Abstract
Single-Flux-Quantum (SFQ) logic is a digital electronic technology known for its very low-power consumption (nW-µW) and high operating frequency (up to 100 GHz). Like any other device, SFQ-based logic circuits suffer from manufacturing process issues, specifically concerning variations in the determined values of individual components such as the critical current of a Josephson junction and inductances. This leads to the need for a deep understanding of the circuit performances, its tolerance range and, furthermore, an optimization tool to improve it achieving a certain margin for each component. In this regard, the present article delves into the techniques and the development of a new design parameter optimization algorithm, whose main goal is to increase the critical margin of the circuit. By using such a simple and efficient technique, failures due to the fabrication are avoided and performance enhancement is achieved.
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References
Paul Bunyk et al (2001), RSFQ technology: physics and devices. Int J High Speed Electron Syst 11(1):257–305
Likharev KK (1986) Dynamics of Josephson junctions and circuits. Gordon and Breach, New York
Fang ES et al. A Josephson integrated circuit simulator (JSIM) for superconductive electronics application. Ext Abstr 1989 Int Supercond Electron Conf ISEC 89:407–410, 198
Mori N et al (2001) A new optimization procedure for single flux quantum circuits. Phys C 357–360:1557–1560
Hietala K et al (2020) A verified optimizer for quantum circuits. arXiv:1912.02250v3
Van Duzer T et al (1981) Principles of superconducting circuits. Elsevier, New York
Likharev KK (1993) Rapid single-flux-quantum logic. In: Weinstock H, Ralston RW (eds) The new superconducting electronics. NATO ASI Series, vol 251. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1918-4_14
Semenov VK et al (1997) Digital-to-analog converter based on processing of SFQ pulses. Ext Abstr Int Supercond Electron Conf, PTB, Berlin, 320–322
Tinkham M (1996) Introduction to superconductivity, 2nd edn. McGraw-Hill, New York
Lagarias et al (1998) Convergence properties of the Nelder-Mead simplex method in low dimensions. SIAM J Opt 9(1):112–147
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Di Marino, L. et al. (2024). Efficient Optimization of SFQ-Based Logic Circuits: Introducing a Novel Methodology for Performance and Design Enhancement. In: Bellotti, F., et al. Applications in Electronics Pervading Industry, Environment and Society. ApplePies 2023. Lecture Notes in Electrical Engineering, vol 1110. Springer, Cham. https://doi.org/10.1007/978-3-031-48121-5_12
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DOI: https://doi.org/10.1007/978-3-031-48121-5_12
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