Method for improving surface roughness of processed film of substrate and apparatus for processing substrate

摘要

A treatment apparatus for treating a substrate on a surface of which a treatment film has been formed and subjected to exposure processing and developing treatment. The treatment apparatus includes a nozzle for supplying a solvent gas of the treatment film to the surface of the treatment film on the substrate, and a moving mechanism for moving the nozzle which is supplying the solvent gas, relative to the substrate. The 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 the moving direction of the nozzle.