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 7906798 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 15, 2011

Filed:

Dec. 04, 2007
Applicants:

Hiroyuki Ohta, Kawasaki, JP;

Katsuaki Ookoshi, Kawasaki, JP;

Inventors:

Hiroyuki Ohta, Kawasaki, JP;

Katsuaki Ookoshi, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/092 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor device includes an NMOS transistor and a PMOS transistor. The NMOS transistor includes a channel area formed in a silicon substrate, a gate electrode formed on a gate insulating film in correspondence with the channel area, and a source area and a drain area formed in the silicon substrate having the channel area situated therebetween. The PMOS transistor includes another channel area formed in the silicon substrate, another gate electrode formed on another gate insulating film in correspondence with the other channel area, and another source area and another drain area formed in the silicon substrate having the other channel area situated therebetween. The gate electrode has first sidewall insulating films. The other gate electrode has second sidewall insulating films. The distance between the second sidewall insulating films and the silicon substrate is greater than the distance between the first sidewall insulating films and the silicon substrate.


Find Patent Forward Citations

Ohta, Hiroyuki. (2011). Semiconductor device having buffer layer between sidewall insulating film and semiconductor substrate (U.S. Patent No. 7906798). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7906798

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