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.:

US 9214541 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 15, 2015

Filed:

Feb. 28, 2013
Applicant:

Globalfoundries Inc., Grand Cayman, KY (US);

Inventors:

Ravikumar Ramachandran, Pleasantville, NY (US);

Ying Li, Newburgh, NY (US);

Richard S. Wise, Newburgh, NY (US);

Assignee:

GLOBALFOUNDRIES INC., Grand Cayman, KY;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 29/78 (2006.01); H01L 21/768 (2006.01); H01L 29/66 (2006.01); H01L 21/8238 (2006.01); H01L 29/49 (2006.01); H01L 29/51 (2006.01);
U.S. Cl.
CPC ...
H01L 29/78 (2013.01); H01L 21/76895 (2013.01); H01L 21/76897 (2013.01); H01L 29/66545 (2013.01); H01L 29/66606 (2013.01); H01L 29/7833 (2013.01); H01L 29/7843 (2013.01); H01L 21/823842 (2013.01); H01L 21/823871 (2013.01); H01L 29/49 (2013.01); H01L 29/51 (2013.01);
Abstract

A conductive top surface of a replacement gate stack is recessed relative to a top surface of a planarization dielectric layer by at least one etch. A dielectric capping layer is deposited over the planarization dielectric layer and the top surface of the replacement gate stack so that the top surface of a portion of the dielectric capping layer over the replacement gate stack is vertically recessed relative to another portion of the dielectric layer above the planarization dielectric layer. The vertical offset of the dielectric capping layer can be employed in conjunction with selective via etch processes to form a self-aligned contact structure.


Find Patent Forward Citations

Ramachandran, Ravikumar. (2015). Self-aligned contact for replacement gate devices (U.S. Patent No. 9214541). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9214541

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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