Accurate Margin Calculation for Single Flux Quantum Logic Cells

Soheil Nazar Shahsavania, Bo Zhangb and Massoud Pedramc
University of Southern California
anazarsha@usc.edu
bzhan254@usc.edu
cpedram@usc.edu

ABSTRACT


This paper presents a novel method for accurate margin calculation of single flux quantum (SFQ) logic cells in a superconducting electronic circuit. The proposed method can be utilized as a figure of merit to estimate the robustness of a logic cell without the need for expensive Monte‐Carlo simulations. This is achieved through efficient state‐space exploration of all parameters in the cell structure. Using the proposed approach, distinct parameter dispersion (DPD) based yield of SFQ cells increases by 55% on average, compared with state‐of‐the-art techniques.



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