Presentation 2004/5/13
Design and Demonstration of a Microprocessor Using Single-Flux-Quantum Logic
Masamitsu TANAKA, Akira FUJIMAKI, Toshiaki KONDO, Tomohiro KAWAMOTO, Yoshiaki Kamiya, Hisao HAYAKAWA, Aya AKIMOTO, Yuki YAMANASHI, Naoki NAKAJIMA, Kan Fujiwara, Nobuyuki YOSHIKAWA, Hirotaka TERAI, Shinichi TOROZU,
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Abstract(in English) We have succeeded in demonstrating 8-bit microprocessors using single-flux-quantum (SFQ) logic with superconductive devices. In the SFQ logic, a single flux quantum in a superconducting ring corresponds to an information bit. The SFQ logic circuit is a strong candidate for future LSIs because it enables us to realize logic gates operating over ten times higher and consuming less than 1/1000 power compared with semiconductor devices. Here we have developed the design methodologies to control single flux quanta in pico-second timescale, and designed a prototype chip integrating about 5000 superconductive devices on a 5 mm square area. The prototype chip have operated successfully up to 15.2 GHz clock and consumed 1.6 mW. We have also demonstrated a microprocessor using passive transmission lines toward mounting a memory. The microprocessor, made up of about 6300 devices, has worked correctly up to 17.9 GHz clock with power consumption of 1.9 mW.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Superconductive Device / Single-Flux-Quantum Logic / SFQ / Microprocessor
Paper # ICD2004-14
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Committee ICD
Conference Date 2004/5/13(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Design and Demonstration of a Microprocessor Using Single-Flux-Quantum Logic
Sub Title (in English)
Keyword(1) Superconductive Device
Keyword(2) Single-Flux-Quantum Logic
Keyword(3) SFQ
Keyword(4) Microprocessor
1st Author's Name Masamitsu TANAKA
1st Author's Affiliation Nagoya University()
2nd Author's Name Akira FUJIMAKI
2nd Author's Affiliation Nagoya University
3rd Author's Name Toshiaki KONDO
3rd Author's Affiliation Nagoya University
4th Author's Name Tomohiro KAWAMOTO
4th Author's Affiliation Nagoya University
5th Author's Name Yoshiaki Kamiya
5th Author's Affiliation Nagoya University
6th Author's Name Hisao HAYAKAWA
6th Author's Affiliation Nagoya University
7th Author's Name Aya AKIMOTO
7th Author's Affiliation Yokohama National University
8th Author's Name Yuki YAMANASHI
8th Author's Affiliation Yokohama National University
9th Author's Name Naoki NAKAJIMA
9th Author's Affiliation Yokohama National University
10th Author's Name Kan Fujiwara
10th Author's Affiliation Yokohama National University
11th Author's Name Nobuyuki YOSHIKAWA
11th Author's Affiliation Yokohama National University
12th Author's Name Hirotaka TERAI
12th Author's Affiliation NICT
13th Author's Name Shinichi TOROZU
13th Author's Affiliation SRL-ISTEC
Date 2004/5/13
Paper # ICD2004-14
Volume (vol) vol.104
Number (no) 66
Page pp.pp.-
#Pages 6
Date of Issue