{HEAD ~ The sidewalls} of the vias may then be coated with memristive metal oxide film, and the interior may be filled with {TAIL ~ a metal core} 
{ HEAD ~ The sidewalls } of the vias may then be coated with memristive metal oxide film , and the interior may be filled with { TAIL ~ a metal core }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL