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