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CMOS-based carbon nanotube pass-transistor logic integrated circuits.


ABSTRACT: 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.

SUBMITTER: Ding L 

PROVIDER: S-EPMC3293427 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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CMOS-based carbon nanotube pass-transistor logic integrated circuits.

Ding Li L   Zhang Zhiyong Z   Liang Shibo S   Pei Tian T   Wang Sheng S   Li Yan Y   Zhou Weiwei W   Liu Jie J   Peng Lian-Mao LM  

Nature communications 20120214


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 configu  ...[more]

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