Patent ID: 6280911
Filing Date: 2001-08-28
Classification: G03F,Y10S

Abstract:
A method for forming a photoresist relief image on a microelectronic wafer substrate or a flat panel display substrate comprising:(a) applying a coating layer of a photoresist composition on a microelectronic wafer substrate or a flat panel display substrate, the photoresist composition comprising i) a resin binder that comprises an alkyl acrylate-phenol polymer and ii) a mixture of photoacid generator compounds in an amount sufficient to permit development of an exposed coating layer of the composition, the photoacid generator compound mixture comprising at least one photoacid generator that is an ionic compound and at least one photoacid generator that is a non-ionic compound that is selected from the group of a sulfonate ester compound, disulfone compound, or nitrobenzyl compound; and(b) exposing the photoresist coating layer to patterned activating radiation having a wavelength of less than about 250 nm and developing the exposed photoresist layer to provide a relief image.