| abstract |
(A) An epoxy group-containing polymer compound having a repeating unit represented by formula (1), (B) Photoacid generator: A photocurable resin composition containing a sulfonium salt having a specific structure. [Effect] On a flat substrate and an uneven substrate, the epoxy groups of the above-mentioned epoxy group-containing polymer compound are cross-linked with each other, and a fine pattern can be formed over a wide film thickness with light in a wide wavelength region. . [Selection figure] None |