Patent ID: 6136498
Filing Date: 2000-10-24
Classification: G03F,Y10S

Abstract:
The composition suitable for use as a negative photoresist material comprising:a polymer-bound sensitizer including:between 1 and 25 mole percent of a monomeric sensitizer selected from the group consisting of chrysenes; pyrenes; fluoranthenes; anthrones; benzophenones; thioxanthones; and anthracenes; anda base-soluble long chain polymer having a molecular weight within the range of 1000 to 250,000 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;a polymer resin;a photoacid generator; anda cross-linker wherein the composition is dissolved in a photoresist casting solvent.