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Journal of Computational Electronics
Published in: Journal of Computational Electronics 3/2020

19-06-2020

RF analysis of intercalated graphene nanoribbon-based global-level interconnects

Authors: Manjit Kaur, Neena Gupta, Sanjeev Kumar, Balwinder Raj, Arun K. Singh

Published in: Journal of Computational Electronics | Issue 3/2020

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Abstract

Intercalation doping is emerging as a prospective solution to enhance the performance of graphene nanoribbon interconnects. In this paper, the radio frequency (RF) analysis of stage-2 arsenic pentafluoride- and lithium-doped multilayer graphene nanoribbons (MLGNRs) has been carried out for global-level interconnects in terms of skin depth, surface impedance, critical ratio (CR), transfer gain, and 3-dB bandwidth. The skin-depth results demonstrate that doped MLGNRs exhibit minimum performance degradation primarily due to their higher conductivity, mean free path, and momentum relaxation time as compared to neutral MLGNR. An equivalent second-order accurate RLC model of an intercalation-doped MLGNR has been used to extract the transfer gain and 3-dB bandwidth results at 14-nm technology node for global-level interconnects. The results are further evaluated by implementing an advanced π-type equivalent single conductor derived from multi-conductor transmission line model. The doped MLGNR interconnects demonstrate 11-fold enhancement of 3-dB bandwidth as compared to copper (Cu). Also, the delay and energy-delay-product (EDP) computations in time domain for doped MLGNR interconnects exhibit nearly 10 times lesser delay and significant reduction in EDP than Cu counterparts. It is also observed that optimum values for 3-dB bandwidth and EDP parameters for intercalated MLGNRs could be achieved through width optimization. The RF and transient results validate intercalated MLGNRs as a potential candidate to replace Cu for next-generation global-level interconnects.
previous article A variation-aware design for storage cells using Schottky-barrier-type GNRFETs
next article Lead position and lead-ring coupling effects on the spin-dependent transport properties in a two-dimensional network of quantum nanorings in the presence of Rashba spin–orbit interaction

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Metadata
Title
RF analysis of intercalated graphene nanoribbon-based global-level interconnects
Authors
Manjit Kaur
Neena Gupta
Sanjeev Kumar
Balwinder Raj
Arun K. Singh
Publication date
19-06-2020
Publisher
Springer US
Published in
Journal of Computational Electronics / Issue 3/2020
Print ISSN: 1569-8025
Electronic ISSN: 1572-8137
DOI
https://doi.org/10.1007/s10825-020-01530-5

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