ADDITIVES TO IMPROVE PARTICLE DISPERSION FOR CMP SLURRY

The invention provides a chemical-mechanical polishing composition comprising (a) about 0.05 wt. % to about 10 wt. % of an abrasive; (b) a dispersant, wherein the dispersant is a linear or branched C2-C10 alkylenediol; and (c) water, wherein the chemical-mechanical polishing composition has a pH of...

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Bibliographische Detailangaben
Hauptverfasser: KO, Cheng-Yuan, HUANG, Hung-Tsung, LEE, Yang-Yao, LU, Lung-Tai, WU, Hsin-Yen
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The invention provides a chemical-mechanical polishing composition comprising (a) about 0.05 wt. % to about 10 wt. % of an abrasive; (b) a dispersant, wherein the dispersant is a linear or branched C2-C10 alkylenediol; and (c) water, wherein the chemical-mechanical polishing composition has a pH of about 2 to about 6. The invention also provides a method of chemically-mechanically polishing a substrate by contacting the substrate with the inventive chemical-mechanical polishing composition.