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Published in:
2024 | OriginalPaper | Chapter
Efficient Optimization of SFQ-Based Logic Circuits: Introducing a Novel Methodology for Performance and Design Enhancement
Authors : Laura Di Marino, Francesco Fienga, Vincenzo Romano Marrazzo, Alessandro Borghese, Giovanni Breglio, Andrea Irace, Federico Vittorio Lupo, Oleg Mukhanov, Marco Arzeo, Michele Riccio
Published in: Applications in Electronics Pervading Industry, Environment and Society
Publisher: Springer Nature Switzerland
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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.