Title
An Accumulator-Based BIST Approach for Two-Pattern Testing
Abstract
Two-pattern tests target the detection of most commonfailure mechanisms in cmos vlsi circuits, which aremodeled as stuck-open or delay faults. In this paper theAccumulator-Based Two-pattern generation (ABT) algorithm ispresented, that generates an exhaustive n-bit two-pattern testwithin exactly 2^n × (2^n − 1) + 1 clock cycles, i.e. within thetheoretically minimum time. The ABT algorithm is implementedin hardware utilizing an accumulator whose inputs are driven byeither a binary counter (counter-based implementation) or a LinearFeedback Shift Register (LFSR-based implementation). With thecounter-based implementation different modules, having differentnumber of inputs, can be efficiently tested using the samegenerator. For circuits that do not contain counters, the LFSR-based implementation can be implemented, since registers (thattypically drive the accumulator inputs into dapatapath cores) can beeasily modified to LFSRS with small increase in the hardwareoverhead. The great advantage of the presented scheme is that it canbe implemented by augmening existing datapath components, rather thanbuilding a new pattern generation structure.
Year
DOI
Venue
1999
10.1023/A:1008340925177
J. Electronic Testing
Keywords
Field
DocType
built-in self test,delay fault testing,stuck-open fault testing,two-pattern testing
Datapath,Pattern generation,Computer science,Electronic engineering,Real-time computing,Electronic circuit,Minimum time,Cmos vlsi circuits,Accumulator (structured product),Binary number,Built-in self-test
Journal
Volume
Issue
ISSN
15
3
1573-0727
Citations 
PageRank 
References 
7
0.47
13
Authors
4
Name
Order
Citations
PageRank
I. Voyiatzis1399.33
A. Paschalis235831.08
D. Nikolos329131.38
Constantin Halatsis4333.15