On BTI Aging Rejuvenation in Memory Address Decoders

Cemil Cem Gursoy, Daniël Kraak, Foisal Ahmed, Mottaqiallah Taouil, Maksim Jenihhin, Said Hamdioui

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

Memory designs require timing margins to compensate for aging and fabrication process variations. With technology downscaling, aging mechanisms became more apparent, and larger margins are considered necessary. This, in return, means a larger area requirement and lower performance for the memory. Bias Temperature Instability (BTI) is one of the main contributors to aging, which slows down transistors and ultimately causes permanent faults. In this paper, first, we propose a low-cost aging mitigation scheme, which can be applied to existing hardware to mitigate aging on memory address decoder logic. We mitigate the BTI effect on critical transistors by applying a rejuvenation workload to the memory. Such an auxiliary workload is executed periodically to rejuvenate transistors that are located on critical paths of the address decoder. Second, we analyze workloads' efficiency to optimize the mitigation scheme. Experimental results performed with realistic benchmarks demonstrate several-times lifetime extension with a negligible execution overhead.
Original languageEnglish
Title of host publicationProceedings of the 2022 IEEE 23rd Latin American Test Symposium (LATS)
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)978-1-6654-5707-1
ISBN (Print)978-1-6654-5708-8
DOIs
Publication statusPublished - 2022
Event2022 IEEE 23rd Latin American Test Symposium (LATS) - Montevideo, Uruguay
Duration: 5 Sept 20228 Sept 2022

Conference

Conference2022 IEEE 23rd Latin American Test Symposium (LATS)
Country/TerritoryUruguay
CityMontevideo
Period5/09/228/09/22

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public

Keywords

  • BTI
  • aging
  • rejuvenation
  • mitigation
  • memory
  • address decoder

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