Patent ID: 8646403

Claim:
A treatment apparatus for treating a substrate, comprising: a substrate holding unit that holds the substrate, the substrate being a semiconductor which has a surface of which a treatment film has been formed and which has been subjected to exposure processing and developing treatment; a solvent gas supply source that generates solvent gas of the treatment film; a nozzle that supplies the solvent gas to the surface of the treatment film on the substrate; and a moving mechanism that moves said nozzle which is supplying the solvent gas, relative to the substrate, said nozzle has an elongated discharge portion at least longer than a diameter of the substrate and partition plates at a front and a rear in a moving direction of the nozzle, wherein said partition plates are separated by a predetermined distance and are provided extending downward and substantially parallel to each other from both ends of the elongated discharge portion without any gap between each of the partition plates and the elongated discharge portion, a discharge port of the nozzle is disposed between the partition plates with a gap between the discharge port and each of the partition plates, and the partition plates are longer in a vertical direction than the discharge port.