Patent ID: 6416583
Filing Date: 2002-07-09
Classification: B05C,G03F,H01L

Abstract:
A film forming apparatus comprising:a substrate holding section configured to hold a substrate to be processed, with that surface of the substrate on which a film is to be formed, turned upwards; a nozzle unit arranged and opposing the substrate holding section, having a discharge hole for continuously applying film forming solution, in the form of a slender stream, to a surface of the substrate held by the substrate holding section; a drive mechanism configured to drive the substrate and the nozzle unit relative to each other, thereby to coat the surface of the substrate with the solution, while the nozzle unit is applying the solution, in the form of a slender stream, to the surface of the substrate; and an atmosphere control mechanism configured to maintain a solvent atmosphere of a predetermined concentration in a space into which the nozzle unit applies the solution, wherein the atmosphere control mechanism has a main body configured to accommodate the substrate to be processed, a solvent channel provided in the main body configured to store solvent controlled in temperature and surface level, and a top plate member provided above the main body and partitioning the space into which the nozzle unit applies the solution, the top plate member has an insertion section in which the nozzle unit is inserted, and the top plate member has a heater configured to heat the nozzle unit and the space into which the nozzle unit applies the solution.