Abstract
Fin Field Effect Transistors (FinFETs) have appeared as a replacement for devices like Metal Oxide Semiconductor Field Effect Transistor (MOSFET) at low power operations. This paper presents a novel 3-D Quad gate FinFET device designed with vertically stacked Nano-sheets. This device is designed on COGENDA TCAD (Tanner Computer Aided Design) tool at 30 nm technology node. From the general model of tri-gate FinFET, the structure is modified with a new design approach. The approach includes addition of fourth gate to the basic FinFET tri-gate structure. Also, inclusion of three vertically stacked Nano-sheets as fins forms a new structure of Quad Gate vertically Stacked Nano-sheets FinFET (QG-SNS FinFET). The simulation results reveal that the designed device manifests steep Sub-threshold Slope (SS) of 26.7 mV/ decade, remarkably reduced OFF state current (IOFF) of the order of 9.85 × 10−14 A and comparable ON current (ION) of 1.0 × 10−5 A. The performance investigation of the device also includes cut off frequency (FT), threshold voltage (Vth), total gate capacitance (CGG) and transconductance (Gm). Hence the designed device is well suited for low power and high performance applications.
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We thank Manav Rachna International Institute of Research and Studies, Faridabad for the lab facilities to carry out this work.
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Design and simulation of the device were performed by Shaifali Ruhil and Dr. Umesh Dutta. Data collection, material preparation and analysis were done by Shaifali Ruhil, Dr. Vandana Khanna and Dr. Umesh Dutta. The initial manuscript draft was written by Shaifali Ruhil. The manuscript was edited and reviewed by Dr. Vandana Khanna, Shaifali Ruhil, Dr. Umesh Dutta and Dr. Neeraj Kumar Shukla.
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Ruhil, S., Dutta, U., Khanna, V. et al. Design of a 30 Nm Novel 3-D Quad Gate Stacked Nano-Sheets FinFET. Silicon 14, 11859–11868 (2022). https://doi.org/10.1007/s12633-022-01911-4
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DOI: https://doi.org/10.1007/s12633-022-01911-4