A Semiphysical Large-Signal Compact Carbon Nanotube FET Model for Analog RF Applications.

Autor: Schroter, Michael, Haferlach, Max, Pacheco-Sanchez, Anibal, Mothes, Sven, Sakalas, Paulius, Claus, Martin
Předmět:
Zdroj: IEEE Transactions on Electron Devices; Jan2015, Vol. 62 Issue 1, p52-60, 9p
Abstrakt: A compact large-signal model, called Compact Carbon Nanotube Model (CCAM), is presented that accurately describes the shape of DC and small-signal characteristics of fabricated carbon nano-tube FETs (CNTFETs). The new model consists of computationally efficient and smooth current and charge formulations. The model allows, for a given gate length, geometry scaling from single-finger single-tube to multifinger multitube transistors. Ambipolar transport, temperature dependence with self-heating, noise, and a simple trap model have also been included. The new model shows excellent agreement with the data from both the Boltzmann transport equation and measurements of Schottky-barrier CNTFETs and has been implemented in Verilog-A, making it widely available across circuit simulators. [ABSTRACT FROM PUBLISHER]
Databáze: Complementary Index