forming {TAIL ~ a second layer} of dielectric material overlying the first layer of dielectric material and {HEAD ~ the plurality} of carbon nanotubes 
forming { TAIL ~ a second layer } of dielectric material overlying the first layer of dielectric material and { HEAD ~ the plurality } of carbon nanotubes
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH