Patent ID: 6225034
Filing Date: 2001-05-01
Classification: G03F

Abstract:
In a method of stripping photoresists comprising the following steps:(I) forming a photoresist layer on a substrate having metallic layer(s) thereon;(II) selectively exposing the applied photoresist layer to light through a mask pattern;(III) developing the light-exposed photoresist layer to provide a photoresist pattern;(IV) etching the substrate through the photoresist pattern as a mask pattern; and(V) stripping away the photoresist pattern from the substrate;the improvement wherein the photoresist pattern is stripped with a photoresist stripping liquid composition comprising (a) 2-30 wt. % of a hydroxylamine, (b) 2-35 wt. % of water, (c) 25-40 wt. % of at least one member selected from monoethanolamine and diethanolamine, (d) 20-32 wt. % of dimethyl sulfoxide and (e) 2-20 wt. % of an aromatic hydroxy compound, at a temperature of 75-85.degree. C.