International Conf. of 2020

(1) "A. Fujimaki, M. Tanaka, N. Yoshikawa, ''(Invited) Challenges to Thermal Limit, Quantum Limit, and High Throughput Based on SFQ Circuits,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, I-3."

(2) "H. Terai, M. Yabuno, S. Miyajima, S. Miki, F. China,?N. Takeuchi, N. Yoshikawa, ''(Invited) A Large-Scale SSPD Imaging Array with Row-Column Multiplexing and SFQ Digital Signal Processor,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, I-9."

(3) "N. Takeuchi, C. L. Ayala, O. Chen, Y. He, N. Yoshikawa, ''(Invited) Adiabatic Quantum-Flux-Parametron: Recent Progress and Applications,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, I-12."

(4) "F. Ke, A. Ren, Y. Wang, O. Chen, Y. Yamanashi, N. Yoshikawa, ''Design of SFQ Convolutional Computation Processor for Convolutional Neural Network,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-3."

(5) "Z. Li, Y. Yamanashi, N. Yoshikawa, ''Design and Simulation of Single-Flux-Quantum Multiply-Accumulator,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-4."

(6) "L. Shirakawa, Y. Yamanashi, N. Yoshikawa, ''Design and Evaluation of Superconducting 2-bit Autocorrelator System for Astronomical Data Analysis,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-5."

(7) "K. Akizuki, Y. Yamanashi, N. Yoshikawa, ''Demonstration of an SFQ 8-symbol Complex Event Detector Corresponding to Regular Expressions,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-8."

(8) "Y. Kobara, Y. Yamanashi, N. Yoshikawa, ''Investigation of Dual-Rail Single-Flux-Quantum Circuit Using π Josephson Junction,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-12."

(9) "S. Asada, Y. Yamanashi, N. Yoshikawa, ''Design and Evaluation of Single Flux Quantum Circuits by Using Local Magnetic Flux Bias Technique,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-13."

(10) "T. Hosoya, Y. Yamanashi, N. Yoshikawa , ''Design of Single Flux Quantum Highly-Integrated Memory Cell and Its Application to Lookup Table,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-14."

(11) "S. Michibayashi, N. Takeuchi, Y. Yamanashi, N. Yoshikawa, ''Energy Efficient Microwave Switch using Single-Flux-Quantum Circuits with Controllable Microwave Power,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-17."

(12) "Y. Hironaka, Y. Yamanashi, N. Yoshikawa, ''Optimization of a Josephson Latching Driver using 10-kA/cm2 Nb Process for a Josephson-CMOS Hybrid Memory,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-18."

(13) "Y. Okamoto, Y. Hironaka, N. Yoshikawa, ''Design of an adiabatic CMOS decoder for Josephson-CMOS hybrid memories,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-20."

(14) "T. Tamura, N. Takeuchi, C. Ayala, Y. Yamanashi, N. Yoshikawa, ''Design and Evaluation of a 32-word by 8-bit Register File using Adiabatic Quantum Flux Parametron Logic,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-21."

(15) "T. Yamae, N. Takeuchi, N. Yoshikawa, ''Design and Demonstration of a 2-input Multiplexer using Reversible Quantum-Flux-Parametron Logic,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-22."

(16) "R. Ishida, N. Takeuchi, T. Yamae, N. Yoshikawa, ''Parameter Optimization of Directly Coupled Quantum Flux Parametron Circuits,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-23."

(17) "W. Luo, N. Takeuchi, O. Chen, N. Yoshikawa, ''Design and Evaluation of a 1-bit Random Number Generator using Adiabatic Quantum-Flux-Parametron Logic,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-24."

(18) "Y. Yamazaki, N. Takeuchi, N. Yoshikawa, ''Design and Evaluation of Interfaces between Adiabatic Quantum Flux Parametron Circuits and Rapid Single Flux Quantum Circuits,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-25."

(19) "T. Yamada, C. L. Ayala, R. Saito, T. Tanaka, N. Yoshikawa, ''Investigation of Placement Order Optimization for Adiabatic Quantum-Flux-Parametron Integrated Circuits via Machine Learning,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-26."

(20) "Y. Tsuna, Y. Yamanashi, N. Yoshikawa, ''Analysis of the Influence of 1/f Noise on the Operational Stability of Quantum Flux Parametron Circuit,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-27."

(21) "D. Ito, N. Takeuchi, Y. Yamanashi, N. Yoshikawa, ''Simulation and Experimental Evaluation of Bit Error Rates of Adiabatic Quantum Flux Parametron Circuits Including Thermal Noises,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-28."

(22) "R. Saito, C. L. Ayala, O. Chen, T. Tanaka, T. Tamura, N. Yoshikawa, ''Methodology for Automating Data Feedback Circuit Synthesis for a 4-bit Counter in Adiabatic Quantum-Flux-Parametron Logic,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-29."

(23) "K. Miyake, Y. Yamanashi, N. Yoshikawa, ''Investigation of Logic Gate using Bi-directionally-Coupled Quantum Flux Parametron Array,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-30."

