Patent ID: 7922960
Filing Date: 2011-04-12
Classification: B82Y,G03F,Y10S

Abstract:
1. A fine resist pattern forming method by transferring an ultrafine pattern having a line width of 10 nm or less with nonadiabatic near-field light exposure and other sized pattern with nanoimprint to a photoresist formed on a surface of a workpiece substrate, said method comprising: providing a light-transmitting mold structure having a mold pattern corresponding to a portion to form a pattern by nanoimprint and a conductive film pattern corresponding to a portion to form a pattern by nonadiabatic near-field exposure, the mold pattern including convex patterns having a height which is equal to the sum of a thickness of the photoresist and a thickness of the conductive film pattern; imprinting the mold pattern to the photoresist such that the mold pattern contacts the surface of the workpiece substrate, and simultaneously irradiating nonresonant light of a wavelength band other than the photosensitive band of said photoresist from a back surface of the light-transmitting mold structure; and performing exposure by nonadiabatic near-field light generated at each edge portion of said conductive film pattern.