Method and arrangement for stabilizing an arc between an anode and a cathode particularly for vacuum coating devices
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United States of America Patent
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Feb 7, 1995
Issued Date -
N/A
app pub date -
Jan 21, 1993
filing date -
Feb 3, 1987
priority date (Note) -
Expired
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Abstract
A shield to limit an electric arc discharge between an anode and a cathode to a designated portion of the cathode surface is fashioned in the shape of a limiting ring with good electrically conducting surface, e.g., copper or aluminum, surrounding this surface. Application of the invention, especially with heavy current arc discharges causes the tracing point of the discharge to move stochastically back and forth on the cathode.
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