Multi-patterning mask decomposition method and system
    4.
    发明授权
    Multi-patterning mask decomposition method and system 有权
    多图案掩模分解方法和系统

    公开(公告)号:US08954900B1

    公开(公告)日:2015-02-10

    申请号:US13955313

    申请日:2013-07-31

    CPC classification number: G03F7/70466 G03F7/70433

    Abstract: A portion of a layout of a single layer of an integrated circuit is to be multi-patterned. The patterns are divided into first and second groups, to be patterned on the single layer by a first mask or a second mask. For each portion of each pattern, a spacing relationship is determined between that portion and any adjacent pattern on either or both sides. A processor computes a first capacitance (C), resistance (R), or resistance-capacitance (RC) cost of assigning the first group to the first mask and the second group to the second mask, and a second cost of assigning the first group to the second mask and the second group to the first mask, based on the spacing relationships. The first group is assigned to the first mask and the second group to the second mask if the first cost is lower than the second cost.

    Abstract translation: 集成电路的单层布局的一部分是多图案化的。 图案被划分为第一和第二组,通过第一掩模或第二掩模在单层上图案化。 对于每个图案的每个部分,在该部分和任一侧或两侧上的任何相邻图案之间确定间隔关系。 处理器计算将第一组分配给第一屏蔽,将第二组分配给第二屏蔽的第一电容(C),电阻(R)或电阻 - 电容(RC)成本,以及分配第一组的第二成本 基于间隔关系将第二掩模和第二组移动到第一掩模。 如果第一个成本低于第二个成本,则第一组被分配给第一个掩码,第二个组分配给第二个掩码。

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