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Paper Abstract and Keywords
Presentation 2014-01-28 10:00
[Invited Talk] Adaptive Performance Compensation with On-Chip Variation Monitoring
Masanori Hashimoto (Osaka Univ.) ICD2013-100 Link to ES Tech. Rep. Archives: ICD2013-100
Abstract (in Japanese) (See Japanese page) 
(in English) This paper discusses adaptive performance control with two types of on-chip variation sensors. The first sensor
aims to extract several device-parameters for performance adaptation, and introduces a method that accurately estimates device-
parameters using a single ring oscillator. The second sensors, which are embedded into functional circuits, predict timing
errors due to PVT variations and aging. By controlling circuit performance according to the sensor outputs, PVT worst-case
design can be overcome and power dissipation can be reduced while satisfying performance requirements. Measurement results
of a subthreshold adder on 65-nm test chips show that the adaptive speed control can compensate PVT variations and
improve energy efficiency by up to 46% compared to the worst-case design and operation with guardbanding. This paper also
discusses stochastic fast estimation of timing errors inherently involved in adaptive performance control.
Keyword (in Japanese) (See Japanese page) 
(in English) Adaptive performance compensation / variation sensor / manufacturing variability / environmental fluctuation / aging / timing error / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 419, ICD2013-100, pp. 1-6, Jan. 2014.
Paper # ICD2013-100 
Date of Issue 2014-01-21 (ICD) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ICD2013-100 Link to ES Tech. Rep. Archives: ICD2013-100

Conference Information
Committee ICD  
Conference Date 2014-01-28 - 2014-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. Tokeidai Kinenkan 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ICD 
Conference Code 2014-01-ICD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adaptive Performance Compensation with On-Chip Variation Monitoring 
Sub Title (in English)  
Keyword(1) Adaptive performance compensation  
Keyword(2) variation sensor  
Keyword(3) manufacturing variability  
Keyword(4) environmental fluctuation  
Keyword(5) aging  
Keyword(6) timing error  
1st Author's Name Masanori Hashimoto  
1st Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2014-01-28 10:00:00 
Presentation Time 60 
Registration for ICD 
Paper # IEICE-ICD2013-100 
Volume (vol) IEICE-113 
Number (no) no.419 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-ICD-2014-01-21 

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