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Design-for-Test Techniques for Opens in Undetected Branches in CMOS Latches and Flip-Flops
ANTONIO ZENTENO RAMIREZ
GUILLERMO ESPINOSA FLORES VERDAD
VICTOR HUGO CHAMPAC VILELA
Acceso Abierto
Atribución-NoComercial-SinDerivadas
Design-for-testability
Flip-flops
Latches
Resistive opens
Undetected opens
In this paper, a design-for-testability (DFT) technique to test open defects in otherwise undetectable faulty branches in fully static CMOS latches and flip-flops is proposed. The main benefits of our proposal are: 1) it is able to detect a parametric range of resistive opens defects and 2) the performance degradation is very low. The testability of the added DFT circuitry is also addressed. The cost of the proposed technique in terms of speed degradation, area overhead, and extra pins is analyzed. Comparison with other previously proposed testable latches is carried out. Circuits with the proposed technique have been designed and fabricated. Good agreement is observed between the analytical analysis, simulations and experimental measures performed on the fabricated circuits.
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS
2007-05
Artículo
Inglés
Estudiantes
Investigadores
Público en general
Antonio Zenteno Ramirez
Guillermo Espinosa
Victor Champac
ELECTRÓNICA
Versión aceptada
acceptedVersion - Versión aceptada
Aparece en las colecciones: Artículos de Electrónica

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