Patent ID: 7037852

Claim:
A composition for removing photoresist from an underlying layer, comprising: ethoxy N-hydroxyalkyl alkanamide represented by chemical formula CH 3 CH 2 —O—R 3 —CO—N—R 1 R 2 OH, alkanolamine and a polar material; wherein R 1 is at least one of an H atom, a hydrocarbonyl group including 1 to 5 carbons or an aromatic hydrocarbonyl group including 1 to 3 benzene rings, R 2 is a hydrocarbon including 1 to 5 carbons or an aromatic hydrocarbon including 1 to 3 benzene rings, and R 3 is a hydrocarbon including 1 to 5 carbons, the composition removing the photoresist without leaving any thread-shaped residues on the underlying layer.