Patent ID: 8166985

Claim:
A substrate cleaning apparatus comprising: a substrate holding and rotating device that rotates a substrate while holding the substrate; a first cleaner for cleaning an outer edge of the substrate; and a first cleaner moving mechanism that moves the first cleaner, wherein the substrate holding and rotating device includes a rotating member provided so as to be rotatable around a rotation axis, a rotation-driving mechanism that rotates the rotating member, a plurality of holding members provided on the rotating member so as to be switchable between a substrate held state where they are abutted against the outer edge of the substrate to hold the substrate and a substrate released state where they are spaced apart from the outer edge of the substrate, and a holding member switching mechanism that switches the plurality of holding members between the substrate held state and the substrate released state, each of the plurality of holding members rotates around the rotation axis through a first region and a second region along the outer edge of the substrate as the rotation-driving mechanism rotates the rotating member, the holding member switching mechanism brings the holding members positioned in the first region into the substrate held state while bringing any holding member positioned in the second region into the substrate released state during the rotation of the rotating member, and the first cleaner moving mechanism moves the first cleaner to the second region when the holding members positioned in the first region is in the substrate held state while the holding members positioned in the second region is in the substrate released state.