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.

Date of Patent:
Jan. 28, 2020

Filed:

Nov. 08, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Praneet Adusumilli, Albany, NY (US);

Emre Alptekin, Wappingers Falls, NY (US);

Christian Lavoie, Pleasantville, NY (US);

Ahmet S. Ozcan, San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 21/285 (2006.01); H01L 21/8234 (2006.01); H01L 29/78 (2006.01); H01L 29/04 (2006.01); H01L 29/08 (2006.01);
U.S. Cl.
CPC ...
H01L 29/665 (2013.01); H01L 21/28518 (2013.01); H01L 21/823431 (2013.01); H01L 29/66545 (2013.01); H01L 29/66795 (2013.01); H01L 29/785 (2013.01); H01L 21/823425 (2013.01); H01L 21/823475 (2013.01); H01L 29/045 (2013.01); H01L 29/0847 (2013.01); H01L 2029/7858 (2013.01);
Abstract

A method for forming a salicide includes epitaxially growing source/drain (S/D) regions on a semiconductor fin wherein the S/D regions include (111) facets in a diamond shape and the S/D regions on adjacent fins have separated diamond shapes. A metal is deposited on the (111) facets. A thermally stabilizing anneal process is performed to anneal the metal on the S/D regions to form a silicide on the (111) facets. A dielectric layer is formed over the S/D regions. The dielectric layer is opened up to expose the silicide and to form contact holes. Contacts to the silicide are formed in the contact holes.


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