Assessment of Ambipolar Behavior of a Tunnel FET and Influence of Structural Modifications

作者:Narang Rakhi*; Saxena Manoj; Gupta R S; Gupta Mridula
来源:Journal of Semiconductor Technology and Science, 2012, 12(4): 482-491.
DOI:10.5573/JSTS.2012.12.4.482

摘要

In the present work, comprehensive investigation of the ambipolar characteristics of two silicon (Si) tunnel field-effect transistor (TFET) architectures (i.e. p-i-n and p-n-p-n) has been carried out. The impact of architectural modifications such as heterogeneous gate (HG) dielectric, gate drain underlap (GDU) and asymmetric source/drain doping on the ambipolar behavior is quantified in terms of physical parameters proposed for ambipolarity characterization. Moreover, the impact on the miller capacitance is also taken into consideration since ambipolarity is directly related to reliable logic circuit operation and miller capacitance is related to circuit performance.

  • 出版日期2012-12