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. 24, 2015
Filed:
Dec. 21, 2010
Applicant:
Andrea Testino, Genoa, IT;
Inventor:
Andrea Testino, Genoa, IT;
Assignee:
EPCOS AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 7/00 (2006.01); H01G 7/04 (2006.01); H01G 7/06 (2006.01);
U.S. Cl.
CPC ...
H01G 7/04 (2013.01); H01G 7/06 (2013.01);
Abstract
A varactor includes a first PTC region, which comprises a ceramic material with a positive temperature coefficient with respect to the resistance. The varactor also includes a capacitor region that includes a first electrode, a second electrode, and a first dielectric layer arranged between the first electrode and the second electrode. The first PTC region and the capacitor region are connected thermally conductively to one another. The capacitance of the capacitor region can be changed by applying a bias to the first PTC region, the capacitor region or to the first PTC region and the capacitor region.