COMPOSITIONS AND METHODS FOR CMP OF LOW-K DIELECTRIC MATERIALS

The present invention provides a chemical-mechanical polishing (CMP) composition suitable for polishing low-k dielectric materials. The composition comprises a particulate abrasive material, at least one silicone-free nonionic surfactant comprising a hydrophilic portion and a lipophilic portion, at...

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Hauptverfasser: AGGIO, Jason, KELEHER, Jason, DE REGE THESAURO, Francis, MEDSKER, Robert, WOODLAND, Daniel
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention provides a chemical-mechanical polishing (CMP) composition suitable for polishing low-k dielectric materials. The composition comprises a particulate abrasive material, at least one silicone-free nonionic surfactant comprising a hydrophilic portion and a lipophilic portion, at least one silicone-containing nonionic surfactant comprising a hydrophilic portion and a lipophilic portion, and an aqueous carrier therefor. A CMP method for polishing a low-k dielectric surface utilizing the composition is also disclosed.