Patent ID: 6383712
Filing Date: 2002-05-07
Classification: G03F,Y10S

Abstract:
A composition suitable for use in a photoresist formulation, said composition comprising:a monomeric sensitizer selected from the group consisting of chrysenes, pyrenes, fluoranthenes, anthrones, benzophenones, thioxanthones, and anthracenes; and a base-soluble long chain polymer having a molecular weight within the range of 1000 to 250,000, wherein the monomeric sensitizer is bound to the base-soluble long chain polymer and wherein the base-soluble long chain polymer is selected from the group consisting of p-hydroxystyrene-maleic anhydride copolymers, polyhydroxystyrene-p-tertiarybutyl-carbanatostyrene copolymers, poly-4-hydroxystyrene, poly-3-hydroxystyrene polymers, poly-3-methyl-4-hydroxy styrene, poly-2-hydroxystyrene copolymers, phenol-formaldehyde resins, polymethyl methacrylate-tertiary butyl methacrylate-polymethacrylic acid terpolymers, and poly-4-hydroxystyrene-tertiary butyl methacrylate copolymers.