-
公开(公告)号：US07246336B2
公开(公告)日：2007-07-17
申请号：US11004309
申请日：2004-12-03
IPC分类号： G06F17/50
CPC分类号： G06F17/5031
摘要： A method for calculating ramptime propagation for integrated circuit layout patterns having pins interconnected in an oriented graph in one or more closed loops is described. Ramptime values are calculated for a first set of the pins, which are not connected to a closed loop while leaving a second set of the pins with unknown ramptime values. One or more closed loops are identified by backtracking from the pins in the second set with unknown ramptime values. A ramptime value for each pin in the one or more closed loops is calculated iteratively.
摘要翻译： 描述了一种用于计算具有在一个或多个闭合回路中的定向图中互连的引脚的集成电路布图图案的突发时间传播的方法。 对于第一组引脚计算Ramptime值，它们不连接到闭环，同时留下第二组引脚具有未知的ramptime值。 一个或多个闭环通过从第二组中的引脚回溯具有未知的ramptime值来识别。 迭代地计算一个或多个闭环中每个引脚的ramptime值。
-
公开(公告)号：US07568175B2
公开(公告)日：2009-07-28
申请号：US11757229
申请日：2007-06-01
IPC分类号： G06F17/50
CPC分类号： G06F17/5031
摘要： A method and apparatus for calculating ramptime propagation for integrated circuit layout patterns having pins interconnected in an oriented graph in one or more closed loops is described. Ramptime values are calculated for a first set of the pins, which are not connected to a closed loop while leaving a second set of the pins with unknown ramptime values. One or more closed loops are identified by backtracking from the pins in the second set with unknown ramptime values. A ramptime value for each pin in the one or more closed loops is calculated iteratively.
摘要翻译： 描述了一种用于计算具有在一个或多个闭环中的定向图中互连的引脚的集成电路布图图案的突触传播的方法和装置。 对于第一组引脚计算Ramptime值，它们不连接到闭环，同时留下第二组引脚具有未知的ramptime值。 一个或多个闭环通过从第二组中的引脚回溯具有未知的ramptime值来识别。 迭代地计算一个或多个闭环中每个引脚的ramptime值。
-
搜索结果
2 条记录 (耗时 0.016 秒)
