Implementation of a Linearly Graded Binary Metal Gate Work Function VTFET with Air Pocket
| Authors | K. Kalai Selvi1 , K.S. Dhanalakshmi2 |
| Affiliations |
1Government College of Engineering, Tirunelveli, Tamil Nadu, India 2Kalasalingam Academy of Research and Education, Virudhunagar, Tamil Nadu, India |
| Е-mail | kalaiselvi20142@gmail.com |
| Issue | Volume 14, Year 2022, Number 6 |
| Dates | Received 20 September 2022; revised manuscript received 20 December 2022; published online 27 December 2022 |
| Citation | K. Kalai Selvi, K.S. Dhanalakshmi, J. Nano- Electron. Phys. 14 No 6, 06014 (2022) |
| DOI | https://doi.org/10.21272/jnep.14(6).06014 |
| PACS Number(s) | 85.30.Tv |
| Keywords | Tunnel FET (2) , Linearly-graded structure, Subthreshold swing (SS), Vertical TFET, Transconductance generation efficiency. |
| Annotation |
In the present paper, the linearly graded work function (LG-W) characteristics are explored by using binary metal alloy aσb1 – σ gate electrode composition in a high-k gate stack with a dielectric pocket in vertically aligned TFET (VTFET). The VTFET device is constructed using a binary metal alloy gate electrode with a linearly graded work function and an air pocket. The proposed structure performance metrics are evaluated and compared to the state-of-the-art. The integration of LG-W with gate-stack VTFET along with air pocket, namely SG-LG-VTFET with air pocket, reveals performance improvement via metrics such as device ON-current (ION), subthreshold swing (SS), transconductance (gm) as well as transconductance generation efficiency (TGE). SG-LG-VTFET with air pocket generates SS of 13.92 mV/dec. Further, the device exhibits a higher ION (3.6x10 – 5 A/µm) with an ION/IOFF ratio of 1012. Due to the inclusion of the LG-W and air pocket, a narrow band-bending is observed, thus resulting in higher tunneling and steeper SS. A high-k stacked dielectric material enhances the capacitive coupling. The performance of the device is compared with the VTFET device in the absence of a dielectric pocket. The dielectric pocket increases the electric field, which is a desirable phenomenon for increasing the ON-current. For future applications, the scaling in SS is further possible that can increase the electron tunneling rate. |
|
List of References |
Other articles from this number
1) Mechanisms of Current Generation in Graphene/p-CdTe Schottky Diodes [06001-1-06001-5]2) MWCNT Thin Films by CVD Method and Some Applications [06002-1-06002-4]
3) Rheological Analysis of TiO2 Based Nano Drilling Fluid [06003-1-06003-5]
4) Design and Conception of Platform that Allows to Connect Different Solar Panels and Loads through a DC-DC Buck Converter [06004-1-06004-6]
5) Deposition Rate and Electrochemical Corrosion Behavior of Nickel-Based Composite Coatings [06005-1-06005-5]
6) Consistent Rheological Behavior of Formate Based Fluid for Drilling and Workover Operations [06006-1-06006-4]
7) Lead-Free Piezoelectric Materials for Medical Diligence [06007-1-06007-4]
8) Effect of Heat Sink on Mechanical, Metallurgical and Microstructural Characteristics of Friction Stir Spot Welded Dissimilar Al6061 and Al5052 Joints [06008-1-06008-5]
9) Effects of Nanoparticles in Polymer-Based Enhanced Oil Recovery Technique [06009-1-06009-4]
10) Squeezing MHD Flow along with Heat Transfer between Parallel plates by Using the Differential Transform Method [06010-1-06010-5]
11) Calibration of a Microscopic Measurement System by Projection Technique of Coded Periodic Patterns [06011-1-06011-5]
12) Features of Impurity Segregation and Microstructure of Si Ingots obtained by Electron-Beam Purification of Metallurgical Grade Silicon [06012-1-06012-5]
13) Compact and Miniaturized Dual Band Tag Antenna Based on Metamaterial for IoT, RFID Technology, and Hospital Services Applications [06013-1-06013-6]
14) Parametric Analysis by Simulation of Bragg Gratings and Their Application as a Sensor [06015-1-06015-5]
15) Numerical Modeling of Thin-Film Growth by Random Deposition with Particle Evaporation [06016-1-06016-6]
16) Structural and Optical Properties of Copper Indium Oxide Nanocrystalline Powders Prepared by Solid-State Reaction Method [06017-1-06017-5]
17) New Design Approach for the Dual-Band Bandpass Microwave Filter (DBBPF) Inspired by Square Symmetrical Metamaterial Resonators (SSRRs) for X- and Ku-Band Applications [06018-1-06018-5]
18) Photoluminescence and Thermoluminescence Studies of Dysprosium (Dy3+) Doped Zinc Aluminate Nanophosphor (Zn0.97Al2O4:0.03Dy) [06019-1-06019-6]
19) Relaxation of the Electronic Excitation of the Molecule in the Path Spiropyran ↔ Merocyanine [06020-1-06020-7]
20) Enhanced 4-Port MIMO Antenna Based on Electromagnetic Mutual Coupling Reduction Using CSRRs Metamaterials for Sub-6 GHz 5G Applications [06021-1-06021-5]
21) Study of the Optimal Composition of the Bath on Nucleation and Growth of Ni-Fe Alloy Thin Films [06022-1-06022-5]
22) Film Thickness Effect on Properties of Co-ZnO Thin Films Prepared by Sol-Gel Method [06023-1-06023-6]
23) Abrasion, Wear, and Viscosity Analysis of Nano Fe3O4 Based Pongamia Bio-Oil [06024-1-06024-4]
24) Point-Contact Spectroscopy of Mo/Si Superlattices [06025-1-06025-6]
25) Sensor Methods for the Detection of Polycyclic Aromatic Hydrocarbons (PAHs) in Industrial Wastewater [06026-1-06026-5]
26) Recent Advancements in Electrochemical Conversion of Carbon Dioxide [06027-1-06027-5]
27) Behavior of CAD 110 Copper (Heat Sink Material) as a Fractal Structured RFID Antenna in High Temperature Operation [06028-1-06028-5]
28) Mechanical Spectroscopy and Internal Friction in SiO2/Si [06029-1-06029-7]
29) The Influence of Nanosized Active Particles of the Melt and the Electrode Surface on Charge Transfer Processes at the Electrode/Melt Interface [06030-1-06030-3]
30) Concentration Dependence of Thermodynamic and Dynamic Parameters of High-Entropy Alloys [06031-1-06031-4]
31) Modeling the Abnormal Behavior of the 6H-SiC Schottky Diode Using Lambert W Function [06032-1-06032-4]
32) Simulation Study of CZTS/CZTSe Tandem Solar Cell by Using SCAPS-1D Software [06033-1-06033-10]
33) About One Improvement of Approximating Functions Method for the Problems with Nonlinear Media [06034-1-06034-6]
