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Related Concept Videos

MOS Capacitor01:25

MOS Capacitor

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A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
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MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

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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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Non-ohmic Devices00:51

Non-ohmic Devices

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In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
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Types of Semiconductors01:20

Types of Semiconductors

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Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
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Semiconductors01:22

Semiconductors

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There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
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Characteristics of MOSFET01:17

Characteristics of MOSFET

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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...
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A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
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Emerging Logic Devices beyond CMOS.

Ziqian Hao1, Yang Yan1, Yi Shi1

  • 1National Laboratory of Solid-State Microstructures, School of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China.

The Journal of Physical Chemistry Letters
|February 18, 2022
PubMed
Summary
This summary is machine-generated.

Emerging logic devices are crucial for advancing beyond the limits of silicon-based complementary metal-oxide-semiconductor (CMOS) technology. This research explores innovative designs for next-generation computing, enabling high-performance and diverse applications.

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Area of Science:

  • Materials Science
  • Electrical Engineering
  • Computer Science

Background:

  • Silicon-based complementary metal-oxide-semiconductor (CMOS) transistors have underpinned digital electronics for decades.
  • Continuous scaling of CMOS transistors approaches physical limits, hindering further performance improvements.
  • The rise of data-centric applications necessitates advanced computing capabilities beyond current CMOS technology.

Purpose of the Study:

  • To review innovative design strategies for emerging logic devices.
  • To identify opportunities and challenges in developing post-CMOS computing solutions.
  • To provide a perspective on achieving high-performance and diverse logic computing.

Main Methods:

  • Review of recent research and development in novel logic device architectures.
  • Analysis of material science innovations impacting device performance.
  • Discussion of architectural design strategies for next-generation computing.

Main Results:

  • Identification of several promising emerging logic device concepts.
  • Exploration of design strategies that extend or transcend current CMOS capabilities.
  • Highlighting the potential for revolutionary advancements in computing performance.

Conclusions:

  • Emerging logic devices are essential for meeting the escalating demands of modern computing.
  • Innovations in materials, architecture, and applications are key to realizing next-generation logic devices.
  • The post-Moore era requires a fundamental shift towards new paradigms in logic computing.