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 8022486 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 20, 2011

Filed:

Jul. 30, 2007
Applicants:

Katsuyuki Sekine, Yokohama, JP;

Tomonori Aoyama, Yokohama, JP;

Takuya Kobayashi, Yokohama, JP;

Inventors:

Katsuyuki Sekine, Yokohama, JP;

Tomonori Aoyama, Yokohama, JP;

Takuya Kobayashi, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01); H01L 29/94 (2006.01); H01L 31/062 (2006.01); H01L 31/113 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor device includes a semiconductor substrate, and a p-channel MOS transistor provided on the semiconductor substrate, the p-channel MOS transistor comprising a first gate dielectric film including Hf, a second gate dielectric film provided on the first gate dielectric film and including aluminum oxide, and a first metal silicide gate electrode provided on the second gate dielectric film.


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