By way of contrast, with the present invention, a gap between the cantilevered underside of the target and the insulator ring keeps the arc from close proximity to the insulator, allowing for {HEAD ~ higher power} to be applied to {TAIL ~ the cathode} without damage 
By way of contrast , with the present invention , a gap between the cantilevered underside of the target and the insulator ring keeps the arc from close proximity to the insulator , allowing for { HEAD ~ higher power } to be applied to { TAIL ~ the cathode } without damage
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