It also eliminates {HEAD ~ any ring} around {TAIL ~ the top side} of the target, allowing the entire area of the cathode to provide the coating 
around
It also eliminates { HEAD ~ any ring } around { TAIL ~ the top side } of the target , allowing the entire area of the cathode to provide the coating
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH