基于工艺随机扰动的非均匀RLC互连线串扰分析

Presence of Stochastic Process Variations Based Analysis of Crosstalk of Non-uniform RLC Interconnects

提出一种基于工艺随机扰动的非均匀RLC互连线串扰分析方法;同时建立了互连线随机扰动模型。通过解耦技术将耦合非均匀互连线模型转化为独立互连线模型,从而简化了分析,并利用新的逼近模型对数值结果进行复频域的函数逼近,提高了算法精度。最后将算法应用到多根耦合互连线互连的情况,拓展了算法可计算的电路规模。实验结果表明算法可以对工艺随机扰动下的耦合互连线串扰进行有效评估。

A new method was proposed for the analysis of crosstalk of non-uniform RLC interconnects with stochastic process variations, and a stochastic perturbation model was proposed. The coupled non-uniform interconnects were decoupled into two independent interconnects, so the process of analysis was abbreviated. A new approximation model was used to approximate the digital results and the precision was improved. Finally, for expanding the size of circuit, this method was expanded to the case of more coupled interconnects. Experimental results show that the proposed method can evaluate the crosstalk of non-uniform interconnects effectively.