Patent ID: 6296984
Filing Date: 2001-10-02
Classification: G03F,Y10S

Abstract:
A process for device fabrication comprising:forming a layer of an energy sensitive resist material on a substrate wherein the energy sensitive resist material comprises a polymer, a photoacid generator and a scavenger that reacts with aryl radicals wherein the photoacid generator has a general structure X-R wherein X is a chromophore selected from the group consisting of bis(substituted aryl)iodonium and tris(substituted aryl)sulfonium and R is a masked acidic moiety;exposing the layer of energy sensitive resist material to patterned radiation selected from the group consisting of ultraviolet radiation, x-ray radiation, ion beam radiation and electron beam radiation thereby introducing an image of the pattern into the resist material;developing the image into a pattern; andtransferring the pattern into the underlying substrate.