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.
Patent No.:
Date of Patent:
Mar. 20, 2012
Filed:
Jan. 28, 2009
Applicants:
Uri Kushnir, Haifa, IL;
Oded Rabinovitch, Haifa, IL;
Inventors:
Uri Kushnir, Haifa, IL;
Oded Rabinovitch, Haifa, IL;
Assignee:
Technion Research & Development Foundation Ltd., Haifa, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An actuator device is disclosed. The actuator device comprises a stack of piezoelectric-ferroelectric active layers separated by surface electrodes. At least a few of the surface electrodes are independently addressable such that at least two active layers are biasable by different voltages. In an embodiment of the invention, at least a few of the voltages induce a nonlinear ferroelectric effect.