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    Feedback Control Using Detection Of Clearance And Adjustment For Uniform Topography
    2.
    发明申请
    Feedback Control Using Detection Of Clearance And Adjustment For Uniform Topography 有权
    反馈控制使用检测的均匀地形的清除和调整

    公开(公告)号：US20130224890A1

    公开(公告)日：2013-08-29

    申请号：US13774843

    申请日：2013-02-22

    申请人： Kun Xu ,  Ingemar Carlsson ,  Tzu-Yu Liu ,  Shih-Haur Shen ,  Boguslaw A. Swedek ,  Wen-Chiang Tu ,  Lakshmanan Karuppiah

    发明人： Kun Xu ,  Ingemar Carlsson ,  Tzu-Yu Liu ,  Shih-Haur Shen ,  Boguslaw A. Swedek ,  Wen-Chiang Tu ,  Lakshmanan Karuppiah

    IPC分类号： H01L21/66

    CPC分类号： H01L22/26 ,  B24B37/005 ,  B24B37/04 ,  B24B49/12 ,  H01L22/12

    摘要： A method of controlling polishing includes storing a desired ratio representing a ratio for a clearance time of a first zone of a substrate to a clearance time of a second zone of the substrate. During polishing of a first substrate, an overlying layer is monitored, a sequence of measurements is generated, and the measurements are sorted a first group associated with the first zone of the substrate and a second group associated with the second zone on the substrate. A first time and a second time at which the overlying layer is cleared is determined based on the measurements from the first group and the second group, respectively. At least one adjusted polishing pressure is calculated for the first zone based on a first pressure applied in the first zone during polishing the first substrate, the first time, the second time, and the desired ratio.

    摘要翻译： 控制抛光的方法包括将表示基材的第一区域的间隙时间的比率与基材的第二区域的间隙时间的所需比率进行存储。 在第一衬底的抛光期间，监测上覆层，产生一系列测量，并且对与衬底的第一区域相关联的第一组和与衬底上的第二区域相关联的第二组对第一组进行测量。 基于来自第一组和第二组的测量，分别确定覆盖层被清除的第一次和第二次。 基于在抛光第一基板期间第一区域中施加的第一压力，第一时间，第二时间和期望比率，针对第一区域计算至少一个调整的抛光压力。