ELECTRO-PLATING AND APPARATUS FOR PERFORMING THE SAME

摘要

According to the present invention, a method for plating a metal layer on a work piece includes the steps of: exposing a plating solution the surface of the work piece to a plating solution; and providing a first voltage of a negative terminal of a power source to an edge part of the work piece. A second voltage is provided to an inner side of the work piece. The inner side is closer to the center of the work piece than the edge part is. A positive terminal is connected to a metal plate. The metal plate and the work piece are separated from each other by the plating solution and contact the plating solution.