相关实验视频
Updated: Jan 15, 2026

15:47
Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
Published on: November 1, 2013
17.0K
侧面半导体自由空间门晶体管
Glen Isaac Maciel García1, Vishal Khandelwal1, Ganesh Mainali2
1Applied Physics Program, Physical Sciences and Engineering (PSE) Division, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia.
Nano letters
|October 11, 2025
概括
研究人员开发了一种新的半导体自由空间门晶体管 (SFGT) 架构. 这种创新的设计可以在没有固体介电层的宽带间隙半导体和超宽带间隙半导体中实现高性能.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 半导体物理 半导体物理
背景情况:
- 传统的晶体管依赖于固体介电层,这可能会由于电荷和陷状态而引入性能限制.
- 宽带和超宽带半导体为高功率和高频应用提供了潜力,但在设备制造和性能方面面临挑战.
研究的目的:
- 介绍和演示一个新的横向晶体管架构,半导体自由空间门晶体管 (SFGT).
- 研究宽带和超宽带半导体中自由空间封闭的可行性和性能.
- 为了克服与晶体管中的传统介电层相关的局限性.
主要方法:
- 制造具有100nm以下道和双侧门的SFGT,用半导体自由空间门配置取代传统的固体介电器.
- 使用β-Ga2O3作为半导体材料来描述SFGT性能.
- 评估关键晶体管参数,包括下值斜率,排水电流,歇斯底里,开启/关闭比率和故障电压.
主要成果:
- 首次在宽带和超宽带半导体中展示自由空间封闭.
- 用β-Ga2O3制造的SFGT实现了与氧化物门式晶体管相比的性能.
- 实现的子值斜率低于200mV/dec,排水电流>250mA/mm,歇斯底里<230mV,开启/关闭比率>10^6和故障电压>500V.
结论:
- 通过消除固体介电层,SFGT架构为传统晶体管提供了一个有希望的替代方案.
- 开放门几何允许直接调制和值电压调节,减轻介电器相关的问题.
- SFGT显示了高级内存,传感和功率应用的巨大潜力.
相关概念视频
Semiconductors
1.4K
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...
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...
1.4K
Metal-Semiconductor Junctions
903
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
903
Field Effect Transistor
1.1K
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...
1.1K
Characteristics of MOSFET
936
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...
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...
936
MOSFET
1.2K
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...
In an n-MOSFET, the structure includes n-type source and drain...
1.2K
Biasing of Metal-Semiconductor Junctions
554
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
554

