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Record W2150848872 · doi:10.1109/test.1996.556944

BIST fault diagnosis in scan-based VLSI environments

2002· article· en· W2150848872 on OpenAlexaff
Yuejian Wu, Saman Adham

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicVLSI and Analog Circuit Testing
Canadian institutionsNortel (Canada)
Fundersnot available
KeywordsVery-large-scale integrationBenchmark (surveying)Built-in self-testFault coverageComputer scienceFault (geology)Scheme (mathematics)Electronic circuitSequence (biology)Automatic test pattern generationSignature (topology)Stuck-at faultFault detection and isolationComputer engineeringAlgorithmEmbedded systemEngineeringArtificial intelligenceMathematicsElectrical engineering

Abstract

fetched live from OpenAlex

Existing BIST diagnostic techniques assume the existence of a very few bit errors in a test response sequence. This assumption is unrealistic since in a practical BIST environment a single defect in a circuit can usually cause hundreds or thousands of errors in a test response sequence. This paper presents a novel BIST fault diagnostic technique for scan-based VLSI devices, without making the above assumption. Based on faulty signature information our scheme guarantees correct identification of the scan flops that capture errors during test, regardless of the number of errors the circuit may produce. In addition, it is also capable of identifying the failing test vectors with a better diagnostic capacity than existing techniques. The proposed scheme does not assume any specific fault model. Thus, it is able to diagnose all voltage-detectable faults. This paper analyzes the efficiency of the scheme in terms of diagnostic coverage. Experimental results on several large ISCAS89 benchmark circuits and industrial circuits are also included.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.001
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.029
GPT teacher head0.214
Teacher spread0.185 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations41
Published2002
Admission routes1
Has abstractyes

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