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:
Jan. 22, 1991
Filed:
Jan. 18, 1989
Werner Katzschner, Kleinkahl-Grosslaudenbach, DE;
Stefan Eichholz, Kiel, DE;
Michael Geisler, Wachtersbach, DE;
Michael Jung, Kahl, DE;
Leybold AG, , DE;
Abstract
The invention relates to a particle source with which positive, negative, and neutral particles can be generated and applied on a substrate. The particle source comprises a container (26) in which a gas or gas mixture to be ionized is held. Into this container (26) an electromagnetic wave irradiates which preferably is a microwave. A torus-shaped magnetic field, which is generated with the aid of permanent magnets (32, 33) or electromagnets, simultaneously projects into the container (26). With the aid of a special control grid configuration (38, 39, 40) it becomes possible to draw off positive, negative or neutral particles from the container (26).