{HEAD ~ The silicon} underneath the polysilicon gates 320 a and {TAIL ~ 320 b} is not removed 
underneath
{ HEAD ~ The silicon } underneath the polysilicon gates 320 a and { TAIL ~ 320 b } is not removed
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH