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