Postrouting Optimization of the Working Clock Frequency of Single-Flux-Quantum Circuits

With the emergence of large-scale single-flux-quantum (SFQ) circuits, it is desirable to offload heavy routing tasks to automated electronic design automation (EDA) tools. The unique characteristic of SFQ circuits is that large clock distribution networks are generally required to pass the clock signal to clocked cells subject to limited fanout drive capability of the intervening clock buffers. Th...