Assessment of Carbon Nanotube FETs for High-Frequency Performance

Abstract

The small size, unusual topography, and technological immaturity of carbon nanotube field-effect transistors (CNFETs) have contributed, no doubt, to the fact that the present record for their measured "frequencyindependent performance" is a modest 23 GHz [1]. For the moment, then, we need to rely on simulations to get a better idea of the high-frequency capability of CNFETs. Any field-effect transistor exhibiting good high-frequency performance is likely to have a high, intrinsic, short-circuit, unity-current-gain, frequency