{HEAD ~ The second metal layer} is deposited over the spacer to complete {TAIL ~ the connection} between the first and second metal layers 
{ HEAD ~ The second metal layer } is deposited over the spacer to complete { TAIL ~ the connection } between the first and second metal layers
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH