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