Patent ID: 7252745
Filing Date: 2007-08-07
Classification: C23C,H01J

Abstract:
1. An apparatus for the application of coating in a vacuum, comprising: a plurality of substantially opposed cathode chamber pairs, each cathode chamber containing a cathodic arc source and being disposed along a plasma duct in communication with each of the cathode chambers and in communication with a coating chamber containing a substrate holder for mounting substrates to be coated, the substrate holder being positioned off of an optical axis of the cathodic arch source, at least one anode associated with each cathodic arc source for generating an arc discharge, a deflecting system for deflecting a flow of plasma through the plasma duct toward the substrate chamber, and a plurality of magnetic isolating coils each disposed about the plasma duct between cathode chamber pairs, transversely relative to the plasma duct and relative to a direction of the cathodic arc flow through the plasma duct, wherein when an isolating coil is activated a flow of plasma is confined by the isolating coil, and wherein one or more of the isolating coils is surrounded by an anode.