Title
Reducing scan-shift power through scan partitioning and test vector reordering
Abstract
Excessive test power dissipation results in over-testing, IR-drop, yield loss and even heat damage to the circuit under test (CUT). An efficient scan-shift power reduction scheme based on scan chain partitioning and test vector reordering is presented in this paper. After partitioning the scan chains into several segments equally, a heuristic ant colony optimization (ACO) algorithm is introduced to reorder the test vectors to minimize the clashes between the previous test response and current test vector, which leads to scan-shift power reduction further. Experimental results show that the proposal can achieve 3.48% scan-shift power reduction on average with the help of ACO test vectors reordering after scan partitioning. Furthermore, the proposed scan-shift power reduction technique can be acceptable for any scan-based testing architecture without affecting test application time, test fault coverage, performance and/or routing cost of the CUT.
Year
DOI
Venue
2014
10.1109/ICECS.2014.7050031
ICECS
Keywords
Field
DocType
integrated circuit testing,power aware computing,scan chain partitioning,ant colony optimisation,circuit optimisation,scan-based testing architecture,test power dissipation,heuristic aco algorithm,cut,performance evaluation,scan-shift power reduction scheme,test vector reordering,heuristic ant colony optimization algorithm,circuit under test
Ant colony optimization algorithms,Automatic test pattern generation,Test vector,Heuristic,Fault coverage,Computer science,Dissipation,Parallel computing,Scan chain,Test compression
Conference
Citations 
PageRank 
References 
1
0.35
10
Authors
3
Name
Order
Citations
PageRank
Tiebin Wu110.35
Li Zhou2692.77
Hengzhu Liu38623.28