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:
Jun. 12, 2007

Filed:

May. 31, 2004
Applicants:

Ken Nakanishi, Kashihara, JP;

Hiroshi Aichi, Matsusaka, JP;

Inventors:

Ken Nakanishi, Kashihara, JP;

Hiroshi Aichi, Matsusaka, JP;

Assignee:

Sharp Kabushiki Kaisha, Osaka-Shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An ion doping system includes a chamber, an exhausting sectionfor exhausting gases from the chamber, an ion sourceprovided for the chamber, and an accelerating sectionfor extracting the ions, generated in the ion source, from the ion sourceand accelerating the ions toward a target. The ion sourceincludes an inlet portto introduce a gas including a dopant element, a filamentemitting thermo electrons, and an anode electrodeto produce an arc discharge between the filament and itself. The ion sourcedecomposes the gas through the arc discharge, thereby generating ions including the dopant element. The ion doping system controls the arc discharge such that a constant amount of arc current flows between the filament and the anode electrode.


Find Patent Forward Citations

Nakanishi, Ken. (2007). Ion doping system, ion doping method and semiconductor device (U.S. Patent No. 7230256). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7230256

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

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