Patent ID: 6127097
Filing Date: 2000-10-03
Classification: G03F

Abstract:
A method of stripping free radical, addition polymerizable photoresist, comprising:providing a film of the photoresist on a substrate;selectively exposing at least one predetermined area of the photoresist film to radiation to which it is sensitive for a time sufficient to effect a contrast in the extent of crosslinking in exposed and unexposed regions;developing the photoresist film in a developer containing benzyl alcohol;forming a desired circuit pattern on the substrate by plating copper thereon; andstripping the at least one predetermined area of photoresist exposed to radiation in a solution consisting of benzyl alcohol and about 0.1% up to about 10% by weight of an additive selected from the group consisting of methanol, ethanol, isopropyl alcohol, propylene glycol monomethyl acetate, ethylene glycol monomethyl ether, formamide, nitromethane, propylene oxide, methyl ethyl ketone, acetone and water at a temperature of about 50 to about 100 degrees C.