 41a; and an electrode film 41c that is formed on the metal adhesive film 41b and is for applying voltage to the piezoelectric element 21. The metal adhesive film 41b is formed with a different material from the electrode film 41c, and has a thickness of 1 to 10 nm.
Information query
IPC分类: