| 摘要 |
The invention provides a polishing composition comprising fumed alumina, alpha alumina, silica, a nonionic surfactant, a metal chelating organic acid, and a liquid carrier. The invention further provides a method of chemically-mechanically polishing a substrate comprising contacting a substrate with a polishing pad and the chemical-mechanical polishing composition, and abrading at least a portion of the substrate to polish the substrate.
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