摘要： 影响同时故障模拟方法效率的原因：一是对扇出重汇聚的过多判定，二是故障表占用空间大，对表的处理时间长。针对上述两点，提出了基于电路结构重组以及两级模拟的策略，以提高故障模拟的效率。针对ＩＳＣＡＳ８９电路的实验结果也表明了其有效性。

关键词: 时序电路, 故障模拟, 故障表

Abstract: There are two reasons affect the efficiency of concurrent fault simulation, one is overfull computation for the reconvergence gateto identify the testability of the fault the other is that the fault list take up memory space highly .This paper presents the methods ofreconstruction of the circuit and two level simulation for improving the efficiency of concurrent fault simulation. Experimental for ISCAS89benchmark circuits verifies its effecting.

中图分类号: 

• TN407