Simulation method of wafer warpage
    4.
    发明申请
    Simulation method of wafer warpage 审中-公开
    晶圆翘曲的仿真方法

    公开(公告)号:US20070087529A1

    公开(公告)日:2007-04-19

    申请号:US11580352

    申请日:2006-10-13

    IPC分类号: H01L21/30 H01L21/46

    CPC分类号: H01L21/76838

    摘要: Disclosed is a simulation method for determining wafer warpage. This method includes dividing layers and evaluating a composition ratio of materials composing the layers. The method mathematically transforms a semiconductor device, which is constructed as a complicated structure with various materials, into a simplified, mathematically equivalent stacked structure comprising a plurality of unit layer, and utilizes values of mechanical characteristics, which are obtained from the transformed layer structure, for estimating wafer warpage. As a result, it is possible to complete an operation of wafer warpage simulation using information about pattern density of the semiconductor device.

    摘要翻译: 公开了一种用于确定晶片翘曲的模拟方法。 该方法包括分层和评估构成层的材料的组成比。 该方法将构成为具有各种材料的复杂结构的半导体器件数学地变换为包括多个单位层的简化的,数学上等效的堆叠结构,并利用从变换层结构获得的机械特性值, 用于估计晶片翘曲。 结果,可以使用关于半导体器件的图案密度的信息来完成晶片翘曲模拟的操作。