| Presentation | 2016-01-21 Yield evaluation of 40k gate-scale adiabatic-quantum-flux-parametron circuits Tatsuya Narama, Naoki Takeuchi, 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 are studying adiabatic quantum flux parametron (AQFP) circuit, which is very energy-efficient superconductor logic. Recently, we evaluated circuit yields of 10k-gate AQFP circuit using AIST STP2. In this study, we evaluated circuit yields using a large-scale AQFP circuit composed of as many as 40,000 AQFP gates with approximately 80,000 Josephson junctions, which was fabricated using AIST HSTP. We measured 6 chips using bipolar excitation currents, which were necessary to precisely evaluate circuit yields. We iterated the measurement with temperature cycling between room temperature and 4.2 K in the liquid helium, and we confirmed 37% of AND block yield. Furthermore, we confirmed high reproducibility of the measurement. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Superconductive Integrated Circuit / Adiabatic Quantum-Flux-Parametron / Flux Trapping / Circuit Yield |
| Paper # | SCE2015-42 |
| Date of Issue | 2016-01-14 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2016/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| 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) | Yield evaluation of 40k gate-scale adiabatic-quantum-flux-parametron circuits |
| Sub Title (in English) | |
| Keyword(1) | Superconductive Integrated Circuit |
| Keyword(2) | Adiabatic Quantum-Flux-Parametron |
| Keyword(3) | Flux Trapping |
| Keyword(4) | Circuit Yield |
| 1st Author's Name | Tatsuya Narama |
| 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 | Thomas Ortlepp |
| 3rd Author's Affiliation | CiS Forschungsinstitut für Mikrosensorik GmbH(CiS) |
| 4th Author's Name | Yuki Yamanashi |
| 4th Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 5th Author's Name | Nobuyuki Yoshikawa |
| 5th Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| Date | 2016-01-21 |
| Paper # | SCE2015-42 |
| Volume (vol) | vol.115 |
| Number (no) | SCE-412 |
| Page | pp.pp.35-40(SCE), |
| #Pages | 6 |
| Date of Issue | 2016-01-14 (SCE) |