Accurate SPICE compatible CNT interconnect and CNTFET models for circuit design and simulation

作者：Yamacli Serhan^*; Avci Mutlu

来源：Mathematical and Computer Modelling, 2013, 58(1-2): 368-378.

DOI：10.1016/j.mcm.2012.11.014

• CNT interconnect
• CNTFET
• Semiconductor device modelling
• SPICE

SPICE compatible CNT interconnect and CNTFET models in Verilog-A hardware description language are presented in this paper. Metallic CNTs are shown to have current saturation characteristics above a threshold voltage and then modelled with piecewise linear functions. On the other hand, the CNTFET model developed utilizes the calculation of the self-consistent potential of the CNT channel depending on gate and drain voltages. Unlike the previous SPICE-enabled CNTFET models using approximations and curve fittings, the proposed model employs a self-consistent method for the calculation of the channel potential in SPICE, providing more accuracy. The versatility of the CNT interconnect model and that of the CNTFET model are shown in CNT circuit simulations.

• 出版日期2013-7