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:
Mar. 28, 2017
Filed:
Nov. 08, 2007
Applicants:
Jürgen Ramm, Maienfeld, CH;
Christian Wohlrab, Feldkirch, AT;
Inventors:
Jürgen Ramm, Maienfeld, CH;
Christian Wohlrab, Feldkirch, AT;
Assignee:
OERLIKON SURFACE SOLUTIONS AG, PFAFFIKON, PFAFFIKON SZ, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/08 (2006.01); C23C 14/32 (2006.01); C23C 14/00 (2006.01); H01J 37/32 (2006.01);
U.S. Cl.
CPC ...
C23C 14/325 (2013.01); C23C 14/0021 (2013.01); C23C 14/08 (2013.01); C23C 14/081 (2013.01); H01J 37/32055 (2013.01); H01J 37/32064 (2013.01);
Abstract
The invention relates to a method for operating an arc source, whereby an electric spark discharge is ignited and run on the surface of a target and the spark discharge is simultaneously fed a direct current with an associated constant voltage DV as well as a pulsed current generated by a periodically applied voltage signal. The voltage at the arc source is boosted over several microseconds and the shape of the voltage signal is in essence arbitrarily selectable.