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Appl. Sci. 2018, 8(2), 236;

Repeater Insertion for Multi-Walled Carbon Nanotube Interconnects

Key Lab of RF Circuits and Systems of Ministry of Education, School of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
School of Microelectronics, Xidian University, Xi’an 710071, China
Authors to whom correspondence should be addressed.
Received: 17 December 2017 / Revised: 20 January 2018 / Accepted: 1 February 2018 / Published: 4 February 2018
(This article belongs to the Special Issue Carbon Nanotubes for Interconnects)
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Closed-form expressions for the optimized number and size of repeaters in multi-walled carbon nanotube (MWCNT) interconnects are presented. The contact resistance and inductive effects are taken into account. It is found that the propagation delay of MWCNT interconnects can be reduced effectively by inserting repeaters. However, the contact resistance has a significant influence on the optimized number and size of repeaters. Moreover, it is found that both the optimal number of repeaters and the minimum propagation delay are kept almost unchanged with the variation of carbon nanotube (CNT) kinetic inductance. The optimal number of repeaters in the MWCNT interconnect is much smaller than that in its Cu counterpart, thus saving chip area and power consumption. View Full-Text
Keywords: contact resistance; delay; interconnect; repeater insertion; multi-walled carbon nanotube contact resistance; delay; interconnect; repeater insertion; multi-walled carbon nanotube

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Liu, P.-W.; Cheng, Z.-H.; Zhao, W.-S.; Lu, Q.; Zhu, Z.; Wang, G. Repeater Insertion for Multi-Walled Carbon Nanotube Interconnects. Appl. Sci. 2018, 8, 236.

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