Using low-k oxide for reduction of leakage current in Double Gate Tunnel FET

Author(s):  
Mahdi Vadizadeh ◽  
Morteza Fathipour
Keyword(s):  
2015 ◽  
Vol 118 (16) ◽  
pp. 164101 ◽  
Author(s):  
Y. Li ◽  
A. Leśniewska ◽  
O. Varela Pedreira ◽  
J.-F. de Marneffe ◽  
I. Ciofi ◽  
...  

Author(s):  
Ameer F. Roslan ◽  
F. Salehuddin ◽  
A.S. M.Zain ◽  
K.E. Kaharudin ◽  
H. Hazura ◽  
...  

<p>This paper presents an investigation on properties of Double Gate FinFET (DGFinFET) and impact of physical properties of FinFET towards short channel effects (SCEs) for 30 nm device, where depletion-layer widths of the source-drain corresponds to the channel length aside from constant fin height (HFIN) and the fin thickness (TFIN). Virtual fabrication process of 3-dimensional (3D) design is applied throughout the study and its electrical characterization is employed and substantial is shown towards the FinFET design whereby in terms of the ratio of drive current against the leakage current (ION/IOFF ratio) at 563138.35 compared to prediction made by the International Technology Roadmap Semiconductor (ITRS) 2013. Conclusively, the incremental in ratio has fulfilled the desired in incremental on the drive current as well as reductions of the leakage current. Threshold voltage (VTH) meanwhile has also achieved the nominal requirement predicted by the International Technology Roadmap Semiconductor (ITRS) 2013 for which is at 0.676±12.7% V. The ION , IOFF and VTH obtained from the device has proved to meet the minimum requirement by ITRS 2013 for low performance Multi-Gate technology.</p>


2021 ◽  
Author(s):  
SHIKHA U S ◽  
Rekha K James ◽  
Jobymol Jacob ◽  
Anju Pradeep

Abstract 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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