{HEAD ~ Method} for simultaneously forming {TAIL ~ thinner and thicker parts} of a dual oxide layer having varying thicknesses 
for simultaneously forming
{ HEAD ~ Method } for simultaneously forming { TAIL ~ thinner and thicker parts } of a dual oxide layer having varying thicknesses
HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH