Patent ID: 6098186
Filing Date: 2000-08-01
Classification: G01R

Abstract:
A method for selecting permutations of a plurality of parameters, each parameter comprising a plurality of parameter values, for applying the selected permutations as a permutation sequence to a device under test DUT, the method comprising the steps of:a) defining, for each parameter, a cycle size representing the number of parameter values in a parameter cycle to be repeated successively in the permutation sequence, whereby the following criteria have to be met:a1) the cycle sizes have to be different for all parameter cycles,a2) each cycle size has to be equal or greater than the number of different parameter values of the respective parameter, anda2) two cycle sizes must not have one or more factors in common;b) providing each parameter cycle with parameter values from that parameter according to the cycle size as defined in step (a); andc) concurrently repeating the parameter cycles.