The angle of the tapered edge 1204 can be further controlled by controlling the angle of the ion beam deposition and {HEAD ~ the thickness} of {TAIL ~ layer} 1006 
The angle of the tapered edge 1204 can be further controlled by controlling the angle of the ion beam deposition and { HEAD ~ the thickness } of { TAIL ~ layer } 1006
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH