Patent ID: 6610182
Filing Date: 2003-08-26
Classification: C25D

Abstract:
A cup-shaped plating apparatus in which:a plating solution is supplied to a wafer which is placed on a wafer support provided along an opening at a top of a plating tank from a solution-supply port provided at a bottom of the plating tank by an upward-moving stream; the plating solution is made to flow out of a solution-outlet port provided for the plating tank; and plating is preformed while die plating solution is brought in contact with a surface of the placed wafer, which is to be plated, wherein the solution-outlet port is provided with a solution-outlet path for isolating discharged plating solution from an outer space; and wherein the cup-shaped plating apparatus comprises means for pressing a wafer against the wafer support, which means for pressing is attached via an intermediate shaft to a shutting means, which shutting means is formed in a cover shape corresponding to the open top of the plating tank and which is capable of closing the open top of the plating tank; a supporting arm having an end thereof attached to the shaft, which supporting arm comprises a rotary motor for switching the position of the means for pressing and the shutting means by rotating them along a horizontal axis.