Patent ID: 6097469
Filing Date: 2000-08-01
Classification: G03F,H01L,Y10S

Abstract:
A resist processing apparatus having a processing region and a non-processing region which are air-conditioned, said resist processing apparatus comprising:a resist coating portion for coating the resist with a substrate;a heating portion for heating the substrate subjected to an exposing process;a cooling portion for cooling the substrate;a developing portion for developing the substrate;an interface portion for transferring/receiving the substrate which has been subjected to the exposing process;means for transferring the substrate between said interface portion and each of said resist coating portion, said heating portion, said cooling portion and said developing portion;means for supplying downflow air to said processing region;filter means disposed in a predetermined position with respect to said processing region and arranged to remove an alkaline component contained in downflow air to be introduced into said processing region, said filter means having an element containing an acid component for reacting with the alkaline component to capture the alkaline component;concentration detection mean for detecting the concentration of an alkaline component existing in at least one atmosphere in said resist coating portion, said developing portion, said heating portion, said cooling portion and said interface portion;means for setting a threshold value of the concentration of the alkaline component in the processing atmosphere which causes defective resolution of the resist; anddisplay means for displaying a value detected by said concentration detection means.