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CMOS-based carbon nanotube pass-transistor logic integrated circuits

Field-effect transistors based on carbon nanotubes have been shown to be faster and less energy consuming than their silicon counterparts. However, ensuring these advantages are maintained for integrated circuits is a challenge. Here we demonstrate that a significant reduction in the use of field-ef... Full description

Journal Title: Nature Communications 2012, Vol.3, p.677
Main Author: Li Ding
Other Authors: Zhiyong Zhang , Shibo Liang , Tian Pei , Sheng Wang , Yan Li , Weiwei Zhou , Jie Liu , Lian-Mao Peng
Format: Electronic Article Electronic Article
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ID: ISSN: 2041-1723 ; E-ISSN: 2041-1723 ; DOI: 10.1038/ncomms1682
Link: http://dx.doi.org/10.1038/ncomms1682
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recordid: nature_a10.1038/ncomms1682
title: CMOS-based carbon nanotube pass-transistor logic integrated circuits
format: Article
creator:
  • Li Ding
  • Zhiyong Zhang
  • Shibo Liang
  • Tian Pei
  • Sheng Wang
  • Yan Li
  • Weiwei Zhou
  • Jie Liu
  • Lian-Mao Peng
subjects:
  • Article
ispartof: Nature Communications, 2012, Vol.3, p.677
description: Field-effect transistors based on carbon nanotubes have been shown to be faster and less energy consuming than their silicon counterparts. However, ensuring these advantages are maintained for integrated circuits is a challenge. Here we demonstrate that a significant reduction in the use of field-effect transistors can be achieved by constructing carbon nanotube-based integrated circuits based on a pass-transistor logic configuration, rather than a complementary metal-oxide semiconductor configuration. Logic gates are constructed on individual carbon nanotubes via a doping-free approach and with a single power supply at voltages as low as 0.4 V. The pass-transistor logic configurarion provides a significant simplification of the carbon nanotube-based circuit design, a higher potential circuit speed and a significant reduction in power consumption. In particular, a full adder, which requires a total of 28 field-effect transistors to construct in the usual complementary metal-oxide semiconductor circuit, uses only three pairs of n- and p-field-effect transistors in the pass-transistor logic configuration. Field-effect transistors fabricated from carbon nanotubes have been investigated extensively over the past two decades. This study demonstrates a nanotube-based integrated circuit design that substantially improves the speed and power consumption with respect to silicon-based integrated circuits.
language:
source:
identifier: ISSN: 2041-1723 ; E-ISSN: 2041-1723 ; DOI: 10.1038/ncomms1682
fulltext: fulltext
issn:
  • 2041-1723
  • 20411723
url: Link


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descriptionField-effect transistors based on carbon nanotubes have been shown to be faster and less energy consuming than their silicon counterparts. However, ensuring these advantages are maintained for integrated circuits is a challenge. Here we demonstrate that a significant reduction in the use of field-effect transistors can be achieved by constructing carbon nanotube-based integrated circuits based on a pass-transistor logic configuration, rather than a complementary metal-oxide semiconductor configuration. Logic gates are constructed on individual carbon nanotubes via a doping-free approach and with a single power supply at voltages as low as 0.4 V. The pass-transistor logic configurarion provides a significant simplification of the carbon nanotube-based circuit design, a higher potential circuit speed and a significant reduction in power consumption. In particular, a full adder, which requires a total of 28 field-effect transistors to construct in the usual complementary metal-oxide semiconductor circuit, uses only three pairs of n- and p-field-effect transistors in the pass-transistor logic configuration. Field-effect transistors fabricated from carbon nanotubes have been investigated extensively over the past two decades. This study demonstrates a nanotube-based integrated circuit design that substantially improves the speed and power consumption with respect to silicon-based integrated circuits.
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