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:
Dec. 25, 2012
Filed:
Dec. 08, 2008
Ping-chun Yeh, Taichung, TW;
Der-chyang Yeh, Hsinchu, TW;
Ruey-hsin Liu, Hsinchu, TW;
Mingo Liu, Hsinchu, TW;
Ping-Chun Yeh, Taichung, TW;
Der-Chyang Yeh, Hsinchu, TW;
Ruey-Hsin Liu, Hsinchu, TW;
Mingo Liu, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
An integrated circuit structure has a metal silicide layer formed on an n-type well region, a p-type guard ring formed on the n-type well region and encircling the metal silicide layer. The outer portion of the metal silicide layer extends to overlap the inner edge of the guard ring, and a Schottky barrier is formed at the junction of the internal portion of the metal silicide layer and the well region. A conductive contact is in contact with the internal portion and the outer portion of the metal silicide layer.