Patent ID: 6413317
Filing Date: 2002-07-02
Classification: H01L

Abstract:
A substrate processing apparatus, comprising:a holding plate for holding a substrate; an ultraviolet-ray irradiation lamp disposed above the holding plate for applying ultraviolet rays to a front face of the substrate; a vertically driving mechanism for vertically driving the ultraviolet-ray irradiation lamp; an illuminance monitor for monitoring illuminance of the ultraviolet-ray irradiation lamp; a controller for controlling the vertically driving mechanism to vertically drive the ultraviolet-ray irradiation lamp with respect to the substrate to keep the monitored illuminance constant; means for bringing a portion between the substrate held on the holding plate and ultraviolet-ray irradiation lamp to an inert gas atmosphere; and means for switching at least the inert gas atmosphere over the front face of the substrate held on the holding plate to an oxygen atmosphere.