A Study of Nano-Scale, High-Speed Logic Circuits using a Phase Quantum

• Project/Area Number: 18360166
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Yokohama National University
• Principal Investigator: YOSHIKAWA Nobuyuki Yokohama National University, 大学院・工学研究院, 教授 (70202398)
• Co-Investigator(Kenkyū-buntansha): KANEDA Hisayoshi 横浜国立大学, 大学院・工学研究院, 助手 (30242382)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥16,510,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥2,010,000); Fiscal Year 2008: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2007: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2006: ¥7,800,000 (Direct Cost: ¥7,800,000)
• Keywords: 超伝導集積回路 / 単一磁束量子 / ナノデバイス / ジョセフソン素子 / 超高速論理回路 / SFQ / インダクタンス / 位相量子

Research Abstract

超伝導体中の量子化された磁束を情報担体とする単一磁束量子論理回路は、高速性、低消費電力性に優れるが、超伝導インダクタンスを用いるためゲートサイズの微細化が制限される。これに対して本研究で提案する位相量子論理回路は、ジョセフソン接合の位相差を用いて磁束を保持するため、原理的にナノメータ寸法の論理ゲートを実現できる。本研究では、ナノスケール集積化が可能な位相量子論理回路の原理実証と設計方法論の確立を行ない、試作を通して本回路の基本特性を明らかにした。

