Patent ID: 7722736

Claim:
A substrate processing apparatus for performing predetermined processing by supplying a processing liquid to a substrate while rotating the substrate, the apparatus comprising: a substrate-supporting unit which holds the substrate; a rotary driving unit which rotates the substrate held by the substrate-supporting unit; a nozzle which supplies the processing liquid to a top rim portion of the rotating substrate; a blocking member which is disposed opposing a top surface of the substrate and includes a through hole which vertically penetrates a rim portion of the blocking member and which includes a shape allowing the nozzle to be inserted into the through hole, the rim portion being positioned inwardly from a surface of an edge of the blocking member; a nozzle move mechanism which moves the nozzle between an opposing position and a retract position, the opposing position being a position at which the nozzle opposes the top rim portion of the substrate by being inserted into the through hole, the retract position being a position which is distanced from the blocking member; a gas ejection unit which ejects gas from the through hole when the nozzle is positioned to the retract position; and a controller which is configured to cause the nozzle to supply the processing liquid to the top rim portion of the substrate when the nozzle is positioned to the opposing position.