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:
Oct. 09, 2012
Filed:
Jun. 08, 2011
Sriram Balasubramanian, Fremont, CA (US);
Sriram Balasubramanian, Fremont, CA (US);
GLOBALFOUNDRIES, Inc., Grand Cayman, KY;
Abstract
MOS structures that exhibit lower contact resistance and methods for fabricating such MOS structures are provided. In one method, a semiconductor substrate is provided and a gate stack is fabricated on the semiconductor substrate. With the gate stack serving as a mask, impurity dopants are implanted into a semiconductor material having a first surface and disposed proximate to the gate stack. A trench is etched into the semiconductor material such that the semiconductor material has a trench surface within the trench. Further, a metal silicide layer is formed on the first surface of the semiconductor material and on the trench surface. Also, a contact to at least a portion of the metal silicide layer on the first surface and at least a portion of the metal silicide layer on the trench surface is fabricated.