{TAIL ~ A second polysilicon layer} 13, or {HEAD ~ polylayer}, is, thereupon, deposited into the trench 5 
{ TAIL ~ A second polysilicon layer } 13 , or { HEAD ~ polylayer } , is , thereupon , deposited into the trench 5
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH