Patent ID: 9597822
Date: 2017-03-21
CPC Classifications: B29C,B29K,B29L,B81C,C09K,C23F,G03F,H01L,Y10T

Claim:
1. A method of manufacturing a mold, consisting essentially of: providing a resist layer containing a heat-reactive resist material for dry etching on a substrate to be an etching layer; exposing the resist layer, then developing, and forming a mask; performing dry etching via the mask; and removing the resist layer to manufacture a mold, wherein said heat-reactive resist material is used to form a fine concavo-convex structure product using an etching gas, said heat-reactive resist material having, as a principal constituent element, at least one species selected from the group consisting of Cr, Fe, Co, Al, Ga, In, Hf, Pb, oxides thereof and nitrides thereof, wherein the etching gas is fluorine-containing gas such that a ratio (F/C) of the number of fluorine atoms to the number of carbon atoms is 2.7 or less, wherein the fine concavo-convex structure product includes the etching layer and the resist layer, containing the heat-reactive resist material for dry etching, provided on the etching layer, wherein a concavo-convex structure associated with opening portions formed in the resist layer is formed in the etching layer, a pattern pitch P of a fine pattern of the concavo-convex structure ranges from 1 nm to 10 μm, a pattern depth H of the fine pattern ranges from 1 nm to 10 μm, and a pattern cross-sectional shape of the fine pattern is a trapezoid or triangle, and wherein the pattern cross-sectional shape meets Equation (1) or Equation (2): T T B wherein the heat-reactive material of the resist layer is in an amorphous state.