Patent ID: 7632382
Filing Date: 2009-12-15
Classification: C25D,H01L

Abstract:
1. A plating apparatus comprising: a frame configured to be placed on a substrate so that a plating bath is formed by said frame and the substrate, said frame including a conductive core and a seal member covering said conductive core; a non-conductive porous member configured to be immersed in an electrolytic plating solution held in the plating bath; a counter electrode disposed on said non-conductive porous member so as to face the substrate with a predetermined distance from the substrate; a feed contact configured to be brought into contact with a peripheral portion of the substrate outside of said frame; a power source operable to apply a voltage between said counter electrode and the substrate; and a potential adjuster operable to control a potential of said conductive core of said frame with respect to a potential of the substrate.