A semiconductor isolation structure 1, wherein said semiconductor substrate is silicon and {HEAD ~ said insulator material} is {TAIL ~ an oxide} 
is
A semiconductor isolation structure 1 , wherein said semiconductor substrate is silicon and { HEAD ~ said insulator material } is { TAIL ~ an oxide }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL