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:
Oct. 21, 2014

Filed:

Oct. 18, 2012
Applicants:

Haibo Xiao, Shanghai, CN;

Wayne Bao, Shanghai, CN;

Yanlei Ping, Shanghai, CN;

Inventors:

Haibo Xiao, Shanghai, CN;

Wayne Bao, Shanghai, CN;

Yanlei Ping, Shanghai, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/78 (2006.01); H01L 21/285 (2006.01);
U.S. Cl.
CPC ...
Abstract

Exemplary embodiments provide materials and methods for forming a metal silicide layer and/or an NMOS transistor. The metal silicide layer can be formed by heating a metal layer containing at least a tellurium element on a semiconductor substrate. The metal silicide layer can thus contain at least the tellurium element on the semiconductor substrate. The metal silicide layer can be formed in an NMOS transistor. With the addition of tellurium element in the metal silicide layer, Schottky barrier height between the metal silicide layer and the underling semiconductor substrate can be reduced. Contact resistance of the NMOS transistor can also be reduced.


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