Upper shields 218 are formed above the gaps via {HEAD ~ conventional processes}, such as {TAIL ~ photolithographic deposition} or milling 
such as
Upper shields 218 are formed above the gaps via { HEAD ~ conventional processes } , such as { TAIL ~ photolithographic deposition } or milling
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH