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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2005.1
- 수록면
- 36 - 40 (5page)
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초록· 키워드
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The problem of fluctuation-induced digital errors in a rapid single flux quantum (RSFQ) circuit has been a very important issue. In this work, we calculated the bit error rate of an RSFQ switch used in superconductive arithmetic logic unit (ALU). RSFQ switch should have a very low error rate in the optimal bias. Theoretical estimates of the RSFQ error rate are on the order of $10^{-50}$ per bit operation. In this experiment, we prepared two identical circuits placed in parallel. Each circuit was composed of 10 Josephson transmission lines (JTLs) connected in series with an RSFQ switch placed in the middle of the 10 JTLs. We used a splitter to feed the same input signal to both circuits. The outputs of the two circuits were compared with an RSFQ exclusive OR (XOR) to measure the bit error rate of the RSFQ switch. By using a computerized bit-error-rate test setup, we measured the bit error rate of $2.18{\times}10^{-12}$ when the bias to the RSFQ switch was 0.398 mA that was quite off from the optimum bias of 0.6 mA.
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Issues in Building Large RSFQ Circuits
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Simulation Study of RSFQ OR-gates and Their Layouts for Nb Process
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RSFQ 1-bit ALU의 디자인과 시뮬레이션
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Development of an RSFQ 4-bit ALU
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Designs and Measurements of an RSFQ DFFC Circuit and an RSFQ Inverter Circuit
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Development of Superconductive Arithmetic and Logic Devices
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RSFQ 회로 제작용 SINIS 조셉슨 접합기술
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