Patent ID: 7096140

Claim:
A test system comprising: a measuring unit configured to measure an integrated circuit; an input unit configured to receive measurement conditions of the integrated circuit; a grouping module configured to group measurement points on basis of values of quiescent supply current at the measurement points of a plurality of process margin samples, which are produced by using a plurality of process conditions, respectively, and to set measurement point groups; an average value setting module configured to set a weighted average value minimizing the sum of dispersion of the quiescent supply current due to differences in process condition between the measurement point groups; a calculating module configured to calculate a maximum estimated value of the dispersion of the quiescent supply current on the basis of the weighted average value; a storage unit configured to store a judgment specification for the measurement point groups by the measurement conditions and the values of the quiescent supply current; and a judging module configured to judge whether the integrated circuit passes or fails the judgment specification.