Margin and Yield Optimization of Single Flux Quantum Logic Cells Using Swarm Optimization Techniques

Karamuftuoglu, Mustafa Altay; Shahsavani, Soheil Nazar; Pedram, Massoud

doi:10.1109/tasc.2022.3223883

Cited by 6 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 6 demonstrates the optimization result of an FPL JTL cell. The optimization was done by an opensource qCS tool [29], which uses the particle swarm optimization method. Here, there are four JJs and a bias current value.…”

Section: Wiring Cells 321 Josephson Transmission Line (Jtl)mentioning

confidence: 99%

See 1 more Smart Citation

High-density superconductive logic circuits utilizing 0 and π josephson junctions

Razmkhah,

Pedram

2024

Eng. Res. Express

Self Cite

View full text Add to dashboard Cite

Superconductor Electronics (SCE) is a fast and power-efficient technology with great potential for overcoming conventional CMOS electronics' scaling limits. Nevertheless, the primary challenge confronting SCE today is its integration level, which lags several orders of magnitude behind CMOS circuits. In this study, we have innovated and simulated a novel logic family grounded in the principles of phase shifts occurring in 0 and π Josephson junctions. The fast phase logic (FPL) eliminates the need for large inductor loops and shunt resistances by combining the half-flux and phase logic. Therefore, the Josephson junction (JJ) area only limits the integration density. The cells designed with this paradigm are fast, and the clock-to-Q delay for logic cells is about 4ps. While maintaining over 50% parameter margins for wiring cells. This logic is power efficient and can increase the integration by at least 100 times in the SCE chips.

show abstract

Section: Wiring Cells 321 Josephson Transmission Line (Jtl)mentioning

confidence: 99%

“…The diverse range of cells provided caters to the fundamental needs of various computing systems. The functionality of these cells is verified using the JoSIM [28] simulator, while optimization using the qCS tool [29] yields satisfactory margins. The paper presents critical circuit parameters for FPL cells.…”

Section: Introductionmentioning

confidence: 99%