考虑工艺波动的快速RC互连延时统计计算

本文提出了一种考虑工艺波动影响的计算延时和过渡时间的快速统计模型。模型中使用优化的二阶模型描述工艺波动的影响，使用了闭合表达式来表示相关工艺参数和工艺波动影响下的延时和过渡时间之间的关系。仿真实验表明：提出的模型和传统算法有相似的精度和相似的统计特性，而计算效率大大高于基于HSPICE的模特卡罗分析和传统方法。

Fast statistical delay evaluation of RC interconnect in the presence of process variations

Fast statistical methods of interconnect delay and slew in the presence of process fluctuations are proposed. Using an optimized quadratic model to describe the effects of process variations, the proposed method enables closed-form expressions of interconnect delay and slew for the given variations in relevant process parameters. Simulation results show that the method, which has a statistical characteristic similar to traditional methodology, is more efficient compared to HSPICE-based Monte Carlo simulations and traditional methodology.