感光性樹脂組成物、並びに、感光性フィルム、レジストパターンの形成方法及びプリント配線板

摘要

PROBLEM TO BE SOLVED: To provide a resin composition which can secure a sufficient flame retardancy, can provide a sufficient resolution by an alklaline developer, can provide a cured material having a sufficient elongation, and sufficiently reduced in the bleed-out problem.SOLUTION: The resin composition contains 10 to 80 mass% of a phosphorus-containing compound having a repeating unit represented by formula (1), and a bismaleimide compound or a blocked isocyanate compound as a thermosetting agent.