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    • 9. 发明授权
    • Group bounding box region-constrained placement for integrated circuit design
    • 集成电路设计的边界区域约束布局
    • US08701070B2
    • 2014-04-15
    • US13613678
    • 2012-09-13
    • Yi-Lin ChuangChun-Cheng KuYun-Han LeeShao-Yu WangWei-Pin ChangchienChin-Chou Liu
    • Yi-Lin ChuangChun-Cheng KuYun-Han LeeShao-Yu WangWei-Pin ChangchienChin-Chou Liu
    • G06F17/50
    • G06F17/5072
    • Among other things, one or more systems and techniques for defining a group bounding box for related cells of an integrated circuit, and generating a new layout for the integrated circuit comprising the group bounding box are provided herein. That is, one or more group bounding boxes are defined based upon positional values of related cells. Such group bounding boxes are placed within the new layout based upon a placement technique, such as an objective function that takes into account wire length, timing, and cell density, for example. The one or more group bounding boxes are sized or reshaped to reduce cell overlap within the new layout. In this way, the new layout comprises related cells, bound by one or more group bounding boxes, that are placed within the new layout according to a configuration that mitigates wire length and timing delay of the integrated circuit.
    • 除此之外,本文提供了一种或多种用于定义用于集成电路的相关单元的组边界框并且为包括组边界框的集成电路生成新布局的系统和技术。 也就是说,基于相关单元的位置值来定义一个或多个组边界框。 基于诸如考虑线长度,定时和单元密度的目标函数的放置技术,将这样的组边界框放置在新布局内。 一个或多个组边界框的大小或重新形状以减少新布局中的单元格重叠。 以这种方式,新布局包括根据减轻集成电路的线长度和定时延迟的配置放置在新布局内的由一个或多个组边界框绑定的相关单元。