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.:
Date of Patent:
Aug. 10, 2004
Filed:
Oct. 15, 2002
Applicant:
Inventors:
Stephen F. Agnew, San Diego, CA (US);
Sergei Putvinski, La Jolla, CA (US);
Assignee:
Archimedes Technology Group, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 1/432 ;
U.S. Cl.
CPC ...
C23C 1/432 ;
Abstract
A fluorine generator includes a vacuum chamber filled with a working gas. An r-f antenna is positioned outside the chamber across a dielectric window from a potassium fluoride (KF) source located in the chamber. The r-f antenna radiates through the window to heat the working gas and sublime the PK source to create a plasma. Crossed electric and magnetic fields in the chamber drive the heavier potassium ions in the plasma toward a collector in the chamber while confining the lighter fluorine and working gas ions for evacuation from the chamber.