Patent ID: 7354481
Filing Date: 2008-04-08
Classification: H01L,Y10S,Y10T

Abstract:
1. A substrate holding and rotating apparatus for holding and rotating a substrate, comprising: a spin base connected to a rotary shaft and rotatable therearound; holding members attached to the spin base and displaceable between holding positions at which the holding members come in contact with a peripheral edge of the substrate such that the holding members are capable of holding the substrate, and retreat positions at which the holding members are retreated from the holding positions; a holding-member drive mechanism for driving the holding members between the holding positions and the retreat positions; and a rotation regulating mechanism arranged to be brought, in association with an operation of the holding-member drive mechanism, into a rotation allowing state where the spin base is allowed to be rotated and into a rotation regulating state where the rotation of the spin base is regulated; wherein the holding-member drive mechanism includes: a drive source; a moving member arranged to be moved upon reception of a drive force from the drive source; and a drive force transmitting mechanism for transmitting the motion of the moving member to the holding members, and the rotation regulating mechanism includes an engagement portion provided on the rotary shaft or the spin base; and a lock member provided on the moving member, the lock member being arranged to be brought into an engagement state where the lock member is engaged with the engagement portion by the movement of the moving member and into a disengagement state where the lock member is disengaged from the engagement portion.