Patent ID: 6482300
Filing Date: 2002-11-19
Classification: C25D,H01L,Y10S

Abstract:
cup-shaped plating apparatus comprising:plating tank having an inside, an outside, and a bottom; a wafer support section provided along an upper opening of the plating tank; a plurality of remotely situated solution-outlet passages provided below the wafer support section and extending from the inside to the outside of the plating tank; and a stirring device directly adjacent to a solution-outlet passage; and at least one solution-supply pipe provided through the bottom of the plating tank which permits the supply of a plating solution through the at least one solution-supply pipe, to form a plurality of outward flows passing through the solution-outlet passages to reach the outside of the plating tank; and during passage inside the plating tank, contacting a surface of a wafer mounted on the wafer support section to thereby carry out a plating treatment on the wafer, and the stirring device in the cup-shaped plating apparatus is disc shaped and has an opening in the center thereof for effecting a forced agitation below the surface of the plating solution.