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:
Oct. 20, 2020

Filed:

Apr. 03, 2018
Applicant:

The Penn State Research Foundation, University Park, PA (US);

Inventors:

Fei Li, State College, PA (US);

Dabin Lin, State College, PA (US);

Shujun Zhang, State College, PA (US);

Thomas R. Shrout, Furance, PA (US);

Long-Qing Chen, State College, PA (US);

Assignee:

The Penn State Research Foundation, University Park, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/257 (2013.01); C04B 35/491 (2006.01); C04B 41/00 (2006.01); C04B 41/45 (2006.01); C04B 41/50 (2006.01); C04B 41/87 (2006.01); H01L 41/187 (2006.01); H01L 41/43 (2013.01);
U.S. Cl.
CPC ...
H01L 41/257 (2013.01); C04B 35/491 (2013.01); C04B 41/009 (2013.01); C04B 41/4558 (2013.01); C04B 41/5041 (2013.01); C04B 41/87 (2013.01); H01L 41/1875 (2013.01); C04B 2235/3249 (2013.01); C04B 2235/3255 (2013.01); C04B 2235/768 (2013.01); H01L 41/43 (2013.01);
Abstract

Embodiments of the invention can be directed to controlling and/or engineering the size and/or volume of polar nanoregions (PNRs) of ferroelectric polycrystalline material systems. Some embodiments can achieved this via composition modifications to cause changes in the PNRs and/or local structure. Some embodiments can be used to control and/or engineer dielectric, piezoelectric, and/or electromechanical properties of polycrystalline materials. Controlling and/or engineering the PNRs may facilitate improvements to the dielectric, piezoelectric, and/or electromechanical properties of materials. Controlling and/or engineering the PNRs may further facilitate generating a piezoelectric material that may be useful for many different piezoelectric applications.


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