Research Products

• [Journal Article] Novel serial-parallel converter using SFQ logic circuits (2008)
  • Author(s): H. Park, Y. Yamanashi, K. Taketomi, N. Yoshikawa, A. Fujimaki, N. Takagi
  • Journal Title: Physica C vol.468 Pages: 1977-1982
  • Peer Reviewed
• [Journal Article] Direct measurements of propagation delay of single-flux-quantum circuits by time-to-digital converters (2008)
  • Author(s): K. Nakamiya, N. Yoshikawa, A. Fujimaki, H. Terai, Y. Hashimoto
  • Journal Title: IEICE Electronics Express Vol.5 No.9 Pages: 332-337
  • NAID: 130000087191
  • Peer Reviewed
• [Journal Article] Direct measurements of propagation delay of single-flux-quantum circuits by time-to-digital converters (2008)
  • Author(s): K. Nakamiya
  • Journal Title: IEICE Electronics Express 5 Pages: 332-337
  • Peer Reviewed
• [Journal Article] Novel serial-parallel converter using SFQ logic circuits (2008)
  • Author(s): H. Park
  • Journal Title: Physica C 468 Pages: 1977-1982
  • Peer Reviewed
• [Journal Article] Design and Implementation of a Fully Asynchronous SFQ Microprocessor : SCRAM2 (2007)
  • Author(s): Y. Nobumori, T. Nishigai, K. Nakamiya, N. Yoshikawa, A. Fujimaki, H. Terai, S. Yorozu
  • Journal Title: IEEE Trans. Applied Superconductivity vol. 17 Pages: 478-481
  • Peer Reviewed
• [Journal Article] Bit-Error-Rate Measurements of RSFQ Shift Register Memories (2007)
  • Author(s): T. Hikida, K. Fujiwara, N. Yoshikawa, A. Fujimaki, H. Terai, S. Yorozu
  • Journal Title: IEEE Trans. Applied Superconductivity vol. 17 Pages: 512-515
  • Peer Reviewed
• [Journal Article] Study of LR-Loading Technique for Low-Power Single Flux Quantum Circuits (2007)
  • Author(s): Y. Yamanashi, T. Nishigai, N. Yoshikawa
  • Journal Title: IEEE Trans.Applied Superconductivity vol. 17 Pages: 150-153
  • Peer Reviewed
• [Journal Article] Study of LR-Loading Technique for Low-Power Single Flux Quantum Circuits (2007)
  • Author(s): Y. Yamanashi
  • Journal Title: IEEE Trans. Applied Superconductivity 17 Pages: 150-153
  • Peer Reviewed
• [Journal Article] Bit-Error-Rate Measurements of RSFQ Shift Register Memories (2007)
  • Author(s): T. Hikida
  • Journal Title: IEEE Trans. Applied Superconductivity 17 Pages: 512-515
  • Peer Reviewed
• [Journal Article] Design and Implementation of a Fully Asynchronous SFQ Microprocessor: SCRAM2 (2007)
  • Author(s): Y. Nobumori
  • Journal Title: IEEE Trans. Applied Superconductivity 17 Pages: 478-481
  • Peer Reviewed
• [Journal Article] On-chip microwave generator for manipulation of superconductive quantum bits (2006)
  • Author(s): Y. Yamanashi, T. Asano, N. Yoshikawa
  • Journal Title: Physica C vol.445-448 Pages: 967-970
  • Peer Reviewed
• [Journal Article] Design and implementation of low-power SFQ circuits using LR-load biasing technique (2006)
  • Author(s): T. Nishigai, S. Yamada, N. Yoshikawa
  • Journal Title: Physica C vol. 445-448 Pages: 1029-1033
  • Peer Reviewed
• [Journal Article] Design and imnplementation of low-power SFQ circuits using LR-load biasing technique (2006)
  • Author(s): T.Nishigai, S.Yamada, N.Yoshikawa
  • Journal Title: Physica C 445-448 Pages: 1029-1033
• [Journal Article] Signal integrity in large-scale single-flux-quantum circuit (2006)
  • Author(s): H.Terai, S.Yorozu, A.Fujimaki, N.Yoshikawa, Z.Wang
  • Journal Title: Physica C 445-448 Pages: 1003-1007
• [Journal Article] 40-GHz operation of a single-flux-quantum (SFQ) 4 x 4 switch scheduler (2006)
  • Author(s): Y.Kameda, S.Yorozu, Y.Hashimoto, H.Terai, A.Fujimaki, N.Yoshikawa
  • Journal Title: Physica C 445-448 Pages: 1008-1013
• [Journal Article] On-chip microwave generator for manipulation of superconductive quantum bits (2006)
  • Author(s): Y.Yamanashi, T.Asano, N.Yoshikawa
  • Journal Title: Physica C 445-448 Pages: 967-970
• [Journal Article] Single-flux-quantum integer multiplier with systolic array structure (2006)
  • Author(s): K.Obata, M.Tanaka, Y.Tashiro, Y.Kamiya, N.Irie, K.Takagi, N.Takagi, A.Fujimaki, N.Yoshikawa, H.Terai, S.Yorozu
  • Journal Title: Physica C 445-448 Pages: 1014-1019
• [Presentation] ジョセフソンインダクタンスを用いたSFQ論理回路の集積化の検討 (2009)
  • Author(s): 夏目侑紀
  • Organizer: 電子情報通信学会超伝導エレクトロニクス研究会
  • Place of Presentation: 東京
• [Presentation] 位相量子論理回路によるSFQ シフトレジスタメモリの高密度化 (2008)
  • Author(s): 夏目侑紀, 五十嵐正憲, 中禮浩二, 吉川信行
  • Organizer: 2008 年春季第55 回応用物理学関係連合講演会
  • Place of Presentation: 日本大学理工学部(28p-NA-9)
  • Year and Date: 2008-03-28
• [Presentation] High Density Integration of SFQ Shift Register Memories using Phase Quantum Logic Circuits (2008)
  • Author(s): Y. Natsume, M. Igarashi, K. Churei, N. Yoshikawa
  • Organizer: Superconducting SFQ VLSI Workshop 2008
  • Place of Presentation: Yokohama National University, Japan
  • Year and Date: 2008-03-17
• [Presentation] High Density Integration of SFQ Shift Register Memories using Phase Quantum Logic Circuits (2008)
  • Author(s): Y. Natsume
  • Organizer: Superconducting SFQ VLSI Workshop 2008
  • Place of Presentation: Yokohama National Univ.
  • Year and Date: 2008-03-17
• [Presentation] High-density integration of single-flux-quantum circuits using Josephson inductance (2008)
  • Author(s): Y. Natume, M. Igarashi, Y. Yamanashi, N. Yoshikawa
  • Organizer: Abstracts on 21th International Symposium on Superconductivity (ISS2008)
  • Place of Presentation: Tsukuba(FDP-21)
• [Presentation] High-density integration of single-flux-quantum circuits using Josephson inductance (2008)
  • Author(s): Y. Natume
  • Organizer: 21th International Symposium on Superconductivity (ISS2008)
  • Place of Presentation: Tsukuba
• [Presentation] 位相量子論理回路によるSFQシフトレジスタメモリの高密度化 (2008)
  • Author(s): 夏目侑紀
  • Organizer: 2008年春季第55回応用物理学関係連合講演会
  • Place of Presentation: 日本大学理工学部
• [Remarks]
  • URL: http://www.yoshilab.dnj.ynu.ac.jp/jpn/index.html
• [Remarks]
  • URL: http://www.yoshilab.dnj.ynu.ac.jp
• [Remarks]
  • URL: http://www.yoshilab.dnj.ynu.ac.jp/jpn/index.html