Compositions and methods for polishing silicon nitride materials
    6.
    发明申请
    Compositions and methods for polishing silicon nitride materials 有权
    用于研磨氮化硅材料的组合物和方法

    公开(公告)号:US20070298612A1

    公开(公告)日:2007-12-27

    申请号:US11448205

    申请日:2006-06-07

    IPC分类号: C03C15/00 H01L21/302

    摘要: The present invention provides a method for polishing silicon nitride-containing substrates. The method comprises abrading a surface of a silicon nitride substrate with a polishing composition, which comprises colloidal silica, at least one acidic component, and an aqueous carrier. The at least one acidic component has a pKa in the range of about 1 to 4.5. The composition has a pH in the range of about 0.5 pH units less than the pKa of the at least one acidic component to about 1.5 pH units greater than the pKa.

    摘要翻译: 本发明提供一种研磨含氮化硅的基板的方法。 该方法包括用抛光组合物研磨氮化硅衬底的表面,抛光组合物包括胶体二氧化硅,至少一种酸性组分和水性载体。 所述至少一种酸性组分的pKa在约1至4.5的范围内。 所述组合物的pH值比所述至少一种酸性组分的pKa小约0.5pH单位至大于pKa约1.5pH单位。

    Polishing composition and method for high silicon nitride to silicon oxide removal rate ratios
    8.
    发明授权
    Polishing composition and method for high silicon nitride to silicon oxide removal rate ratios 有权
    高氮化硅到氧化硅去除速率比的抛光组合物和方法

    公开(公告)号:US07846842B2

    公开(公告)日:2010-12-07

    申请号:US12364253

    申请日:2009-02-02

    IPC分类号: H01L21/304 B44C1/22

    CPC分类号: H01L21/31053 C09G1/02

    摘要: The invention provides a chemical-mechanical polishing composition comprising a cationic abrasive, a cationic polymer, a carboxylic acid, and water. The invention further provides a method of chemically-mechanically polishing a substrate with the aforementioned polishing composition. The polishing composition exhibits selectivity for removal of silicon nitride over removal of silicon oxide.

    摘要翻译: 本发明提供了包含阳离子磨料,阳离子聚合物,羧酸和水的化学机械抛光组合物。 本发明还提供了用上述抛光组合物对衬底进行化学机械抛光的方法。 抛光组合物在除去氧化硅后显示出去除氮化硅的选择性。

    Method for controlling polysilicon removal
    9.
    发明申请
    Method for controlling polysilicon removal 审中-公开
    控制多晶硅去除的方法

    公开(公告)号:US20070077865A1

    公开(公告)日:2007-04-05

    申请号:US11243140

    申请日:2005-10-04

    IPC分类号: B24B7/30 B24B1/00

    CPC分类号: H01L21/3212 C09G1/02

    摘要: The invention is directed to a method of chemically-mechanically polishing a substrate comprising polysilicon and a material selected from silicon oxide and silicon nitride with a chemical-mechanical polishing system comprising an abrasive, a polyethylene oxide/polypropylene oxide copolymer, water, and a polishing pad.

    摘要翻译: 本发明涉及一种化学机械抛光包括多晶硅和选自氧化硅和氮化硅的材料的衬底的方法,该化学机械抛光系统包括研磨剂,聚环氧乙烷/聚丙烯氧化物共聚物,水和抛光 垫。

    Readily deinkable toners
    10.
    发明申请
    Readily deinkable toners 有权
    容易脱墨的调色剂

    公开(公告)号:US20060196848A1

    公开(公告)日:2006-09-07

    申请号:US10543848

    申请日:2004-02-02

    摘要: The invention is directed to a method of polishing a silicon-containing dielectric layer involving the use of a chemical-mechanical polishing system comprising (a) an inorganic abrasive, (b) a polishing additive, and (c) a liquid carrier, wherein the polishing composition has a pH of about 4 to about 6. The polishing additive comprises a functional group having a pKa of about 3 to about 9 and is selected from the group consisting of arylamines, aminoalcohols, aliphatic amines, heterocyclic amines, hydroxamic acids, aminocarboxylic acids, cyclic monocarboxylic acids, unsaturated monocarboxylic acids, substituted phenols, sulfonamides, thiols, salts thereof, and combinations thereof. The invention is further directed to the chemical-mechanical polishing system, wherein the inorganic abrasive is ceria.

    摘要翻译: 本发明涉及一种抛光含硅介电层的方法,涉及使用化学机械抛光系统,该系统包括(a)无机磨料,(b)抛光添加剂和(c)液体载体,其中 抛光组合物的pH为约4至约6.抛光添加剂包含具有约3至约9的pK a a的官能团,并且选自芳基胺,氨基醇,脂族胺 杂环胺,异羟肟酸,氨基羧酸,环状单羧酸,不饱和一元羧酸,取代苯酚,磺酰胺,硫醇,其盐及其组合。 本发明进一步涉及化学机械抛光系统,其中无机磨料是二氧化铈。