摘要
本文简述了一种积木块式版图布线系统。它的特征是基于通道的定义和排序,动态地完成布线任务。它包括:一种层次式的自上而下的电源网布线和电源网的系统实现策略;一种结合了总体压缩的高效的多子图合并的总体布线方法。有效地匹配了通道的容量与布线区域的密度;带有通道压缩的L型通道和直通道的一体化通道布线完成了详细布线;环形通道的布线完成了包括电源网在内的I/O压焊块的连接。在测试标准例子的结果比较表明BROS要优于其它的BBL布线系统。
A routing system for building-block layout is described.The feature in routing is a dynamicarchitecture based on the concept of routing region definition and ordering. It included:An efficient hierarchical top-down power nets routing and a strategy for its systematic implementation;A highly efficient global router used multiple component growth and mergingmethod is used in conjunction with a global spacer to match the channel capacity and routingdensity;An L-shaped channel router together with a straight channel router is used in conjunctionwith the channel spacer for detailed, routing;A ring router makes a connection to theI/O pads, including power nets. The comparison on benchmark examples concludes BROSoutperforms other available BBL routing system.
基金
国家自然科学基金
