{HEAD ~ A portion} of {TAIL ~ the conductive spacer layer} is removed to leave a conductive spacer within the opening 
of
{ HEAD ~ A portion } of { TAIL ~ the conductive spacer layer } is removed to leave a conductive spacer within the opening
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH