Patent ID: 6736953
Filing Date: 2004-05-18
Classification: C25D

Abstract:
A method of forming an electrically conductive structure on a substrate, the method comprising the steps of:(a) forming an electrically conductive electrode layer on the substrate, and (b) forming an electrically conductive conduction layer over the electrode layer by; (i) placing the substrate in a plating solution, (ii) applying a first current to the substrate at a first forward bias and a first density for a first duration, (iii) applying a second current to the substrate at a second reverse bias and a second density for a second duration, and (iv) cyclically applying the first current and the second current at a frequency of between about thirty hertz and about one hundred and thirty hertz, (v) wherein the second density of the second current is between about two times and about four times the first density of the first current.