基于统计概率分布的互连时延模型具有效率高、准确性好的特点,但此类方法往往包含一些查表运算.本文提出了一种基于Birnbaum-Saunders分布的互连线时延模型,避免了查表运算,且仅需要采用前两个瞬态,计算简单,准确性较好,并提出了一种精度修正算法,使该方法具有更好的适应性. The interconnection delay model based on statistical probability distribution has the characteristics of high efficiency and good accuracy, but such methods often include some lookup operations.In this paper, an interconnect delay model based on Birnbaum-Saunders distribution is proposed to avoid A look-up table operation, and only need to use the first two transients, the calculation is simple, the accuracy is better, and a precision correction algorithm is proposed, which makes the method has better adaptability.