The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 15, 2020

Filed:

Jan. 14, 2016
Applicant:

The Regents of the University of California, Oakland, CA (US);

Inventors:

Firas Sammoura, San Jose, CA (US);

Sina Akhbari, Berkeley, CA (US);

Liwei Lin, San Ramon, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/09 (2006.01); B06B 1/06 (2006.01); H01L 41/113 (2006.01); H01L 41/047 (2006.01); H01L 41/27 (2013.01); H01L 41/331 (2013.01); H01L 41/332 (2013.01); H01L 41/316 (2013.01);
U.S. Cl.
CPC ...
B06B 1/0603 (2013.01); B06B 1/0622 (2013.01); H01L 41/047 (2013.01); H01L 41/0471 (2013.01); H01L 41/0973 (2013.01); H01L 41/1138 (2013.01); H01L 41/27 (2013.01); H01L 41/331 (2013.01); H01L 41/332 (2013.01); H01L 41/316 (2013.01);
Abstract

Piezoelectric transducers are provided. The piezoelectric transducer includes a first piezoelectric layer, a second piezoelectric layer disposed on at least a portion of the first piezoelectric layer, and a middle electrode layer disposed between the first and second piezoelectric layers, where the middle electrode layer includes an inner region and an outer region spaced apart from the inner region. Methods of making the piezoelectric transducers are also provided. The piezoelectric transducers and methods find use in a variety of applications, including devices, such as electronics devices having one or more (e.g., an array) of the piezoelectric transducers.


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