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. 09, 2004
Filed:
Aug. 14, 2002
Applicant:
Inventor:
Ta-Lee Yu, Hsinchu Hsien, TW;
Assignee:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/3485 ;
U.S. Cl.
CPC ...
H01L 2/3485 ;
Abstract
A seal ring structure having an electrostatic discharge protection function, suitable for a conductive first-type substrate which has a bias provided by a second power source. The new seal ring scheme including a conductive second-type doped diffusion region located on the first-type substrate; and a metal conductive structure, comprising at least a metal layer and a connection conductor, wherein the connection conductor is connected to the conductive second-type doped diffusion region and to a bias provided by a first power source and to the metal layer.