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 7022577 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 04, 2006

Filed:

Jun. 08, 2004
Applicant:

Narayanan Meyyappan, Penang, MY;

Inventor:

Narayanan Meyyappan, Penang, MY;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/336 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a method of fabricating a semiconductor device. In specific embodiments, the method comprises providing a semiconductor substrate, and ion implanting dopant impurities over a time period into the semiconductor device by varying an ion energy of implanting the dopant impurities over the time period. The dopant impurities are activation annealed to form one or more doped regions extending below the surface of the semiconductor substrate. The ion energy may be varied continuously or in a stepwise manner over the time period, and may also be varied in a cyclical manner.


Find Patent Forward Citations

Quick Actions:

Meyyappan, Narayanan. (2006). Method of forming ultra shallow junctions (U.S. Patent No. 7022577). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7022577

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…