The non magnetic bump layer 1202 is preferably deposited by {HEAD ~ ion beam deposition}, and {TAIL ~ shadowing} from the overhanging bi layer mask 1004 allows the edge 1204 to have the desired tapered shape 
The non magnetic bump layer 1202 is preferably deposited by { HEAD ~ ion beam deposition } , and { TAIL ~ shadowing } from the overhanging bi layer mask 1004 allows the edge 1204 to have the desired tapered shape
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH