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Related Concept Videos

MOSFET Amplifiers01:17

MOSFET Amplifiers

186
The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
186
Small-Signal Analysis of MOSFET Amplifiers01:23

Small-Signal Analysis of MOSFET Amplifiers

603
In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage (VGS) of the MOSFET is the sum of the DC biasing voltage and the small time-varying input signal. This combination sets up the operating point and modulates the drain current (ID) that flows from the drain to the source. When a small AC signal is superimposed on the DC bias voltage at the gate, the instantaneous drain current comprises three...
603
Biasing of FET01:22

Biasing of FET

314
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
314
Field Effect Transistor01:29

Field Effect Transistor

475
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
475
MOSFET01:16

MOSFET

513
The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in modern electronics thanks to its versatility and efficiency in controlling electrical currents. This device, also known as IGFET, MISFET, and MOSFET, has three main terminals: the Source, Drain, and Gate. MOSFETs are classified into n-channel or p-channel types based on the doping characteristics of their substrate and the source or drain regions.
In an n-MOSFET, the structure includes n-type source and drain...
513
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

378
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
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Related Experiment Video

Updated: Jul 21, 2025

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Implementation of Gate-All-Around Gate-Engineered Charge Plasma Nanowire FET-Based Common Source Amplifier.

Sarabdeep Singh1, Leo Raj Solay2, Sunny Anand2

  • 1Model Institute of Engineering and Technology, Jammu 181122, India.

Micromachines
|July 29, 2023
PubMed
Summary

This study introduces a novel Gate-Engineered Gate-All-Around Charge Plasma Nanowire Field Effect Transistor (GAA-DMG-GS-CP NW-FET) with enhanced performance. The device shows promise for future low-power nanoscale applications due to improved analog and RF characteristics.

Keywords:
Nanowire FETcharge plasmacommon source amplifierdual-material channelgate stackingsingle-material gate

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Area of Science:

  • Semiconductor device physics
  • Nanotechnology
  • Electronic circuit design

Background:

  • Gate-All-Around (GAA) structures offer superior gate control for nanowire field-effect transistors.
  • Charge plasma dopingless techniques reduce fabrication complexity and variability.
  • Gate engineering, including dual-material gates (DMG) and gate stacks (GS), is crucial for optimizing device performance.

Purpose of the Study:

  • To evaluate the analog and RF performance of a novel Gate-Engineered Gate-All-Around Charge Plasma Nanowire Field Effect Transistor (GAA-DMG-GS-CP NW-FET).
  • To compare the proposed device's performance against a standard Gate-All-Around Single-Material Gate Charge Plasma Nanowire Field Effect Transistor (GAA-SMG-CP NW-FET).
  • To implement and analyze a common source (CS) amplifier circuit using the proposed NW-FET.

Main Methods:

  • Device simulation using the Silvaco TCAD tool.
  • Incorporation of dual-material gate (DMG) and gate stack (GS) engineering.
  • Charge plasma dopingless fabrication approach using metal contacts.
  • Lookup table (LUT) based implementation of a common source amplifier circuit.

Main Results:

  • The GAA-DMG-GS-CP NW-FET demonstrated significantly improved current characteristics compared to the GAA-SMG-CP NW-FET.
  • The common source amplifier circuit using the proposed device achieved a gain of 15.06 dB.
  • The dopingless technique effectively eliminated doping-related fluctuations and reduced the thermal budget.

Conclusions:

  • The proposed GAA-DMG-GS-CP NW-FET exhibits superior analog, RF, and circuit performance.
  • The device's enhanced characteristics make it a strong candidate for future nanoscale and low-power electronic applications.
  • Gate engineering and dopingless techniques are effective strategies for advancing NW-FET technology.