Automated Passive-Transmission-Line Routing Tool for Single-Flux-Quantum Circuits Based on A* Algorithm
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概要
- 論文の詳細を見る
We demonstrated an automated passive-transmission-line routing tool for single-flux-quantum (SFQ) circuits. The tool is based on the A* algorithm, which is widely used in CMOS LSI design, and tuned for microstrip/strip lines formed in the SRL 4-Nb layer structure. In large-scale SFQ circuits with 10000-20000 Josephson junctions, such as microprocessors, 80-90% of the wires can be automatically routed in about ten minutes. We verified correct operation above 40GHz for an automatically routed 4 × 4 switch circuit from on-chip high-speed tests. The resulting circuit size and operating frequency were comparable to those of a manually designed result. We believe that the tool is useful for large-scale SFQ circuit design using conventional fabrication processes.
- （社）電子情報通信学会の論文
著者
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ITO Yuki
Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine
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Fujimaki Akira
Department Of Quantum Engineering Nagoya University
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Obata Koji
Department of Phamacology, Achigakuin University School of Dentistry
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Takagi Kazuyoshi
Department Of Surgery Kurume University School Of Medicine
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Takagi Kazuyoshi
Department Of Information Engineering Nagoya University
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AKAIKE Hiroyuki
Department of Electronics, Nagoya University
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SATO Motoki
Department of Cardiovascular Surgery, The Heart Institute of Japan, Tokyo Women's Medical University
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TANAKA Masamitsu
Department of Information Engineering, Nagoya University
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TAKESHIMA Shota
Department of Information Engineering, Nagoya University
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TAKAGI Naofumi
Department of Information Engineering, Nagoya University
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