The present invention provides a resin composition having a high sensitivity and serving to produce a cured film with a low water absorption rate. The resin composition includes: (a) an alkali-soluble resin and (b1) an amido-phenol compound containing a phenolic hydroxyl group in which a monovalent group as represented by the undermentioned general formula (1) is located at the ortho position and/or (b2) an aromatic amido acid compound containing a carboxy group in which a monovalent group as represented by the undermentioned general formula (2) is located at the ortho position:
wherein in general formula (1), X is a monovalent organic group having an alkyl group that contains 2 to 20 carbon atoms and bonds directly to the carbonyl carbon in general formula (1) or a monovalent organic group that has —(YO)n—; and in general formula (2), U is a monovalent organic group that has an alkyl group containing 2 to 20 carbon atoms and bonding directly to the amide nitrogen in general formula (2) or a monovalent organic group that has —(YO)n—; wherein Y is an alkylene group containing 1 to 10 carbon atoms and n is an integer of 1 to 20.
本发明提供了一种具有高灵敏度的
树脂组合物,可生成吸
水率低的固化膜。该
树脂组合物包括(a) 碱溶性
树脂和(b1) 含有
酚羟基的
氨基苯酚化合物,其中由上述通式(1)表示的一价基团位于正位,和/或(b2) 含有羧基的芳香族
氨基酸化合物,其中由上述通式(2)表示的一价基团位于正位:
其中,在通式(1)中,X 是含有 2 至 20 个碳原子的烷基并直接与通式(1)中的羰基碳键 合的一价有机基团,或具有-(YO)n-的一价有机基团;在通式(2)中,U 是具有含 2 至 20 个碳原子的烷基并直接与通式(2)中的酰胺氮键合的一价有机基团或具有-(YO)n-的一价有机基团;其中 Y 是含 1 至 10 个碳原子的亚烷基,n 是 1 至 20 的整数。