Patent ID: 8225737
Filing Date: 2012-07-24
Classification: G03F,H01L,Y10T

Abstract:
1. A coating apparatus comprising: a substrate holding member configured to hold a substrate in a horizontal state; a coating liquid supply mechanism configured to supply a coating liquid onto a front side central portion of the substrate held on the substrate holding member; a driving unit configured to rotate the substrate holding member about a vertical axis to spread the coating liquid supplied on the front side central portion of the substrate toward a front side peripheral portion of the substrate by a centrifugal force; a wobble damping mechanism including a gas delivery port and a suction port both disposed to face a back side of the substrate and configured to damp a wobble of the substrate being rotated by delivering a gas from the delivery port and sucking the gas into the suction port, and an elevating mechanism configured to move up and down the wobble damping mechanism between a working position for damping the wobble of the substrate and a waiting position below the working position.