removing at least one portion of the plurality of carbon nanotubes to expose {HEAD ~ at least one portion} of {TAIL ~ the semiconductor substrate} within the plurality of carbon nanotubes 
of
removing at least one portion of the plurality of carbon nanotubes to expose { HEAD ~ at least one portion } of { TAIL ~ the semiconductor substrate } within the plurality of carbon nanotubes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH