Patent ID: 8651121
Filing Date: 2014-02-18
Classification: H01L

Abstract:
1. A substrate processing apparatus, comprising: a chamber to receive a substrate; a substrate holding part to horizontally hold the substrate within the chamber; a rotating device to rotate the substrate holding part; a gas discharging head provided on an upper side of the substrate holding part within the chamber and configured to selectively move up and down between a retreat position at an upper part of the chamber and an approach position near the substrate held by the substrate holding part according to a current process, the gas discharging head selectively discharging either a dehumidified gas or a clean air into a lower side in the chamber; a gas supplying device to supply either the dehumidified gas or the clean air to the gas discharging head; a driving device to move the gas discharging head between the retreat position and the approach position; a processing liquid supply nozzle to supply a processing liquid to the substrate; a dry organic solvent supply nozzle formed separately from the processing liquid nozzle to supply a dry organic solvent to the substrate; and a control part configured to control the gas discharging head, the gas supplying device, the driving device, the processing liquid supply nozzle and the dry organic solvent supply nozzle, wherein the control part controls the gas discharging head, the gas supplying device, the driving device, the processing liquid supply nozzle and the dry organic solvent supply nozzle such that the processing liquid is supplied from the processing liquid supply nozzle to the substrate to perform liquid processing of the substrate, and a series of processes is performed to dry the substrate by supplying the dry organic solvent from the dry organic solvent supply nozzle to the substrate, the gas discharging head moves from the retreat position to the approach position while the processing liquid supply nozzle supplies the processing liquid to the substrate and starts to supply the dehumidified gas to the substrate before the dry organic solvent is supplied to the substrate, and the gas discharging head is positioned at the retreat position to supply the clean air from the gas discharging head to the substrate when the dehumidified gas is not supplied to the substrate.