A cathodic arc cathode is provided with {HEAD ~ an insulating ring} in {TAIL ~ close proximity} to the underside of the cantilevered edge of the target, and with no other conducting surface exposed in the coating system 
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A cathodic arc cathode is provided with { HEAD ~ an insulating ring } in { TAIL ~ close proximity } to the underside of the cantilevered edge of the target , and with no other conducting surface exposed in the coating system
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH