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:
Aug. 09, 2011
Filed:
Nov. 21, 2008
Patrick J. Quinn, Dublin, IE;
Patrick J. Quinn, Dublin, IE;
Xilinx, Inc., San Jose, CA (US);
Abstract
A capacitor in an integrated circuit ('IC') includes a core capacitor portion having first conductive elements electrically connected to and forming a part of a first node of the capacitor formed in a first layer and second conductive elements electrically connected to and forming a part of a second node of the capacitor formed in the first layer. The first and second conductive elements alternate in the first conductive layer. Third conductive elements electrically connected to and forming a part of the first node are formed in a second layer adjacent to the first layer. The capacitor also includes a shield capacitor portion having fourth conductive elements formed in at least first, second, third, and fourth layers. The shield capacitor portion is electrically connected to and forms a part of the second node of the capacitor and surrounds the first and third conductive elements.