Patent ID: 7906038
Filing Date: 2011-03-15
Classification: C09G,C09K,H01L

Abstract:
1. An aqueous polishing liquid comprising: an oxidizing agent, a five-membered monocyclic compound having at least three nitrogen atoms or a compound in which a hetero ring is fused to said compound; and a compound having an imidazole skeleton or an isothiazolin-3-one skeleton, the five-membered monocyclic compound having at least three nitrogen atoms and/or the compound in which a hetero ring is fused to said compound being used at a total concentration of less than 300 mg/L, and the compound having an imidazole skeleton or an isothiazolin-3-one skeleton being used at a concentration of at least 10 mg/L but no greater than 500 mg/L, wherein the compound having an imidazole skeleton or an isothiazolin-3-one skeleton is a compound having an isothiazolin-3-one skeleton represented by Formula (VI) or Formula (VII), wherein X