B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
B05B 5/06 (2006.01) B05B 5/08 (2006.01) B05B 12/00 (2006.01) C23C 14/32 (2006.01) C23C 14/35 (2006.01)
Patent
CA 2061809
An apparatus and method are described for depositing a coating onto a substrate using vacuum arc evaporation from a substantially cylindrical cathode. An axial magnetic field is disclosed to force the motion of the arc into an open helical trajectory on the cathode surface. Means are also provided for controlling the speed and direction of the arc along the cathode by varying the division of input current between the ends of the cathode. Improved uniformity of cathode erosion and coating thickness are thereby achieved, along with a reduction in the number and size of splattered droplets incorporated into the coating.
Sim & Mcburney
Vapor Technologies Inc.
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