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Related Concept Videos

MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

336
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...
336
MOSFET: Depletion Mode01:20

MOSFET: Depletion Mode

356
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...
356
MOSFET Amplifiers01:17

MOSFET Amplifiers

159
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...
159
Characteristics of MOSFET01:17

Characteristics of MOSFET

378
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...
378
Small-Signal Analysis of MOSFET Amplifiers01:23

Small-Signal Analysis of MOSFET Amplifiers

557
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...
557
Biasing of FET01:22

Biasing of FET

278
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...
278

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Split-Gate: Harnessing Gate Modulation Power in Thin-Film Electronics.

Subin Lee1, Yeong Jae Kim2, Hocheon Yoo1

  • 1Department of Electronic Engineering, Gachon University, Seongnam 13120, Republic of Korea.

Micromachines
|January 26, 2024
PubMed
Summary
This summary is machine-generated.

Split-gate technology offers precise control over electronic device carriers by independently biasing electric fields. Optimizing the gap length is crucial for effective carrier injection and device performance.

Keywords:
high-gain amplifying devicelight-emitting devicelogic circuitneuromorphic devicephotodetectorsplit-gatethin-film transistor

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Area of Science:

  • Semiconductor device physics
  • Materials science

Background:

  • Increasing demand for selective carrier control in electronic devices.
  • Split-gate configuration allows independent biasing of electric fields.
  • Enables formation of both p- and n-channels for versatile device operation.

Purpose of the Study:

  • Review split-gate technology applications across diverse materials.
  • Examine split-gate formation methods and operational mechanisms.
  • Highlight the critical role of gap length in split-gate design.

Main Methods:

  • Analysis of split-gate structures in various electronic devices.
  • Review of fabrication techniques for split-gates.
  • Investigation of device physics under different voltage conditions.

Main Results:

  • Split-gates enable precise Fermi level and barrier height modulation.
  • Facilitates band bending control in unipolar and ambipolar transistors.
  • Demonstrates modulation of contact resistance via barrier height control.

Conclusions:

  • Split-gate technology provides material-independent, precise device control.
  • Gap length design is critical for optimizing electric field injection and carrier control.
  • Split-gates are adaptable for a wide range of electronic applications.