Graphoepitaxial conductor cores in integrated circuit interconnects

摘要

A manufacturing method is provided for an integrated circuit having a semiconductor substrate with a semiconductor device. A device dielectric layer is formed on the semiconductor substrate. A channel dielectric layer on the device dielectric layer has an opening formed therein. A barrier layer lines the channel opening. A conductor core with a random grain texture fills the opening over the barrier layer. The crystallographic orientation of the conductor core is then graphoepitaxially changed to reduce its random grain texture.