Patent ID: 7820368

Claim:
A method for forming a wire structure, the method comprising: depositing a copper-containing conductive layer on a lower structure; forming a photoresist pattern defining a wire structure on the conductive layer; etching the conductive layer using the photoresist pattern as an etching mask; and stripping the photoresist pattern using a photoresist stripper composition, comprising: butyl diglycol in a concentration of between about 50 WT % to about 70 WT %; an alkylpyrrolidone in a concentration of between about 20 WT % to about 40 WT %; an organic amine compound in a concentration of between about 1 WT % to about WT %; aminopropylmorpholine in a concentration of between about 1 WT % to about 5 WT %; and a mercapto compound in a concentration of between about 0.01 WT % to about 0.5 WT %.