Patent ID: 9535113
Date: 2017-01-03
CPC Classifications: G01R

Claim:
1. A method for testing semiconductor products comprising: applying, to a semiconductor product, first test voltage and temperature stimuli based on acceleration condition parameters, said parameters comprising a temperature acceleration condition parameter and voltage acceleration condition parameter, at corresponding acceleration condition levels, said first test stimuli for detecting one or more known latent defects in the semiconductor product; collecting production results from said applying said first test stimuli; applying to said semiconductor product, test stimuli in succession, and varying, at each successive application, one or more of: a temperature acceleration condition parameter, a voltage acceleration condition parameter or both temperature and voltage acceleration condition parameters, each successive application of test stimuli applied for inducing an acceleration of a semiconductor product defect, said varying comprising applying, at one or more of said successive applications, a combination of an increased first acceleration condition parameter and/or acceleration condition level and decreasing a second acceleration condition parameter and/or acceleration condition level parameter; collecting production results from said applying further test stimuli at each said successive application; and detecting, based on said collected production results for each said first and successive application of test stimuli, a previously unknown semiconductor product defect.