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. 29, 2012
Filed:
Nov. 19, 2008
Applicants:
Tung-hsing Lee, Taipei County, TW;
Tien-chang Chang, Hsinchu, TW;
Yuan-hung Chung, Hsinchu County, TW;
Inventors:
Tung-Hsing Lee, Taipei County, TW;
Tien-Chang Chang, Hsinchu, TW;
Yuan-Hung Chung, Hsinchu County, TW;
Assignee:
Mediatek Inc., Science-Based Industrial Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/552 (2006.01); H01L 29/76 (2006.01); H01L 29/94 (2006.01); H01L 31/062 (2006.01); H01L 31/113 (2006.01); H01L 31/119 (2006.01); H01L 31/00 (2006.01); H01L 23/58 (2006.01); H01L 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A seal ring structure disposed along a periphery of an integrated circuit. The seal ring is divided into at least a first portion and a second portion. The second portion is positioned facing and shielding an analog and/or RF circuit block from a noise. A deep N well is disposed in a P substrate and is positioned under the second portion. The deep N well reduces the substrate noise coupling.