Analytical modeling of subthreshold swing in undoped trigate SOI MOSFETs

被引:25
作者
Ghanatian, Hamdam [1 ]
Hosseini, Seyed Ebrahim [1 ]
机构
[1] Ferdowsi Univ Mashhad, Dept Elect Engn, Mashhad, Iran
关键词
Analytical model; Trigate SOI MOSFET; 3-D Poisson's equation; Parabolic potential distribution; Subthreshold swing; Conduction path; Mobile charges; GATE; SI;
D O I
10.1007/s10825-016-0817-2
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new analytical model for the subthreshold swing of nanoscale undoped trigate silicon-on-insulator metal-oxide-semiconductor field-effect transistors (MOSFETs) is proposed, based on the channel potential distribution and physical conduction path concept. An analytical model for the potential distribution is obtained by solving the three-dimensional (3-D) Poisson's equation, assuming a parabolic potential distribution between the lateral gates. In addition, mobile charges are considered in the model. The proposed analytical model is investigated and compared with results obtained from 3-D simulations using the ATLAS device simulator and experimental data. It is demonstrated that the analytical model predicts the subthreshold swing with good accuracy for different lengthes, thicknesses, and widths of channel.
引用
收藏
页码:508 / 515
页数:8
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