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Science 24 March 2006:
Vol. 311. no. 5768, p. 1735
DOI: 10.1126/science.1122797
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Brevia

An Integrated Logic Circuit Assembled on a Single Carbon Nanotube

Zhihong Chen1, Joerg Appenzeller1*, Yu-Ming Lin1, Jennifer Sippel-Oakley2, Andrew G. Rinzler2, Jinyao Tang3, Shalom J. Wind4, Paul M. Solomon1 and Phaedon Avouris1*

1 IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598, USA.
2 Department of Physics, University of Florida, Gainesville, FL 32611, USA.
3 Department of Chemistry, Columbia University, New York, NY 10027, USA.
4 Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA.


Figure 1 Fig. 1. (A) Scanning electron microscope image of a SWCNT ring oscillator consisting of five CMOS inverter stages. A test inverter was added to determine the parameter set for the actual measurement. (B) Characteristics for the p-type FET with Pd metal gate and n-type FET with Al gate. (C) Inverter characteristics and its mirrored curve. (D) Voltage-dependent frequency spectra. From the left to the right, the respective supply voltages are as follows: Vdd = 0.5 V and 0.56 V to 0.92 V (in 0.4-V increments). [View Larger Version of this Image (61K GIF file)]
 

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Science. ISSN 0036-8075 (print), 1095-9203 (online)