Patent ID: 7781318
Filing Date: 2010-08-24
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device, comprising: forming an interlayer dielectric layer comprising a via hole on a semiconductor substrate; forming a first layer on the interlayer dielectric layer including the via hole using a ruthenium material; forming a second layer directly on the first layer through an anodizing process, wherein the second layer comprises ruthenium oxide (RuO forming a copper layer on the second layer using the second layer as a seed layer; and forming a metal line in the via hole using the copper layer, wherein forming the second layer directly on the first layer through the anodizing process comprises performing the anodizing process with respect to the first layer, wherein forming the second layer directly on the first layer through the anodizing process comprises reacting the ruthenium (Ru) of the first layer with hydroxyl radical (OH) solution by an anode current.