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:
Aug. 22, 2006

Filed:

Apr. 29, 2004
Applicants:

Hiroshi Watanabe, Yokohama, JP;

Kiyomi Naruke, Sagamihara, JP;

Kazunori Masuda, Yokkaichi, JP;

Inventors:

Hiroshi Watanabe, Yokohama, JP;

Kiyomi Naruke, Sagamihara, JP;

Kazunori Masuda, Yokkaichi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/8247 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is a semiconductor device comprising a first transistor and a second transistor formed on a semiconductor substrate, wherein a gate side wall of the second transistor has a thickness equal to that of a gate side wall of the first transistor, wherein each of the first and second transistors has an inner low impurity diffusion region and an outer high impurity diffusion region, and wherein the size of the inner low impurity diffusion region of the second transistor along the surface of the semiconductor substrate is larger than that of the inner low impurity diffusion region of the first transistor.


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