A structure and technique for pseudorandom-based testing of sequential circuits
Journal of Electronic Testing: Theory and Applications
Proceedings of the 1996 IEEE/ACM international conference on Computer-aided design
Built-in test generation for synchronous sequential circuits
ICCAD '97 Proceedings of the 1997 IEEE/ACM international conference on Computer-aided design
A Tutorial on Built-in Self-Test. I. Principles
IEEE Design & Test
A Tutorial on Built-In Self-Test, Part 2: Applications
IEEE Design & Test
Random pattern testing for sequential circuits revisited
FTCS '96 Proceedings of the The Twenty-Sixth Annual International Symposium on Fault-Tolerant Computing (FTCS '96)
Degree-Of-Freedom Analysis for Sequential Machines Targeting BIST Quality and Gate Area
ASP-DAC '02 Proceedings of the 2002 Asia and South Pacific Design Automation Conference
ICCD '98 Proceedings of the International Conference on Computer Design
Enhancing BIST Quality of Sequential Machines through Degree-of-Freedom Analysis
ATS '01 Proceedings of the 10th Asian Test Symposium
HOPE: an efficient parallel fault simulator for synchronous sequential circuits
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Hardware-optimal test register insertion
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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This paper introduces the novel concept ofghost-FSM as a BIST structure for sequential machines.A ghost-FSM is a contrive implicit machine that is deliberatelyembedded within the framewor of a givenFSM. A ghost-FSM remains dormant except at the testingphase, when it helps to generate those test patternsthat, otherwise, coul not be generate due to certainideosyncracies of finite state machines. It acts as an effectivetool to enhance the fault coverage of a sequentialmachine in a PRPG base BIST environment, withoutaffecting the normal operating mode of the machine. Extensiveexperimentation, carried out on MCNC benchmarks, confirm that significant improvement in testabilityis attained with occasional, very little, area overhead.