Relevant Signals and Devices for Failure Analysis of Analog and Mixed-signal Circuits

Finding critical nodes and devices inside a circuit is important to have a reliable and safe circuit. It is also a necessary information to successfully solve a failure analysis. Besides, this is a difficult task when dealing with analog and mixed signal circuits for safety applications. For complex designs, the list of signals that influences a selected output is not easy to be deduced. This paper proposes a solution to meet these needs. It is a method that is potentially opened to a broader application domain than failure analysis. The obtained results are encouraging and show the advantages of such approach.