Electrothermal modeling of Multilayer Graphene Nanoribbon (MLGNR) Interconnect considering Energy-per-Layer Screening

An explicitly precise energy-per-layer screened electrothermal interconnect model has been developed in this paper that contemplates the impact of Fermi screening (FSc) with temperature for different intercalation doped top contact multilayer graphene nanoribbon (TC-MLGNR). Moreover, a comparative investigation is carried out to examine the impact of temperature upon the resistance of the effective number of layers
$(R_{\mathrm{L}_{-}\text{efct}})$
participating in current conduction. It has been observed that the thermal response considering FSc is different for each layer. Moreover, with FSc, the rate of change of resistance with temperature is different for different intercalated TC-MLGNR. The finite difference between effective resistance considering with
$(R_{\text{efct}_{-}\text{Efs}})$
and without
$(R_{\text{efct}_{-}\mathrm{E}\mathrm{f}})$
FSc shows linear distribution over the chip operating temperature range, which supposedly put forth a significant footprint on the existing self-heating models. Hence, it is pertinent that by incorporating FSc, our proposed model, flow through the electrothermal design of GNR interconnects in upcoming VLSI circuits.