Patent ID: 8132526
Filing Date: 2012-03-13
Classification: B05D,H01L,Y10S

Abstract:
1. A coating apparatus comprising: a rotatable tray having a recessed portion for accommodating a substrate and rotatable together with the substrate; a nozzle which supplies all of a coating liquid for coating the substrate; and an applicator for spreading the coating liquid, wherein the recessed portion has a depth which is substantially the same as a thickness of the substrate so that an upper surface of a substrate and an upper surface of the tray will be in the same plane when the substrate is accommodated into the recessed portion and the recessed portion has a similar shape to the substrate, the nozzle for supplying a coating liquid is a tubular member with a discharge opening at a lower end thereof and is positionable above a non-recessed portion of the tray such that the nozzle supplies a coating liquid only onto a non-recessed portion of the upper surface of the tray to form a coating liquid pool on the non-recessed portion of the tray, and the applicator is relatively movable in a horizontal direction in a state of maintaining a certain distance with respect to the upper surface of the substrate accommodated into the recessed portion and spreads the coating liquid of the coating liquid pool from the non-recessed portion of the upper surface of the tray over the entire upper surface of the substrate.