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 7994073 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 09, 2011

Filed:

Nov. 15, 2007
Applicants:

Jiong-ping LU, Richardson, TX (US);

Periannan Chidambaram, Richardson, TX (US);

Srinivasan Chakravarthi, Murphy, TX (US);

Inventors:

Jiong-Ping Lu, Richardson, TX (US);

Periannan Chidambaram, Richardson, TX (US);

Srinivasan Chakravarthi, Murphy, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/31 (2006.01);
U.S. Cl.
CPC ...
Abstract

A low stress sacrificial cap layerhaving a silicon oxide liner film, a low stress silicon film, and a silicon nitride film. Alternatively, a low stress sacrificial cap layerhaving a silicon oxide liner filmand a graded silicon nitride film. Also, methodsfor fabricating a transistorhaving a low stress sacrificial cap layer


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