{TAIL ~ The gate structure} 120 may include a buffer layer , a dielectric layer 122 and {HEAD ~ a gate layer} 124 
{ TAIL ~ The gate structure } 120 may include a buffer layer , a dielectric layer 122 and { HEAD ~ a gate layer } 124
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH