Patent ID: 7608163

Claim:
A substrate processing apparatus for processing substrates, comprising a rotor having holding members for holding peripheries of the substrates, the rotor rotating the substrates thereby processing the substrates, one of the holding members having press devices for applying pressures on the peripheries of a plurality of the substrates, the press devices having respective abutting parts, each of the press devices being configured to cause the abutting part thereof to come into elastic contact with or depart from the periphery of a corresponding one of the substrates by fluid pressure in a direction parallel to a surface of the corresponding substrate, the press devices of said one of the holding members pressing the corresponding substrates against another holding member to hold the corresponding substrates, respectively, the substrate processing apparatus further comprising a pressure device configured to apply the fluid pressure to the press devices; and a suction device configured to reduce the fluid pressure applied to the press devices.