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