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:
Apr. 06, 2010
Filed:
Feb. 28, 2007
Frederick Gustav Anderson, South Burlington, VT (US);
Robert Mark Rassel, Colchester, VT (US);
Nicholas Theodore Schmidt, Colchester, VT (US);
Xudong Wang, Groton, MA (US);
Frederick Gustav Anderson, South Burlington, VT (US);
Robert Mark Rassel, Colchester, VT (US);
Nicholas Theodore Schmidt, Colchester, VT (US);
Xudong Wang, Groton, MA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Structure and methods for a differential junction varactor. The structure includes: a silicon first region formed in a silicon substrate, the first region of a first dopant type; and a plurality of silicon second regions in physical and electrical contact with the first region, the plurality of second regions spaced apart and not in physical contact with each other, the plurality of second regions of a second dopant type, the first dopant type different from the second dopant type; a cathode terminal electrically connected to the first region; a first anode terminal electrically connected to a first set of second regions of the plurality of second regions; and a second anode terminal electrically connected to a second set of second silicon regions of the plurality of second regions, second regions of the first set of second regions alternating with second regions of the second set of second regions.