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Paper Abstract and Keywords
Presentation 2016-03-01 17:30
[Memorial Lecture] A Closed-Form Stability Model for Cross-Coupled Inverters Operating in Sub-Threshold Voltage Region
Tatsuya Kamakari, Jun Shiomi, Tohru Ishihara, Hidetoshi Onodera (Kyoto Univ.) VLD2015-131
Abstract (in Japanese) (See Japanese page) 
(in English) A cross-coupled inverter which is an essential element of on-chip memory subsystems plays an important role in synchronous LSI circuits.
In this paper, an analytical stability model for a cross-coupled inverter operating in a sub-threshold voltage region is proposed.
The proposed model analytically shows that the minimum operating voltage of the cross-coupled inverter distributes normally in a high-$sigma$ region if the distribution of the threshold voltage is Gaussian.
The minimum supply voltage at which the yield of the cross-coupled inverter becomes a specific value can be accurately derived by a simple calculation using the model. Monte-Carlo simulation assuming a commercial 28~nm process technology demonstrates the accuracy and the validity of the proposed model.
Based on the model, this paper shows strategies for variation tolerant memory design.
Keyword (in Japanese) (See Japanese page) 
(in English) Cross-coupled Inverter / Yield / Sability / Analytical Model / Sub-Threshold Voltage / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 465, VLD2015-131, pp. 117-117, Feb. 2016.
Paper # VLD2015-131 
Date of Issue 2016-02-22 (VLD) 
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)
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Conference Information
Committee VLD  
Conference Date 2016-02-29 - 2016-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Seinen Kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To VLD 
Conference Code 2016-02-VLD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Closed-Form Stability Model for Cross-Coupled Inverters Operating in Sub-Threshold Voltage Region 
Sub Title (in English)  
Keyword(1) Cross-coupled Inverter  
Keyword(2) Yield  
Keyword(3) Sability  
Keyword(4) Analytical Model  
Keyword(5) Sub-Threshold Voltage  
1st Author's Name Tatsuya Kamakari  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Jun Shiomi  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Tohru Ishihara  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Hidetoshi Onodera  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Date Time 2016-03-01 17:30:00 
Presentation Time 25 
Registration for VLD 
Paper # IEICE-VLD2015-131 
Volume (vol) IEICE-115 
Number (no) no.465 
Page p.117 
#Pages IEICE-1 
Date of Issue IEICE-VLD-2016-02-22 

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