Patent ID: 8592317
Filing Date: 2013-11-26
Classification: C09G,C09K,H01L

Abstract:
1. A polishing solution for CMP comprising abrasive grains, a first additive a second additive and water, wherein the first additive is at least 1,2-benzoisothiazole-3(2H)-one or 2-aminothiazole; and the second additive satisfying the following conditions i) to v): i) having in a molecule at least cyclic structure including at least one carbon-carbon double bond, the “carbon-carbon double bond” optionally including carbon-carbon bonds forming a resonance structure; ii) having at least one and not more than four —OH structures in a molecule, the —OH structures optionally including —OH structures in —COOH groups; iii) having not more than one —COOH group in a molecule; iv) having either or both the following first structure and/or second structure in a molecule; first structure: a structure comprising a carbon atom C second structure: a structure comprising a carbon atom C v) either or both the carbon atom C wherein the first structure according to condition iv) is selected from among structures represented by the following formulas a), b), d)-l): in the formulas a), b), d)-l), the bond represented by a pair of solid line and dotted line indicates a bond forming a resonance structure, bonding forms and bonding atoms of remaining unshown bonds of the carbon atoms C