Stepped substrate coating composition containing a compound having a photocrosslinking group due to an unsaturated bond between carbon atoms

摘要

PROBLEM TO BE SOLVED: To provide a stepped substrate coating composition for forming a film having a filling property and flatness in a pattern. A hydroxy compound comprising a compound (E) containing a partial structure (I) and a partial structure (II) and a solvent (F), wherein the partial structure (II) is produced by a reaction between an epoxy group and a proton generating compound. A photocurable stepped substrate coating composition containing a group, wherein the partial structure (I) is at least one partial structure selected from the group consisting of the following formulas (1-1) to (1-5), or a formula: (1-6) is a partial structure composed of a combination of formula (1-7) or formula (1-8), and partial structure (II) is represented by the following formula (2-1) or formula (2-2): The above composition which is a partial structure. Further, in the compound (E), the epoxy group and the hydroxy group are included at a molar ratio of 0 ≦ (epoxy group) / (hydroxy group) ≦ 0.5, and the partial structure (II) is 0.01 ≦ (partial structure). (II)) The above composition comprising a molar ratio of (partial structure (I) + partial structure (II)) ≦ 0.8. [Chemical 1] [Selected figure] None