Patent ID: 8225803

Claim:
A substrate processing apparatus comprising: a cleaning treatment unit for carrying out a cleaning treatment of a substrate while sealing a first peripheral portion of the surface of the substrate, said cleaning treatment unit comprising a first seal ring that is brought into contact with and seals the first peripheral portion of the substrate during the cleaning treatment; and a catalyst-imparting treatment unit for carrying out a catalyst-imparting treatment of the substrate while sealing a second peripheral portion of the surface of the substrate, said catalyst-imparting treatment unit comprising a second seal ring that is brought into contact with the second peripheral portion of the substrate during the catalyst-imparting treatment, said second seal ring having a narrower opening area than that of said first seal ring so that the cleaning treatment is carried out in a concentrically wider area of the surface of the substrate than the area to which the catalyst is imparted in the catalyst-imparting treatment.