Patent ID: 6589339
Filing Date: 2003-07-08
Classification: B05D,H01L,Y10S

Abstract:
An aging unit, comprising:a treatment chamber having a sealing mechanism, for accommodating a substrate having formed thereon a film containing a solvent and particles or colloids of a starting substance of a film component; a heater for heating the substrate; a carrier gas feeding system for feeding the carrier gas toward the treatment chamber; a solvent dispensing system for dispensing the solvent toward the treatment chamber; a mixing system for forming a mixed gas containing a solvent vapor from the carrier gas feeding system and the solvent dispensing system; and a control mechanism for controlling a solvent concentration of the mixed gas, wherein the control mechanism controls the solvent concentration to a first average concentration during a predetermined time after the substrate is carried into the treatment chamber, and the control mechanism controls the solvent concentration to a second average concentration higher than the first average concentration after the predetermined time has passed.