Patent ID: 6703190
Filing Date: 2004-03-09
Classification: G03F,Y10S

Abstract:
A process for producing negative resist structures, which comprises the steps of:providing a substrate; applying a chemical amplification resist to the substrate, the chemical amplification resist containing: a polymer which changes polarity when exposed to an acid, and the polymer including carboxylic anhydride groups; a compound functioning as a thermoacid generator from which an acid is released when exposed to a thermal treatment; a photoreactive compound functioning as a photobase generator from which a base is formed upon exposure to one of light, X-rays, electron beams and ion beams; and a solvent; drying the chemical amplification resist; exposing the chemical amplification resist to one of light, X-rays, electron beams and ion beams; heating the chemical amplification resist; developing the chemical amplification resist with an aqueous-alkaline developer solution; and siliconizing the chemical amplification resist from a liquid phase.