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:
Jul. 24, 2012
Filed:
Feb. 12, 2010
Applicant:
Andrew E. Carlson, Franklin, MA (US);
Inventor:
Andrew E. Carlson, Franklin, MA (US);
Assignee:
Advanced Micro Devices, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01); H01L 29/788 (2006.01);
U.S. Cl.
CPC ...
Abstract
A decoupling capacitor includes a pair of MOS capacitors formed in wells of opposite plurality. Each MOS capacitor has a set of well-ties and a high-dose implant, allowing high frequency performance under accumulation or depletion biasing. The top conductor of each MOS capacitor is electrically coupled to the well-ties of the other MOS capacitor and biased consistently with logic transistor wells. The well-ties and/or the high-dose implants of the MOS capacitors exhibit asymmetry with respect to their dopant polarities.