Patent ID: 8315729
Filing Date: 2012-11-20
Classification: G01R,G06F,H01L

Abstract:
1. A method for analyzing a functionality of at least two manufactured products, the method comprising: manufacturing a first product and a second product by using similar manufacturing steps, respectively; collecting first measurements associated with the first manufactured product; collecting second measurements associated with the second manufactured product; detecting a deviation in functionality in the first manufactured product, the second manufactured product or both the first and second manufactured products, based on the first collected measurements and the second collected measurements; identifying a common feature between the first collected measurements and the second collected measurements; finding a distinguishable feature between the first collected measurements and the second collected measurements; determining first coefficients, corresponding to the similar manufacturing steps, based on the identified common feature and found distinguishable feature; applying the determined first coefficients to the first collected measurements and the second collected measurements; evaluating a first statistical significance of the first coefficients; determining whether the first statistical significance is larger than a threshold; identifying a cause of the deviation in functionality in the first manufactured product or the second manufactured product or both the first and second manufactured products as a result from one or more of the similar manufacturing steps in response to determining that the first statistical significance is larger than the threshold, wherein a processor performs one or more of: the collecting the first measurements, the collecting the second measurements, the detecting, the identifying, the finding, the evaluating and the determining steps.