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. 08, 2007
Filed:
Aug. 23, 2004
Ashraf W. Lotfi, Bridgewater, NJ (US);
Jian Tan, Bridgewater, NJ (US);
Ashraf W. Lotfi, Bridgewater, NJ (US);
Jian Tan, Bridgewater, NJ (US);
Enpirion, Inc., Bridgewater, NJ (US);
Abstract
An integrated circuit formed on a semiconductor substrate and configured to accommodate higher voltage devices and low voltage devices therein. In one embodiment, the integrated circuit includes a transistor having a gate located over a channel region recessed into a semiconductor substrate, and a source/drain including a lightly doped region located adjacent the channel region and a heavily doped region located adjacent the lightly doped region. The transistor also includes an oppositely doped well located under and within the channel region. The transistor still further includes a doped region, located between the heavily doped region and the oppositely doped well, having a doping concentration profile less than a doping concentration profile of the heavily doped region. The integrated circuit also includes a driver switch of a driver formed on the semiconductor substrate.