279 articles – 2096 references  [version française]
Detailed view Article in peer-reviewed journal
IEEE Trans. on CAD of Integrated Circuits and Systems TCAD 9, 30 (2011) 1400-1410
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Estimation of Analog Parametric Test Metrics Using Copulas
Ahcène Bounceur1, 2, S. Mir1, H. Stratigopoulos1

A new technique for the estimation of analog parametric test metrics at the design stage is presented in this paper. This technique employs the copulas theory to estimate the distribution between random variables that represent the performances and the test measurements of the circuit under test (CUT). A copulas-based model separates the dependencies between these random variables from their marginal distributions, providing a complete and scale-free description of dependence that is more suitable to be modeled using well-known multivariate parametric laws. The model can be readily used for the generation of an arbitrarily large sample of CUT instances. This sample is thereafter used for estimating parametric test metrics such as defect level (or test escapes) and yield loss. We demonstrate the usefulness of the proposed technique to evaluate a built-in-test technique for a radio frequency low noise amplifier and to set test limits that result in a desired tradeoff between test metrics. In addition, we compare the proposed technique with previous ones that rely on direct density estimation.
1:  TIMA - Techniques of Informatics and Microelectronics for integrated systems Architecture
2:  Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Lab-STICC_UBO_CACS_MOCS
copulas theory – test evaluation – bist estimation – analog and mixed circuit testing