Patent ID: 7208074

Claim:
A method of processing a treatment surface of a substrate, said method comprising: holding and rotating the substrate by a substrate holder such that the treatment surface of the substrate faces upward; horizontally moving a first treatment head between the substrate holder and a first retracting portion; electrically contacting the treatment surface of the substrate to a treatment-surface-contacting electrode during said holding; supplying a plating liquid from the first treatment head to the treatment surface of the substrate during said holding so as to electrically connect a first-treatment-head electrode in the first treatment head and the treatment-surface-contacting electrode to each other; performing a first metal plating process using the plating liquid on the treatment surface of the substrate by the first treatment head during said holding; horizontally moving a second treatment head between the substrate holder and a second retracting portion; supplying a second liquid from the second treatment head to the treatment surface of the substrate during said holding; performing a second metal plating process using the second liquid on the treatment surface of the substrate by the second treatment head during said holding; and positioning one of the first treatment head and the second treatment head away from a position above the substrate holder when the other of the first treatment head and the second treatment head is positioned at a corresponding one of the first retracting portion and the second retracting portion.