Patent ID: 8715905
Filing Date: 2014-05-06
Classification: C08G,C08L,G03F,Y10T

Abstract:
1. A pattern formation method, comprising: (i) forming a film of a photocurable composition, comprising: (A) a silphenylene having both terminals modified with alicyclic epoxy groups, represented by formula (1) shown below:  and (C) a photoacid generator that generates acid upon irradiation with light having a wavelength of 240 to 500 nm, on a substrate, (ii) exposing the film through a photomask with light having a wavelength of 240 to 500 nm, or exposing the film through a photomask with light having a wavelength of 240 to 500 nm and then performing heating following the exposure, and (iii) developing the film in a developing liquid, or developing the film in a developing liquid and subsequently performing post-curing at a temperature within a range from 120 to 300° C.