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Incremental fault diagnosis

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2 Author(s)
Liu, J.B. ; High-Performance Tools & Methodology Group, Austin, TX, USA ; Veneris, A.

Fault diagnosis is important in improving the circuit-design process and the manufacturing yield. Diagnosis of today's complex defects is a challenging problem due to the explosion of the underlying solution space with the increasing number of fault locations and fault models. To tackle this complexity, an incremental diagnosis method is proposed. This method captures faulty lines one at a time using the novel linear-time single-fault diagnosis algorithms. To capture complex fault effects, a model-free incremental diagnosis algorithm is outlined, which alleviates the need for an explicit fault model. To demonstrate the applicability of the proposed method, experiments on multiple stuck-at faults, open-interconnects and bridging faults are performed. Extensive results on combinational and full-scan sequential benchmark circuits confirm its resolution and performance.

Published in:

Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:24 ,  Issue: 2 )