| abstract |
Provided is a positive colored radiation-sensitive resin composition having high resolution in a colored cured resin pattern. In a positive colored radiation-sensitive resin composition containing a curable alkali-soluble resin (A), a quinonediazide compound (B), and a colorant (C), the curable alkali-soluble resin (A). Is a copolymer containing a structural unit (a1) derived from an unsaturated carboxylic acid and a structural unit (a2) derived from an unsaturated compound having an oxetanyl group [provided that The unsaturated compound having an oxetanyl group leading to the unit (a2) is not an unsaturated carboxylic acid]. [Selection figure] None |