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:
Dec. 17, 2013
Filed:
Aug. 27, 2012
Chia-chung Chen, Keelung, TW;
Chewn-pu Jou, Hsinchu, TW;
Chin Wei Kuo, Zhubei, TW;
Sally Liu, Hsinchu, TW;
Chia-Chung Chen, Keelung, TW;
Chewn-Pu Jou, Hsinchu, TW;
Chin Wei Kuo, Zhubei, TW;
Sally Liu, Hsinchu, TW;
Abstract
In at least one embodiment, a method of manufacturing a varactor includes forming a well over a substrate. The well has a first type doping. A first source region and a second source region are formed in the well, and the first source region and the second source region have a second type doping. A drain region is formed in the well, and the drain region has the first type doping. A first gate region is formed over the well between the drain region and the first source region. Moreover, a second gate region is formed over the well between the drain region and the second source region.