A method of constructing a conductive via spacer within a dielectric layer located between a first metal layer and a second metal layer includes the steps of depositing {HEAD ~ a conductive spacer layer} within the opening and over {TAIL ~ the first metal layer} 
A method of constructing a conductive via spacer within a dielectric layer located between a first metal layer and a second metal layer includes the steps of depositing { HEAD ~ a conductive spacer layer } within the opening and over { TAIL ~ the first metal layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL