Slurry composition, method of polishing an object layer and method of manufacturing a non-volatile memory device using the slurry composition
    2.
    发明申请
    Slurry composition, method of polishing an object layer and method of manufacturing a non-volatile memory device using the slurry composition 审中-公开
    浆料组合物,抛光物体层的方法和使用该浆料组合物制造非易失性存储器件的方法

    公开(公告)号:US20070281486A1

    公开(公告)日:2007-12-06

    申请号:US11809672

    申请日:2007-06-01

    Abstract: Methods of polishing an object layer and for manufacturing a non-volatile memory device that incorporates such a polished object layer using a specially formulated slurry composition are disclosed. The slurry compositions include a ceria abrasive, a nonionic surfactant having a hydrophilic-lipophilic balance (HLB) value in a range of about 12 to about 17, and water. The nonionic surfactant is selected such that it may be adsorbed onto a hydrophobic layer to protect the hydrophobic layer from the ceria abrasive during a polishing operation. The slurry compositions may have a relatively high polishing rate for a hydrophilic layer and at the same time a relatively low polishing rate for a hydrophobic layer. Thus, the slurry compositions may be applied during a process for polishing the hydrophilic layer using the hydrophobic layer as a polishing stop layer.

    Abstract translation: 公开了抛光目标层和用于制造使用特别配制的浆料组合物并入这种抛光对象层的非易失性存储器件的方法。 浆料组合物包括二氧化铈磨料,亲水 - 亲油平衡(HLB)值在约12至约17的范围内的非离子表面活性剂和水。 选择非离子表面活性剂,使得其可以在抛光操作期间吸附到疏水层上以保护疏水层免受二氧化铈磨料的侵蚀。 该浆料组合物可以具有相对较高的抛光速率,对于亲水层,同时对疏水层具有较低的抛光速率。 因此,可以在使用疏水层作为抛光停止层的亲水层的抛光工艺期间施加浆料组合物。

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