(24) "D. Yamaguchi, Y. Yamanashi, N. Yoshikawa, ''Investigation of Neuron with Sigmoid Activation Function for Quantum-Flux-Parametron-Based Neural Network,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-31."

(25) "H. He, Y. Yamanashi, N. Yoshikawa, ''Investigation of Variable Coupler of Quantum Annealing Machine Coupler by Using DC-SQUID,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, P-32."

(26) "T. Tanaka, C. L. Ayala, O. Chen, R. Saito, N. Yoshikawa, ''Measurement Result of Adiabatic Quantum Flux Parametron 16-bit Kogge Stone Adder Circuit,'' 13th Superconducting SFQ VLSI Workshop (SSV 2020), Yokohama, Japan, January 16-17, 2020, O-1."

(27) "Y. He, Z. Ma and N. Yoshikawa, ''Direct Synthesis Technique of Quasi-Canonical Filters Comprising Cascaded Frequency-Variant Blocks,'' 2020 IEEE/MTT-S International Microwave Symposium (IMS), Los Angeles, CA, USA, 2020, pp. 436-439, doi: 10.1109/IMS30576.2020.9224065."

(28) "C. L. Ayala, T. Tanaka, R. Saito, M. Nozoe, N. Takeuchi and N. Yoshikawa, ''MANA: A Monolithic Adiabatic iNtegration Architecture Microprocessor using 1.4zJ/op Superconductor Josephson Junction Devices,'' 2020 IEEE Symposium on VLSI Circuits, Honolulu, HI, USA, 2020, pp. 1-2, doi: 10.1109/VLSICircuits18222.2020.9162792."

(29) "N. Yoshikawa, ''(Invited) Energy-Efficient Superconductor Digital Circuit Technology for High-Performance Computing,'' 29th International Workshop on Logic and Synthesis (IWLS), Online, July 27-30, 2020."

(30) "N. Yoshikawa, ''(Plenary) Reversible Quantum-Flux-Parametron,'' Workshop on Physics & Engineering Issues in Adiabatic/Reversible Classical Computing, Online, October 5-9, 2020."

(31) "Christopher L. Ayala, Ro Saito, Tomoyuki Tanaka, Tomohiro Tamura, Naoki Takeuchi, Nobuyuki Yoshikawa, ''(Invited) A 4-bit RISC-dataflow AQFP MANA microprocessor: architecture, design challenges and demonstration,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EOr1B-01."

(32) "Taiki Yamae, Naoki Takeuchi, Nobuyuki Yoshikawa, ''Study and demonstration of a high-sensitivity adiabatic quantum-flux-parametron with an input transformer,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EOr1B-04."

(33) "Wenhui Luo, Naoki Takeuchi, Olivia Chen, Nobuyuki Yoshikawa, ''Low-autocorrelation random number generator using adiabatic quantum-flux-parametron logic,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EOr1B-05."

(34) "Yuxing He, Olivia Chen, Nobuyuki Yoshikawa, ''Low Latency Adiabatic Quantum-Flux-Parametron 3-to-8 Decoder Excited by Microwave Power Dividers,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EOr1B-06."

(35) "Ro Saito, Christopher L. Ayala, Olivia Chen, Tomoyuki Tanaka, Tomohiro Tamura, Nobuyuki Yoshikawa, ''Study of clock synchronization for high-level synthesis of adiabatic quantum-flux-parametron sequential logic circuits,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EPo1C-02."

(36) "D Scott Holmes, Erik DeBenedictis, Robert L. Fagaly, Pascal Febvre, Coenrad J. Fourie, Deepnarayan Gupta, Anna Herr, Anna Leese de Escobar, Nancy Missert, Oleg A. Mukhanov , Britton Plourde, Satyavolu Papa Rao, Nobuyuki Yoshikawa, ''(Invited) Superconductor Electronics Technology Roadmap for IRDS 2020,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EOr2C-01."

(37) "Takuya Hosoya, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Design of high-density single flux quantum lookup table composed of memory cells reconfigured by external dc control currents,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EOr2B-05."

(38) "Yuichi Yamazaki, Naoki Takeuchi, Nobuyuki Yoshikawa, ''Design and demonstration of compact interfaces between adiabatic quantum-flux-parametron logic and rapid single-flux-quantum logic,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EPo2B-03."

(39) "Olivia Chen, Wenhui Luo, Yanzhi Wang, Naoki Takeuchi, Nobuyuki Yoshikawa, ''An AQFP-Based Neural Network Accelerator with On-Chip Stochastic Number Generation,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EPo2B-04."

(40) "Lisa Shirakawa, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Design and evaluation of 2-bit-input single-flux-quantum autocorrelator system for astronomical data analysis,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EPo3B-05."

(41) "Zongyuan Li, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Design of single flux quantum multiplier-accumulator utilizing integrator as both partial-product addition and accumulation of multiplication,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk1EPo3B-07."

(42) "Shunta Asada, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Implementation of energy- and area- efficient single flux quantum circuit by introducing local magnetic flux bias technique,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EOr1B-02."

