Aging gracefully with approximation

Jongho Kim, Heesu Kim, Hussam Amrouch, Jörg Henkel, Andreas Gerstlauer, Kiyoung Choi

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

4 Scopus citations

Abstract

This paper presents a design methodology to turn aging-induced chip slowdown into approximation without adding reliability guardband or increasing supply voltage. It guarantees always-best quality while the system is under aging. It is based on run-time monitoring of critical path delay. If the delay increases due to aging, the proposed approach curtails the critical path at the cost of precision reduction. We evaluate our approach at the component level as well as microarchitecture level. The evaluation results show that the approach reduces the dynamic and static power consumptions by 19.8% and 10.2%, respectively, with minimal area overhead and quality degradation.

Original languageEnglish
Title of host publication2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728103976
DOIs
StatePublished - 2019
Externally publishedYes
Event2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan
Duration: 26 May 201929 May 2019

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2019-May
ISSN (Print)0271-4310

Conference

Conference2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
Country/TerritoryJapan
CitySapporo
Period26/05/1929/05/19

Keywords

  • Aging
  • Aging monitor
  • Approximation
  • BTI
  • Chip reliability
  • Design guardband
  • Low power
  • Monitoring circuit

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