Title
CooLBIST: An Effective Approach of Test Power Reduction for LBIST
Abstract
Low power design is becoming the mainstream in VLSI. However, since most of the technologies minimizing power consumption have only focused on normal mode operation, test mode operation is often posing the high power consumption because of the high switching activity during scan shift operation. On the other hand, test data volume has become big issue as the size of digital designs continues to grow. Logic built-in self-test (LBIST) is well known as one of the technologies to reduce test data volume. In general, LBIST uses pseudorandom pattern generator (PRPG) with high switching activity. Therefore LBIST makes high power consumption during scan shift operation. As the results, it increases test time (costs) because test engineer has to slow down shift speed to solve power issue. Now, we propose new technique called CooLBIST that controls switching activity during scan shift operation of LBIST. Application result shows that new activity control technique succeeds in reducing the switching activity during scan shift operation without a decline in fault coverage.
Year
DOI
Venue
2008
10.1109/ATS.2008.36
ATS
Field
DocType
ISSN
Logic synthesis,Fault coverage,Computer science,Logic built-in self-test,Real-time computing,Electronic engineering,Integrated circuit design,Test data,Very-large-scale integration,Built-in self-test,Low-power electronics
Conference
1081-7735
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Jun Matsushima1134.09
Yoichi Maeda2135.96
Masahiro Takakura353.18