March-based SRAM diagnostic algorithm for distinguishing Stuck-At and transition faults

M. I. Masnita; W. H. W. Zuha; R. M. Sidek; A. H. Izhal

doi:10.1587/elex.6.1091

LETTER

March-based SRAM diagnostic algorithm for distinguishing Stuck-At and transition faults

M. I. Masnita, W. H. W. Zuha, R. M. Sidek, A. H. Izhal

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Keywords: SRAM testing, march tests, march-based diagnostic algorithm, Functional Fault Models (FFMs), Stuck-At Faults (SAF), transition faults

JOURNAL FREE ACCESS

2009 Volume 6 Issue 15 Pages 1091-1097

DOI https://doi.org/10.1587/elex.6.1091

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Abstract

March tests have been widely used for detecting functional faults during SRAM testing. Recent development has extended the March test for diagnostic purpose to locate and identify the fault types. This paper analyses March algorithms for detection and diagnosis of Stuck-At Faults (SAFs) and Transition Faults (TFs). Unfortunately, the algorithms under studied are not able to distinguish between the two faults. Therefore, this paper proposes a new March-based diagnostic algorithm that can differentiate SAFs from TFs.

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