Patent ID: 7119018
Filing Date: 2006-10-10
Classification: C25D,H01L

Abstract:
1. A method of making a conducting material comprising: providing an underlayer; contacting the underlayer with a seed layer, wherein the seed layer comprises copper and one or more metals selected from the group consisting of iridium, osmium and rhenium; depositing a conducting layer comprising copper on the seed layer, and annealing the conducting layer at a temperature sufficient to cause grain growth in the conducting layer, yet minimize the migration of the one or more metals from the seed layer to the conducting layer; polishing the conducting layer to provide a polished copper surface material; and annealing the polished copper surface material at a temperature to cause migration of the one or more metals from the seed layer to the polished surface to provide a copper conductor core region in contact with an interfacial region, wherein the interfacial region and the copper conductor core region comprise the one or more metals.