(43) "Yuki Hironaka, Yuxing He, Christopher L. Ayala, Naoki Takeuchi, Taiki Yamae, Sukanya Sagarika Meher, Amol Inamdar, Deepnarayan Gupta, Nobuyuki Yoshikawa, ''Demonstration of Interfaces Between Adiabatic Quantum-Flux-Parametron and Rapid Single-Flux-Quantum Circuits Using the MIT-LL SFQ5ee Process,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EOr1B-03."

(44) "Naoki Takeuchi, Taiki Yamae, Nobuyuki Yoshikawa, ''A reversible 8-bit adder using adiabatic quantum-flux-parametron logic,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EOr2A-04."

(45) "Taiki Yamae, Naoki Takeuchi, Nobuyuki Yoshikawa, ''Design and demonstration of an 8-word by 1-bit reversible quantum-flux-parametron register file,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EOr2A-05."

(46) "Naoki Takeuchi, Hideo Suzuki, Coenrad J. Fourie, Nobuyuki Yoshikawa, ''Impedance design of excitation lines in adiabatic quantum-flux-parametron logic using InductEx,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EOr2C-07."

(47) "Fei Ke, Olivia Chen, Yanzhi Wang, Nobuyuki Yoshikawa, ''Implementation of an FFT-Based Convolutional Neural Network Accelerator Using Single-Flux-Quantum Technology,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EOr3B-01."

(48) "Daiki Ito, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa, ''(Invited) Bit-error-rate-based optimization of gate-to-gate wire length for adiabatic quantum flux parametron logic,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EPo2B-01."

(49) "Ryohei Ishida, Naoki Takeuchi, Taiki Yamae, Nobuyuki Yoshikawa, ''Design and demonstration of directly-coupled quantum-flux-parametron circuits with optimized circuit parameters,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EPo2B-02."

(50) "Shiori Michibayashi, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Power-controllable microwave switch using single-flux-quantum circuits,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EPo2C-03."

(51) "Yuki Yamanashi, Yusuke Tsuna, Nobuyuki Yoshikawa, ''Experimental evaluation of gray zone width of quantum flux parametron implemented by circuit fabrication processes with different critical current density,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EPo2B-04."

(52) "Yoshihiro Takagawa, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Design and demonstration of a phase comparator using adiabatic quantum-flux-parametron logic,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EPo2C-04."

(53) "Tomoyuki Tanaka, Christopher L. Ayala, Nobuyuki Yoshikawa, ''A 16-bit parallel prefix carry look-ahead Kogge-Stone adder implemented in adiabatic quantum-flux-parametron logic,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EOr4B-02."

(54) "Yuki Hironaka, Thomas Ortlepp, Yuki Yamanashi, Nobuyuki Yoshikawa, ''High-speed demonstration of a single-flux-quantum microprocessor operating with a Josephson-CMOS hybrid memory,'' Applied Superconductivity Conference (ASC2020), Online, October 23-November 7, 2020, Wk2EOr4B-03."

(55) "Ro Saito, Christopher L. Ayala, Nobuyuki Yoshikawa, ''N-Phase Clocking Methodology for Adiabatic Quantum-Flux-Parametron Logic,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED3-3."

(56) "Takehisa Yamada, Tomoyuki Tanaka, Ro Saito, Christopher Lawrence. Ayala, Nobuyuki Yoshikawa, ''Development of a Generic Two-Layer Channel Routing Algorithm for Adiabatic Quantum-Flux-Parametron Logic Using Advanced Fabrication Process,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED3-5."

(57) "Kazuhito Asai, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Investigation of transmission line effects in gate-to-gate wiring of adiabatic quantum-flux-parametron circuits,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED3-7."

(58) "Coenrad J Fourie, Naoki Takeuchi, Kyle Jackman, Nobuyuki Yoshikawa, ''Evaluation of flux trapping moat position on AQFP cell performance,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED4-2."

(59) "Christopher Lawrence Ayala, Naoki Takeuchi, Nobuyuki Yoshikawa, ''16-bit Adiabatic Quantum-Flux-Parametron SerDes Components,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED4-4."

(60) "Naoya Mizushima, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Proposal of Current Boosters for Adiabatic Quantum-Flux-Parametron Logic,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED4-5."

(61) "Shunsuke Ikedo, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Investigation and measurement of narrow passive transmission lines for single flux quantum circuits,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED4-6."

(62) "Daiki Yamaguchi, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Demonstration of neurons with sigmoidal activation functions for superconducting neural networks,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED4-7."

(63) "Hongxiang Shen, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa, ''Design of a timing controller for a superconductor microwave switch using adiabatic quantum flux parametron circuits,'' The 33rd International Symposium on Superconductivity (ISS2020), Tsukuba, Japan, December 1-3, 2020, ED6-6."

(64) "N. Yoshikawa, ''(Invited) Present status and perspective of energy-efficient superconductor integrated circuit technologies,'' Future Chips Forum 2020 at Tsinghua University December 17-18, 2020, online."

Other Years