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. 30, 2012

Filed:

Jan. 28, 2010
Applicants:

Xiangdong Chen, Poughquag, NY (US);

Geng Wang, Stormville, NY (US);

Da Zhang, Hopewell Junction, NY (US);

Inventors:

Xiangdong Chen, Poughquag, NY (US);

Geng Wang, Stormville, NY (US);

Da Zhang, Hopewell Junction, NY (US);

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and structure implant a first-type impurity within a substrate to form a channel region within the substrate adjacent a top surface of the substrate; form a gate stack on the top surface of the substrate above the channel region; and implant a second-type impurity within the substrate to form source and drain regions within the substrate adjacent the top surface. The channel region is positioned between the source and drain regions. The second-type impurity has an opposite polarity with respect to the first-type impurity. The method and structure implant a greater concentration of the first-type impurity, relative to a concentration of the first-type impurity within the channel region, to form a primary body doping region within the substrate below (relative to the top surface) the channel region; and to form secondary body doping regions within the substrate below (relative to the top surface) the source and drain regions.


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