Patent ID: 7638268

Claim:
A rework process for a photoresist film over a substrate having at least a first antireflection silicone resin film and the photoresist film over the first silicone resin film comprising: at least removing the photoresist film with at least one solvent selected from the group consisting of cyclopentanone, 5-methyl-2-hexanone ethyl-2-n-amyl ketone, 3-methoxy butanol, 3-ethyl-3-methoxy butanol, 1-methoxy-2-propanol, 1-ethoxy-2-propanol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol diethyl ether, propylene glycol monoethyl ether acetate, ethyl lactate, ethyl pyruvate, ethyl 3-methoxy propionate, ethyl 3-ethoxy propionate, tert-butyl acetate, tert-butyl propionate, propylene glycol mono tert-butyl-ether acetate, and γ-butyrolactone, while leaving the first silicone resin film unremoved; forming a second antireflection silicone resin film over the first silicone resin film; and forming a photoresist film again over the second silicone resin film.