Patent ID: 7217353
Filing Date: 2007-05-15
Classification: C25D,H01L

Abstract:
1. A method for plating a substrate comprising the steps of: performing a first electrolytic plating process with respect to the substrate in a plating solution until at least one of depressed portions provided in a surface to be plated having a minimum diameter is filled up; after the step of the first electrolytic plating process, rotating the substrate in the plating solution at a first speed of rotation and thereby removing a bubble adsorbed to the substrate; and after the step of removing the bubble, rotating the substrate in the plating solution at a second speed of rotation lower than the first speed of rotation and thereby performing a second electrolytic plating process with respect to the substrate, wherein the second electrolytic plating process is performed with the surface of the substrate to be plated faced downward and the substrate immersed in the plating solution, and a plate film is formed by the steps of the first and second electrolytic plating processes.