Enhancement and Modeling of Drain Current in Negative Capacitance Double Gate TFET

被引：0
作者：
Shikha U S
Rekha K James
Jobymol Jacob
Anju Pradeep
机构：
[1] Cochin University of Science and Technology,Division of Electronics, School of Engineering
[2] College of Engineering Poonjar,Department of Electronics Engineering
来源：
Silicon | 2022年 / 14卷
关键词：
Negative capacitance; Tunnel field effect transistors; Drain current modeling; Double gate structure; Heterojunction; Tangent line approximation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The drain current improvement in a Negative Capacitance Double Gate Tunnel Field Effect Transistor (NC-DG TFET) with the help of Heterojunction (HJ) at the source-channel region is proposed and modeled in this paper. The gate oxide of the proposed TFET is a stacked configuration of high-k over low-k to improve the gate control without any lattice mismatches. Tangent Line Approximation (TLA) method is used here to model the drain current accurately. The model is validated by incorporating two dimensional simulation of DG-HJ TFET with one dimensional Landau-Khalatnikov (LK) equation. The model matches excellently with the device simulation results. The impact of stacked gate oxide topology is also studied in this paper by comparing the characteristics with unstacked gate oxide. Voltage amplification factor (Av), which is an important parameter in NC devices is also analyzed.
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页码：6157 / 6167
页数：10
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