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    • 2. 发明授权
    • Method and apparatus for use of hidden decoupling capacitors in an integrated circuit design
    • 在集成电路设计中使用隐藏去耦电容器的方法和装置
    • US07231625B2
    • 2007-06-12
    • US10952194
    • 2004-09-28
    • Michael N. DillonChristopher J. Tremel
    • Michael N. DillonChristopher J. Tremel
    • G06F17/50
    • G06F17/5072
    • A method and apparatus are provided for placing cells in an integrated circuit layout pattern. A base layer layout pattern defines an array of base cell locations and base layer elements, wherein at least portions of some rows in the array are reserved for decoupling capacitor cells. Each decoupling capacitor cell has a width, which is greater than that of a single base cell location and which is abstracted from the base layer layout pattern. A cell library defines a plurality of cells, including a macro cell having open rows consistent with the rows in the base layer layout pattern that are reserved for the decoupling capacitor cells. The width of each decoupling capacitor cell is abstracted from the macro cell. Cells from the cell library, including the macro cell, are placed within a design layout pattern relative to the base layer layout pattern. An area consumed by the macro cell within the design layout pattern is independent of the width of the decoupling capacitor cells.
    • 提供了一种用于将电池放置在集成电路布局图案中的方法和装置。 基层布局图形定义基本单元位置和基层元素的阵列,其中阵列中的一些行的至少部分被保留用于去耦合电容器单元。 每个去耦电容器单元的宽度大于单个基本单元位置的宽度,并且从基层布局图案中抽取出来。 单元库定义多个单元,包括具有与为去耦电容器单元保留的基层布局图案中的行一致的开放行的宏单元。 每个去耦电容器单元的宽度从宏单元中抽象出来。 来自细胞库的细胞(包括宏细胞)相对于基底层布局图案被放置在设计布局图案内。 设计布局图案内宏单元消耗的面积与去耦电容单元的宽度无关。
    • 6. 发明授权
    • Method of repeater insertion for hierarchical integrated circuit design
    • 用于分层集成电路设计的中继器插入方法
    • US06662349B2
    • 2003-12-09
    • US10086232
    • 2002-02-27
    • David A. MorganRichard D. BlinneJames A. JensenChristopher J. Tremel
    • David A. MorganRichard D. BlinneJames A. JensenChristopher J. Tremel
    • G06F1750
    • G06F17/5068
    • A method of repeater insertion in a hierarchical integrated circuit includes defining an initial floorplan for a parent macro at a parent level in a hierarchical circuit design; passing outline and pin locations from the parent macro to a child macro sharing a common area with the parent macro; defining or modifying a floor plan for the child macro at a child level in the hierarchical circuit design in response to the outline and pin locations passed from the parent macro; passing physical restrictions in the child macro from the child macro to the parent macro; determining a location for a cell at the parent level of the hierarchical circuit design in an area of the parent macro shared by the child macro in response to the physical restrictions passed from the child macro; passing physical constraints in the parent macro associated with placement and routing of the cell from the parent level to the child macro; and generating an abstract representation for the child macro at the child level that includes an area cut out of the child macro corresponding to the location of the cell.
    • 在分级集成电路中插入中继器的方法包括:在分级电路设计中,在父级别定义母宏的初始平面图; 将轮廓和引脚位置从父宏传递到与父宏共享公共区域的子宏; 响应于从父宏传送的轮廓和针位置,在分级电路设计中定义或修改子级别的子宏的平面图; 将子宏中的子宏中的物理限制从子宏传递到父宏; 响应于从所述子宏中传递的物理限制,在所述子宏宏共享的所述母宏的区域中确定所述分级电路设计的所述母级的单元的位置; 在与从父级别到子宏的单元的放置和路由相关联的父宏中传递物理约束; 以及生成子级别的子宏的抽象表示,该子宏包括从对应于该单元的位置的子宏中切出的区域。