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:
May. 10, 2016
Filed:
Mar. 09, 2014
Applicant:
United Microelectronics Corp., Hsin-Chu, TW;
Inventor:
Ming-Shun Hsu, Miaoli County, TW;
Assignee:
UNITED MICROELECTRONICS CORP., Science-Based Industrial Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/54 (2006.01); H03H 9/205 (2006.01); H03H 9/58 (2006.01);
U.S. Cl.
CPC ...
H03H 9/205 (2013.01); H03H 9/584 (2013.01); H03H 9/585 (2013.01); H03H 9/589 (2013.01);
Abstract
A resonator filter includes a substrate, a bottom electrode formed on the substrate, a multi-layered coupling structure formed on the bottom electrode, a top electrode formed on the multi-layered coupling structure, a first piezoelectric layer sandwiched in between the bottom electrode and the multi-layered coupling structure, and a second piezoelectric layer sandwiched in between the multi-layered coupling structure and the top electrode. The multi-layered coupling structure includes at least an insulating material.