| 摘要 |
PROBLEM TO BE SOLVED: To provide a material for forming a protective film in which no void is formed, even if the aspect ratio of a hole is increased and moreover no difference in the film thickness is produced between a Dense part and an Iso part, when the material for forming a protective film is provided thereon. SOLUTION: In a composition comprising a solid content containing a resin component and a crosslinking agent at a mass ratio of 2:8 to 4:6 and an organic solvent, mass average molecular weight of the solid component is adjusted to be in a range of 1,300-4,500.
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