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Related Concept Videos

MOSFET01:16

MOSFET

487
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...
487
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

362
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...
362
Characteristics of MOSFET01:17

Characteristics of MOSFET

398
Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable...
398
MOSFET Amplifiers01:17

MOSFET Amplifiers

165
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...
165
MOSFET: Depletion Mode01:20

MOSFET: Depletion Mode

368
Depletion-mode MOSFETs represent a unique subset of MOSFET technology, functioning fundamentally differently from their enhancement-mode counterparts. Unlike enhancement MOSFETs, which require a positive gate-source voltage (Vgs) to turn on, depletion-mode MOSFETs are inherently conductive and "normally on" devices.
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity...
368
Small-Signal Analysis of MOSFET Amplifiers01:23

Small-Signal Analysis of MOSFET Amplifiers

576
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...
576

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Vertical GaN MOSFET Power Devices.

Catherine Langpoklakpam1, An-Chen Liu1, Yi-Kai Hsiao2

  • 1Department of Photonics and Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Yang-Ming Chiao Tung University, Hsinchu 30010, Taiwan.

Micromachines
|October 28, 2023
PubMed
Summary
This summary is machine-generated.

Vertical Gallium Nitride (GaN) MOSFETs offer superior performance for high-power electronics due to GaN

Keywords:
GaN power deviceMOSFETbreakdown voltageelectric fieldspecific on-resistance

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Area of Science:

  • Materials Science
  • Electrical Engineering
  • Semiconductor Physics

Background:

  • Gallium Nitride (GaN) exhibits a wide bandgap, high critical electric field, and high saturation velocity, making it ideal for high-power devices.
  • Vertical GaN MOSFETs present significant advantages over silicon counterparts for power electronics applications.

Purpose of the Study:

  • To provide a concise overview of the significance of vertical GaN MOSFETs.
  • To explore the distinctive architectures and advantages of these devices.
  • To highlight recent advancements and methods for enhancing breakdown voltage.

Main Methods:

  • Literature review of vertical GaN MOSFET research.
  • Analysis of device architectures and performance metrics.
  • Discussion of techniques for improving breakdown voltage.

Main Results:

  • Vertical GaN MOSFETs demonstrate superior power handling capabilities.
  • Distinct architectures offer tailored performance for specific applications.
  • Recent advancements focus on improving efficiency and reliability.

Conclusions:

  • Vertical GaN MOSFETs are pivotal for the future of power electronics.
  • Continued progress in design and fabrication is enhancing their capabilities.
  • Methods to increase breakdown voltage are crucial for next-generation devices.