Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Yoshihito Hashimoto"'
Autor:
Motoki Imamura, Makoto Shinohara, Futoshi Watanabe, Kunio Takeuchi, Yoshihito Hashimoto, Masahito Shibata, Shigeki Nishina
Publikováno v:
SAE International Journal of Fuels and Lubricants. 5:343-351
Publikováno v:
IEEE Transactions on Applied Superconductivity. 19:649-652
An increase in bias currents supplied to single-flux-quantum (SFQ) circuits is a rising problem in building large-scale integrated SFQ circuits, because the magnetic fields generated by bias currents and ground return currents affect the circuit oper
Publikováno v:
IEICE Electronics Express. 5(9):332-337
Direct measurements of propagation delay of single-flux-quantum (SFQ) circuits were performed using SFQ double-oscillator time-to-digital converters. The propagation delay of several SFQ logic gates in our cell library named CONNECT were measured in
Publikováno v:
IEICE Transactions on Electronics. :325-332
A cryocooled system with I/O interface circuits, which enables high-speed system operation of superconductive single-flux-quantum (SFQ) circuits at over 40GHz, and the demonstration of a 47-Gbps SFQ 2×2 switch system are presented. The cryocooled sy
Publikováno v:
Physica C: Superconductivity and its Applications. :1076-1079
We newly miniaturized single-flux-quantum (SFQ) switch circuits for realizing a large-scale switch. A problem in our conventional design is a large size of circuits, because they consist of combine primitive-function logic cells , such as AND, NOT, a
Publikováno v:
IEEE Transactions on Applied Superconductivity. 17:508-511
The introduction of passive-transmission-line (PTL) wiring to large-scale SFQ logic circuits offers several advantages over traditional Josephson-transmission-line (JTL) wiring, such as smaller wiring area, less delay, lower power consumption, and mo
Autor:
Toshiyuki Miyazaki, Yoshihito Hashimoto, H.. Suzuki, Yoshio Kameda, Shinichi Yorozu, Nobuyuki Yoshikawa
Publikováno v:
IEEE Transactions on Applied Superconductivity. 17:546-551
We report on development of a cryocooled system prototype for high-throughput single flux quantum (SFQ) digital applications. The system was designed to have 32 I/O links with a bandwidth of 10 Gbps/port. An SFQ multi-chip module (MCM), double mu-met
Autor:
Masamitsu Tanaka, Wang Zhen, Nobuyuki Yoshikawa, Akira Fujimaki, Yuki Yamanashi, Yoshihito Hashimoto, Hirotaka Terai
Publikováno v:
IEEE transactions on applied superconductivity. 17(2, Part 1):422-425
We diagnosed circuits to identify of margin reduction mechanisms in large-scale SFQ circuits. Two types of shift registers with partial or full bias line shields were designed and tested. We investigated the locations' and origins of circuit errors b
Autor:
Yoshihito Hashimoto, Yoshio Kameda, Tetsuro Satoh, Shinichi Yorozu, K. Hinode, Mutsuo Hidaka, Shuichi Nagasawa
Publikováno v:
Physica C: Superconductivity and its Applications. :941-945
We have developed a method for evaluating Ic (critical current) spreading and yield of Nb Josephson junctions (JJ) through detailed current–voltage (I–V) measurements and applied the method to evaluation of 1000 serial arrays. Digitizing the step
Publikováno v:
Journal of Physics: Conference Series. 43:1179-1182
Single-flux-quantum (SFQ) logic circuits provide faster operations with lower power consumption, using Josephson junctions as the switching devices. In the top-down flow of SFQ circuit design, we have already developed a place-and-route tool that cov