Patent ID: 6303260
Filing Date: 2001-10-16
Classification: G03F

Abstract:
The present invention is directed to compositions useful for a lift-off resist in a bilayer metal lift-off process, which comprise a mixture of at least one solvent, at least one polyglutarimide resin and an effective amount of at least one actinic-absorbing dissolution rate modifier of the formula (IA or (IB): ##STR12##in which each R.sub.1 and R.sub.2 is selected from the group consisting of hydrogen, unsubstituted or substituted alkyl, alkoxy, nitro, halo, amide or hydroxy or a combination thereof, X is an aromatic group and each R.sub.3 and R.sub.4 are individually selected from the group consisting of hydrogen, an unsubstituted or substituted alkyl or arylsulfonyl; each m is an integer from 1 to 5 and each n is an integer from 1 to 4.