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:
Feb. 13, 2018
Filed:
Nov. 08, 2011
Zhihong Chen, West Lafayette, NY (US);
Shu-jen Han, Cortlandt Manor, NY (US);
Siyuranga O. Koswatta, Bedford Hills, NY (US);
Alberto Valdes Garcia, Hartsdale, NY (US);
Zhihong Chen, West Lafayette, NY (US);
Shu-Jen Han, Cortlandt Manor, NY (US);
Siyuranga O. Koswatta, Bedford Hills, NY (US);
Alberto Valdes Garcia, Hartsdale, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A plate varactor includes a dielectric substrate and a first electrode embedded in a surface of the substrate. A capacitor dielectric layer is disposed over the first electrode, and a layer of graphene is formed over the dielectric layer to contribute a quantum capacitance component to the dielectric layer. An upper electrode is formed on the layer of graphene. Other embodiments and methods for fabrication are also included.