CMP COMPOSITIONS SELECTIVE FOR OXIDE OVER POLYSILICON AND NITRIDE WITH HIGH REMOVAL RATE AND LOW DEFECTIVITY
    2.
    发明申请
    CMP COMPOSITIONS SELECTIVE FOR OXIDE OVER POLYSILICON AND NITRIDE WITH HIGH REMOVAL RATE AND LOW DEFECTIVITY 有权
    选择用于具有高除去速率和低缺陷度的多晶硅和氮化物的氧化物的CMP组合物

    公开(公告)号:US20140349483A1

    公开(公告)日:2014-11-27

    申请号:US14289728

    申请日:2014-05-29

    CPC classification number: G09G1/02 C09G1/02 C09K3/1463 H01L21/31053

    Abstract: The invention provides a chemical-mechanical polishing composition containing a ceria abrasive and a polymer of formula I: wherein X1 and X2, Y1 and Y2, Z1 and Z2, R1, R2, R3, and R4, and m are as defined herein, and water, wherein the polishing composition has a pH of about 1 to about 4.5. The invention further provides a method of chemically-mechanically polishing a substrate with the inventive chemical-mechanical polishing composition. Typically, the substrate contains silicon oxide, silicon nitride, and/or polysilicon.

    Abstract translation: 本发明提供一种含有二氧化铈研磨剂和式I的聚合物的化学机械抛光组合物:其中X1和X2,Y1和Y2,Z1和Z2,R1,R2,R3和R4以及m如本文所定义, 水,其中所述抛光组合物具有约1至约4.5的pH。 本发明还提供了利用本发明的化学 - 机械抛光组合物对衬底进行化学机械抛光的方法。 通常,衬底含有氧化硅,氮化硅和/或多晶硅。

    POLISHING COMPOSITION COMPRISING AN AMINE-CONTAINING SURFACTANT

    公开(公告)号:US20170369742A1

    公开(公告)日:2017-12-28

    申请号:US15629487

    申请日:2017-06-21

    CPC classification number: C09G1/02 B24B37/044 C09K3/1409 C09K3/1463

    Abstract: The invention provides a chemical-mechanical polishing composition comprising (a) wet-process ceria abrasive, (b) a surfactant comprising an amine-containing anchor group and ethylene oxide-propylene oxide stabilizing group, wherein the surfactant has a molecular weight of from about 1000 Daltons to about 5000 Daltons, (c) an aromatic carboxylic acid or heteroaromatic carboxylic acid, and (d) water, wherein the polishing composition has a pH of about 3 to about 6. The invention further provides a method of chemically mechanically polishing a substrate with the inventive chemical-mechanical polishing composition. Typically, the substrates contain silicon oxide.

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