使用Si/SiGe/GeSn材料在直角定向的选择性埋藏的三门垂直功率MOSFET中对道移动性增强技术的研究:设计和性能分析
M Ejaz Aslam Lodhi1,2, Abdul Quaiyum Ansari2, Sajad A Loan3
1Department of Electronics and Communication Engineering, Indira Gandhi Delhi Technical University for Women, Delhi 110006, India.
Micromachines
|April 26, 2025
概括
这项研究引入了一种具有增强通道控制的新型三门垂直功率MOSFET. 新设计显著提高了电子的移动性,并减少了高速应用的启动阻力.
科学领域:
- 半导体设备物理 半导体设备物理
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
背景情况:
- (Si) MOSFET的性能由于通道中的门控制损失而下降.
- 传统的Si功率MOSFET在实现最佳性能方面存在局限性.
研究的目的:
- 介绍和研究一种新的直角导向的选择性埋藏的三门垂直功率MOSFET.
- 为了比较这个新设备的性能与传统的Si功率MOSFET.
- 评估不同通道材料 (SiGe/GeSn超过Si) 对设备性能的影响.
主要方法:
- 利用 2D Silvaco 模拟来进行设备建模和性能分析.
- 研究了使用各种通道材料的设备特性,包括SiGe和GeSn对Si.
- 与传统Si功率MOSFET相比,主要性能指标进行了比较.
主要成果:
- 通过拟议的三门设计,实现了 880 cm2/V·s 的高通道电子流动性.
- 在设备的电流,电阻和透导方面显著改进.
- 实现了0.31 mΩ·cm2的超低的特定ON电阻,提高了优点数据 (FOM1为411.61%,FOM2为98.704%).
结论:
- 新的三门垂直功率MOSFET提供了优越的性能,与传统的Si MOSFET相比.
- 该设备由于增强的参数,适用于高速和切换应用.
- 该技术显示与高流动性通道材料的兼容性,为未来的CMOS应用铺平了道路.
相关概念视频
01:22MOSFET: Enhancement Mode
242
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...
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...
242
01:16MOSFET
375
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...
375
01:17Characteristics of MOSFET
295
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...
295
01:20MOSFET: Depletion Mode
278
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...
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...
278
01:25MOS Capacitor
625
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...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
625
01:17MOSFET Amplifiers
130
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...
130