Patent ID: 6500317
Filing Date: 2002-12-31
Classification: C25D,G01R

Abstract:
A plating apparatus for plating a substrate, comprising: a plating bath; an electrode disposed in the plating bath; a substrate mounted opposite the electrode and having a conductive area on its surface; a plating jig disposed in the plating bath for retaining the substrate and having a plurality of feeder contacts for contacting the conductive area on the surface of the substrate; a voltage supplying device for applying a voltage to supply a predetermined current between the plurality of feeder contacts and the electrode, thereby generating a current flowing for plating the substrate through the feeder contacts; wherein,the feeder contacts of the plating jig are electrically separated from each other; and for each feeder contact, one end of a reverse-current blocking diode is connected to wiring connecting the feeder contact, and the other end of the reverse-current blocking diode is connected to wiring connecting said voltage supplying device; and a conductivity state detecting device is provided for detecting the conductivity between each of the feeder contacts on the plating jig and the conductive area on the surface of the substrate.