{HEAD ~ A three dimensional crossbar array} and a fabrication method thereof is provided for reducing {TAIL ~ the number} of lithography steps 
is provided for reducing
{ HEAD ~ A three dimensional crossbar array } and a fabrication method thereof is provided for reducing { TAIL ~ the number } of lithography steps
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH