COMPOSITION FOR POLISHING, POLISHING METHOD, AND MANUFACTURING METHOD OF SEMICONDUCTOR SUBSTRATE
To provide means enabling residue on the surface of a polishing-target to be sufficiently removed while polishing the surface of the polishing-target at slow speed.SOLUTION: A composition for polishing is provided, including: an anionic water-soluble polymer that is a copolymer including anion-modif...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide means enabling residue on the surface of a polishing-target to be sufficiently removed while polishing the surface of the polishing-target at slow speed.SOLUTION: A composition for polishing is provided, including: an anionic water-soluble polymer that is a copolymer including anion-modified colloidal silica, a dispersion medium, a constitutional unit having a sulfonic acid group or a salt thereof, and a constitutional unit having a carboxy group or a salt thereof; polypropylene glycol having a weight average molecular weight of 200 to 700; a nitrogen-free nonionic polymer other than the polypropylene glycol having a weight average molecular weight of 200 to 700; and a nitrogen-containing nonionic polymer.SELECTED DRAWING: None
【課題】研磨対象物を緩やかな速度で研磨しつつも、研磨対象物表面の残渣を十分に除去しうる手段を提供する。【解決手段】アニオン変性コロイダルシリカと、分散媒と、スルホン酸基若しくはその塩の基を有する構成単位と、カルボキシ基若しくはその塩の基を有する構成単位と、を含む共重合体である、アニオン性水溶性高分子と、重量平均分子量が200以上700以下であるポリプロピレングリコールと、前記重量平均分子量が200以上700以下であるポリプロピレングリコール以外の窒素非含有ノニオン性高分子と、窒素含有ノニオン性高分子と、を含む研磨用組成物を提供する。【選択図】なし |
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