depositing on the etched and treated surface a layer of copper having {HEAD ~ a thickness} of from {TAIL ~ about 5 Angstroms} to about 50 Angstroms; and 
of from
depositing on the etched and treated surface a layer of copper having { HEAD ~ a thickness } of from { TAIL ~ about 5 Angstroms } to about 50 Angstroms ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH