Patent ID: 6143478
Filing Date: 2000-11-07
Classification: G03F

Abstract:
A resist processing method comprising the steps of:(a) to a substrate having a circuit pattern with an uneven surface formed thereon, coating a photoresist solution to form a photoresist film;(b) chemically modifying a part of the photoresist film by heating the photoresist film from a reverse side of the substrate while cooling the photoresist film from a front side of the substrate, so that a modified resist layer of a substantially uniform thickness is formed from the uneven surface of the circuit pattern;(c) removing only a layer unmodified at the step (b) by bringing the photoresist film into contact with an organic solvent, thereby leaving the modified resist layer on the uneven surface;(d) patterning the modified resist layer by means of light exposure; and(e) post-exposure-baking the exposed modified resist layer.