Patent ID: 6709523
Filing Date: 2004-03-23
Classification: G03F,H01L

Abstract:
An apparatus for performing a silylation treatment on a surface of a resist film disposed on a substrate, comprising:a process chamber, a hot plate disposed in the process chamber and configured to heat the substrate from a side reverse to a side on which the resist film is disposed; a supply system configured to supply a vapor containing a silylation reagent into the process chamber; an exhaust system configured to exhaust the process chamber; a substrate holder configured to move the substrate up and down relative to the hot plate in the process chamber; and a driving and controlling section configured to drive and control the substrate holder, and cause the substrate holder to keep the substrate at three or more height positions relative to the hot plate, the three or more height positions including at least an upper position where the substrate is loaded/unloaded to/from the substrate holder, a middle position where the substrate is maintained at rest to be pre-heated by heat from the hot plate at a first temperature below a temperature at which silylation of the surface of the resist film effectively occurs, and a lower position where the substrate is maintained at rest to be heated by heat from the hot plate at a second temperature higher than the first temperature, said second temperature being high enough to cause effective silylation of the surface of the resist film to proceed, wherein the supply system is configured to supply the vapor horizontally and comprises a supply ring disposed to surround the substrate, and supply holes for supplying the vapor are formed in an inner surface of the supply ring and the supply holes further comprise an upper hole and a lower hole arrayed in a vertical direction, and the upper hole has a diameter larger than that of the lower hole.