Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories

Existing work on fault tolerance in hybrid nanoelectronic memories (hybrid memories) assumes that faults only occur in the memory array and the encoder, not in the decoder. However, as the decoder is structured using scaled CMOS devices, it is also becoming vulnerable to faults. This paper present...

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Main Authors: Haron, Nor Zaidi, Hamdioui, Said
Format: Conference or Workshop Item
Language:English
Published: 2011
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Online Access:http://eprints.utem.edu.my/id/eprint/4531/1/NZBHaron_DATE11.pdf
http://eprints.utem.edu.my/id/eprint/4531/
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spelling my.utem.eprints.45312015-05-28T03:25:57Z http://eprints.utem.edu.my/id/eprint/4531/ Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories Haron, Nor Zaidi Hamdioui, Said TK Electrical engineering. Electronics Nuclear engineering Existing work on fault tolerance in hybrid nanoelectronic memories (hybrid memories) assumes that faults only occur in the memory array and the encoder, not in the decoder. However, as the decoder is structured using scaled CMOS devices, it is also becoming vulnerable to faults. This paper presents a cost-efficient fault-tolerant decoder for hybrid memories that are impacted by a high degree of non-permanent clustered faults. Fault-tolerant capability is achieved by combining partial hardware redundancy scheme and on-line masking scheme based on Muller C-gates. In addition, the cost-efficient implementation of the decoder is realized by modifying the decoding sequence and implementing it based on time redundancy. Experimental results show that the proposed decoder is able to provide better reliability of the overall hybrid memory system, yet requires smaller area as compared to conventional decoder. For example, when assuming the fault ratio between decoder and memory array is 1:10 and at 10% fault rate, the proposed decoder ensures 1% higher reliability of the overall hybrid memory system. Moreover, the proposed decoder realizes 18.4% smaller area overhead for 64-bit word hybrid memory. 2011 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utem.edu.my/id/eprint/4531/1/NZBHaron_DATE11.pdf Haron, Nor Zaidi and Hamdioui, Said (2011) Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories. In: Design, Automation & Test in Europe Conference , 14-18 March 2011, Grenoble, France.
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Haron, Nor Zaidi
Hamdioui, Said
Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories
description Existing work on fault tolerance in hybrid nanoelectronic memories (hybrid memories) assumes that faults only occur in the memory array and the encoder, not in the decoder. However, as the decoder is structured using scaled CMOS devices, it is also becoming vulnerable to faults. This paper presents a cost-efficient fault-tolerant decoder for hybrid memories that are impacted by a high degree of non-permanent clustered faults. Fault-tolerant capability is achieved by combining partial hardware redundancy scheme and on-line masking scheme based on Muller C-gates. In addition, the cost-efficient implementation of the decoder is realized by modifying the decoding sequence and implementing it based on time redundancy. Experimental results show that the proposed decoder is able to provide better reliability of the overall hybrid memory system, yet requires smaller area as compared to conventional decoder. For example, when assuming the fault ratio between decoder and memory array is 1:10 and at 10% fault rate, the proposed decoder ensures 1% higher reliability of the overall hybrid memory system. Moreover, the proposed decoder realizes 18.4% smaller area overhead for 64-bit word hybrid memory.
format Conference or Workshop Item
author Haron, Nor Zaidi
Hamdioui, Said
author_facet Haron, Nor Zaidi
Hamdioui, Said
author_sort Haron, Nor Zaidi
title Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories
title_short Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories
title_full Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories
title_fullStr Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories
title_full_unstemmed Cost-Efficient Fault-Tolerant Decoder for Hybrid Nanoelectronic Memories
title_sort cost-efficient fault-tolerant decoder for hybrid nanoelectronic memories
publishDate 2011
url http://eprints.utem.edu.my/id/eprint/4531/1/NZBHaron_DATE11.pdf
http://eprints.utem.edu.my/id/eprint/4531/
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score 13.211869