Paper Abstract and Keywords |
Presentation |
2022-01-21 14:00
Study of Reflection Effects and Stabilization of High-Speed Operation for Long Interconnection of Adiabatic Quantum-Flux-Parametron Logic Circuits Naoya Mizushima, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa (Yokohama National Univ.) SCE2021-13 Link to ES Tech. Rep. Archives: SCE2021-13 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The adiabatic quantum-flux-parametron (AQFP) circuit is a superconducting logic circuit with extremely low power consumption. Many AQFP large-scale circuits have been designed and demonstrated so far. However, there is a problem that operation of AQFP become unstable in long-distance signal transmission during high-speed operation, which severely limits the wiring length and increases the circuit area and latency. To solve this problem, we conducted simulations using a transmission line model. We confirmed that the cause of the unstable operation is the multiple reflection of signal current between the gates. We showed that we can get correct operation inserting normal conductive resistance Rpar between input port of wire and ground. We evaluated the margin of JJ and energy consumption of the citcuit with Rpar and the optimal value of Rpar was determined. We also fabricated the circuit with Rpar inserted and measured the BER to demonstrate the operation and evaluate the effectiveness. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
AQFP / wire length / reflection / BER / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 340, SCE2021-13, pp. 6-11, Jan. 2022. |
Paper # |
SCE2021-13 |
Date of Issue |
2022-01-14 (SCE) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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 |
SCE2021-13 Link to ES Tech. Rep. Archives: SCE2021-13 |
Conference Information |
Committee |
SCE |
Conference Date |
2022-01-21 - 2022-01-21 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
SCE |
Conference Code |
2022-01-SCE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Study of Reflection Effects and Stabilization of High-Speed Operation for Long Interconnection of Adiabatic Quantum-Flux-Parametron Logic Circuits |
Sub Title (in English) |
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Keyword(1) |
AQFP |
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wire length |
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reflection |
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BER |
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1st Author's Name |
Naoya Mizushima |
1st Author's Affiliation |
Yokohama National University (Yokohama National Univ.) |
2nd Author's Name |
Naoki Takeuchi |
2nd Author's Affiliation |
Yokohama National University (Yokohama National Univ.) |
3rd Author's Name |
Yuki Yamanashi |
3rd Author's Affiliation |
Yokohama National University (Yokohama National Univ.) |
4th Author's Name |
Nobuyuki Yoshikawa |
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Yokohama National University (Yokohama National Univ.) |
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Speaker |
Author-1 |
Date Time |
2022-01-21 14:00:00 |
Presentation Time |
25 minutes |
Registration for |
SCE |
Paper # |
SCE2021-13 |
Volume (vol) |
vol.121 |
Number (no) |
no.340 |
Page |
pp.6-11 |
#Pages |
6 |
Date of Issue |
2022-01-14 (SCE) |