| Presentation | 2015-08-04 Proposal and Demonstration of Magnetically Coupled Quantum Flux Latch Naoki Tsuji, Naoki Takeuchi, Tatsuya Narama, Thomas Ortlepp, Yuki Yamanashi, Nobuyuki Yoshikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been developing the adiabatic quantum-flux-parametron (AQFP) as an ultra-low-power superconductor logic. In a previous study, we proposed and demonstrated the quantum-flux-latch (QFL), which is a compact and compatible latch for AQFP logic. The QFL is composed of an AQFP buffer gate and a storage loop, which are directly connected to each other. However, the operation margins were not sufficiently wide due to back actions from neighboring gates. In the present study, we propose a magnetically coupled QFL (MC-QFL), where the storage loop and the buffer gate are physically separated and magnetically coupled with each other so as to avoid the trade-off in the operation margins. The simulation results showed that the critical parameter margin of the MC-QFL is twice as large as that of the previously designed QFL. For comparison, we fabricated and demonstrated both the previously designed QFL and the MC-QFL. The measurement results showed that the MC-QFL has wider operation margins compared with the previously designed QFL. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | QFP / adiabatic logic / latch |
| Paper # | SCE2015-13 |
| Date of Issue | 2015-07-28 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2015/8/4(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yokohama National Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal processing technologies and their applications, etc. |
| Chair | Nobuyuki Yoshikawa(Yokohama National Univ.) |
| Vice Chair | |
| Secretary | (Yokohama National Univ.) |
| Assistant | Hiroyuki Akaike(Nagoya Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal and Demonstration of Magnetically Coupled Quantum Flux Latch |
| Sub Title (in English) | |
| Keyword(1) | QFP |
| Keyword(2) | adiabatic logic |
| Keyword(3) | latch |
| 1st Author's Name | Naoki Tsuji |
| 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 | Tatsuya Narama |
| 3rd Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 4th Author's Name | Thomas Ortlepp |
| 4th Author's Affiliation | CiS Research Institute for Microsensor Systems(CiS) |
| 5th Author's Name | Yuki Yamanashi |
| 5th Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 6th Author's Name | Nobuyuki Yoshikawa |
| 6th Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| Date | 2015-08-04 |
| Paper # | SCE2015-13 |
| Volume (vol) | vol.115 |
| Number (no) | SCE-173 |
| Page | pp.pp.29-33(SCE), |
| #Pages | 5 |
| Date of Issue | 2015-07-28 (SCE) |