Patent ID: 8524111

Claim:
A CMP abrasive slurry for polishing insulation film, comprising cerium oxide particles, a dispersant, a water-soluble polymer having amino groups on the side chains, and water, wherein the water-soluble polymer having amino groups on the side chains is a polymer prepared by polymerization of polymerizable compounds consisting of at least one compound selected from the group consisting of polymerizable amino compounds represented by the following General Formula (I): (in Formula (I), R 1 represents a hydrogen atom, a lower alkyl group, a phenyl group, a benzyl group, a halogen-substituted lower alkyl group, or a cyano group; R 2 represents a C 1 -C 18 alkylene group; R 3 represents a hydrogen atom or a C 1 -C 18 alkyl group; and R 4 represents a C 1 -C 18 alkyl group), and polymerizable amino compounds represented by the following General Formula (II): (in Formula (II), R 5 represents a hydrogen atom, a lower alkyl group, a phenyl group, a benzyl group, a halogen-substituted lower alkyl group, or a cyano group; R 6 represents a hydrogen atom or a C 1 -C 18 alkyl group; R 7 represents a C 1 -C 18 alkylene group; R 8 represents a hydrogen atom or a C 1 -C 18 alkyl group; and R 9 represents a C 1 -C 18 alkyl group).