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CMP POLISHING LIQUID, CMP POLISHING LIQUID SET, AND POLISHING METHOD

发明专利审中
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21权利要求 · 2 独立
§ Ⅰ

卷宗概要

发明人

Yasushi KURATA; Masahiro KANNO; Tomohiro IWANO; Noriaki MURAKAMI; Makoto MIZUTANI; Shigeki KUBOTA; Taira ONUMA

IPC 分类

C9K 3/14B24B 37/4C9K 13/

CPC 分类

C9K3/1463B24B37/44C9K13/

A polishing liquid for CMP, containing: abrasive grains; an additive; and water, in which the abrasive grains include cerium-based particles, a zeta potential of the abrasive grains is negative, the additive includes (A1) a 4-pyrone-based compound represented by General Formula (1) below, and a pH is 5.0 or more. A polishing liquid for CMP, containing: abrasive grains; an additive; and water, in which the abrasive grains include cerium-based particles, a zeta potential of the abrasive grains is negative, the additive includes (A2) a picolinic acid compound, and a pH is 5.0 or more. [In the formula, X, X, and Xare each independently a hydrogen atom or a monovalent substituent.]

原文(中文)

A polishing liquid for CMP, containing: abrasive grains; an additive; and water, in which the abrasive grains include cerium-based particles, a zeta potential of the abrasive grains is negative, the additive includes (A1) a 4-pyrone-based compound represented by General Formula (1) below, and a pH is 5.0 or more. A polishing liquid for CMP, containing: abrasive grains; an additive; and water, in which the abrasive grains include cerium-based particles, a zeta potential of the abrasive grains is negative, the additive includes (A2) a picolinic acid compound, and a pH is 5.0 or more. [In the formula, X, X, and Xare each independently a hydrogen atom or a monovalent substituent.]