Patent ID: 6695922
Filing Date: 2004-02-24
Classification: B05C,G03F,H01L

Abstract:
A film forming unit for applying a coating solution to a substrate and forming a coating film on the substrate, comprising:a heating and/or cooling member brought into direct or indirect contact with said substrate for changing temperature of at least a peripheral portion of said substrate, and a coating solution discharge portion moving relatively to said substrate and discharging the coating solution to said substrate, wherein said coating solution discharge portion is movable back and forth in a direction relatively to said substrate while discharging the coating solution to a top surface of said substrate, and said substrate is movable in another direction orthogonal to said direction relatively to said coating solution discharge portion wherein said coating solution discharge portion is stopped temporarily at an end for turn, and the coating solution discharge portion is continuously discharging the coating solution to the substrate while the coating solution discharge portion is moving and is stopped temporarily at the end to turn, said heating and/or cooling member is formed into a ring shape corresponding to a shape of a perimeter portion of said substrate, said ring shape is divided into a plurality of divided regions, and said heating and/or cooling member is structured so that a temperature for each said divided region is controllable.