284 articles – 2152 Notices  [english version]
Fiche détaillée Communications avec actes
International Design an Test Workshop, Beyrouth : Lebanon (2011)
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idt_2011_beznia.pdf(2.9 MB)
Analog Performance Prediction Based on Archimedean Copulas Generation Algorithm
Kamel Beznia1, Ahcène Bounceur1, 2, Reinhardt Euler1

Testing analog circuits is a complex and very time consuming task. In contrary to digital circuits, testing analog circuits needs different configurations, each of them targets a certain set of output parameters which are the performances and the test measures. One of the solutions to simplify the test task and optimize test time is the reduction of the number of to-be-tested performances by eliminating redundant ones. However, the main problem with such a solution is the identification of redundant performances. Traditional methods based on calculation of the correlation between different performances or on the defect level are shown to be not sufficient. This paper presents a new method based on the Archimedean copula generation algorithm. It predicts the performance value from each output parameter value based on the dependence (copula) between the two values. Therefore, different performances can be represented by a single output parameter; as a result, less test configurations are required. To validate the proposed approach, a CMOS imager with two performances and one test measure is used. The simulation results show that the two performances can be replaced by a single test measure. Industrial results are also reported to prove the superiority of the proposed approach.
1 :  Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
2 :  TIMA - Techniques of Informatics and Microelectronics for integrated systems Architecture
analog test – copulas theory – performances prediction – statistical modelling – test evaluation