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An improved scan design for minimization of test power under routing constraint

  • Harbin Institute of Technology Shenzhen
  • University of Maryland, College Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Scan cell ordering method is widely applied to reduce test power. Such ordering may result in significant routing overhead. In this paper, we propose a new scan design method to minimize test power under routing constraint. We base on the characteristics of scan cell distribution to cluster them prior to the ordering so as to satisfy routing constraint. Flexible scan cells are identified from each cluster to achieve further reduction of test power under routing constraint. Scan cells are finally ordered based on the evaluation of the transitions caused by connected scan cells during test. The experimental results show that the scan designs by our method can always achieve lower test power than those by other existing optimization method while satisfying the routing constraint.

Original languageEnglish
Title of host publication2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages629-632
Number of pages4
ISBN (Electronic)9781479983919
DOIs
StatePublished - 27 Jul 2015
Externally publishedYes
EventIEEE International Symposium on Circuits and Systems, ISCAS 2015 - Lisbon, Portugal
Duration: 24 May 201527 May 2015

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2015-July
ISSN (Print)0271-4310

Conference

ConferenceIEEE International Symposium on Circuits and Systems, ISCAS 2015
Country/TerritoryPortugal
CityLisbon
Period24/05/1527/05/15

Keywords

  • K-means clustering
  • Routing Constraint
  • Scan chain ordering
  • Test power

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