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