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:
Nov. 24, 1992
Filed:
Oct. 30, 1991
Applicant:
Inventors:
Scott O Frake, Santa Clara, CA (US);
Roger D Carpenter, Cupertino, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G / ; H01L / ;
U.S. Cl.
CPC ...
361313 ; 257516 ;
Abstract
A capacitor is formed in three adjacent conductive layers of a semiconductor integrated circuit chip. A first plate of the capacitor is formed in the middle layer. A second plate is formed in the upper and lower layers plus a small portion of the middle layer which interconnects the upper and lower layers and forms a U-shaped structure surrounding the first plate. These capacitors are preferably formed in pairs with the first plates interconnected. The second plates may be connected to different voltage supplies to form a capacitive voltage divider.