said sidewall surface of said {HEAD ~ main part} including {TAIL ~ a sharply pointed tip end part} defined by two crystal surfaces and located at a lower side of an interface between said gate insulation film and said silicon substrate 
including
said sidewall surface of said { HEAD ~ main part } including { TAIL ~ a sharply pointed tip end part } defined by two crystal surfaces and located at a lower side of an interface between said gate insulation film and said silicon substrate
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH