Patent ID: 6711519
Filing Date: 2004-03-23
Classification: G01R

Abstract:
A method for testing electronic components, comprising the steps of:subjecting a first terminal of a component to an electrical potential at an initial date, measuring an output response at a second terminal of this component at a measurement date, comparing the measured response with lower and upper acceptance limits for the acceptance or rejection of the component as a function of this comparison to identify good quality components, defining the measurement date by means of a criterion applied to compare an intermediate statistical image with a nominal statistical image, wherein the intermediate statistical image represents at least a plurality of responses obtained at a tested intermediate measurement date, and the nominal statistical image represents responses obtained at a nominal measurement date, the responses being obtained from a population of good quality components, further wherein: the criterion applied to compare the statistical images with one another comprises an assessment of a range of the responses obtained for each of the statistical images, and an assessment of a mean of the responses obtained for each of the statistical images, and the measurement date defined is the earliest possible intermediate measurement date that includes a mean corresponding to the tested measurement date that is within an interval of acceptance with respect to the nominal mean, wherein the interval of acceptance of the mean is determined as a function of a nominal standard deviation of the responses obtained on the nominal measurement date and as a function of a statistical probability.