Patent ID: 8778092

Claim:
A substrate processing method comprising: cleaning a target substrate by immersing the target substrate in a cleaning solution in a longitudinal direction while the cleaning solution is supplied to a cleaning tank; transferring the target substrate picked up from the cleaning tank to a drying chamber while holding the target substrate in a longitudinal direction; during the step of transferring, alternately supplying a first drying gas containing vapor of a solvent for removing a liquid and a second drying gas not containing the vapor of the solvent for removing the liquid to an area where the target substrate is exposed between an upper area of the cleaning tank and the drying chamber after an upper end of the cleaned target substrate is picked up from a liquid surface of the cleaning solution; and drying the target substrate in the drying chamber communicating with the upper area of the cleaning tank, wherein, when a cycle is defined as a period of time required to respectively supply the first drying gas and the second drying gas one time, at least one cycle is repeated between a time when the upper end of the target substrate is picked up from the cleaning solution and a time when the whole target substrate is picked up from the cleaning solution.