Circuit model and transfer matrix model of mixed multiwall carbon nanotube interconnects-

Document Type : Power Article

Authors

1 Faculty of Electrical, Biomedical and Mechatronics Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran

2 department of electrical engineering, tarbiat modares unversity

3 department of electrical engineering, sharif unversity of technology

Abstract

Using multi transmission line (MTL) model, a compact circuit model for mixed multiwall carbon nanotube (MMWCNT) interconnects is proposed. Using the proposed circuit model, an algorithmic model is proposed for calculating the transfer matrix of these interconnects. In the proposed circuit model and also algorithmic model, capacitive, inductive and tunneling effects between the carbon layers is considered. Moreover the concept of distributed circuit block parameters is proposed for this type of interconnects. This model is compact because it can be used in wide range and technology of interconnects. Also using this model, any change in the physical parameters of the nanotubes can be considered in the circuit model and algorithmic model. Using the circuit model and algorithmic model one can calculate various stability and time domain responses for MMWCNT interconnects in VLSI circuits. In this paper after proposing the circuit model and algorithmic model, we have calculated step time response and Nyquist response of MMWCNT interconnects. The results show that by increasing the length and diameter of the tubes, the delay of the interconnects is increased and its stability is increased too.

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References

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Journal of Modeling in Engineering
Volume 17, Issue 58
October 2019
Pages 113-126

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History

  • Receive Date: 19 September 2018
  • Revise Date: 17 March 2019
  • Accept Date: 10 April 2019

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