基于零功耗的蒸发式冷却用于SiC mosfets中额定电流传导.
Kuo-Bin Hong1, Shivendra Kumar Singh2,3, Chen Sung4
1Semiconductor Research Center, Hon Hai Research Institute, Taipei, Taiwan.
Scientific reports
|May 10, 2025
概括
本研究介绍了用于碳化 (SiC) MOSFET 的零功率蒸发式冷却系统. 创新的设计有效降低设备温度,为高功率电子产品提供可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 热管理 热管理
- 半导体设备 半导体设备
背景情况:
- 碳化 (SiC) MOSFETs产生大量热量,特别是在运行极限附近,需要先进的冷却解决方案.
- 传统的冷却系统往往消耗大量的能源,增加运营成本和环境影响.
- 有效的热管理对于高功率电子设备的可靠性和性能至关重要.
研究的目的:
- 为SiC MOSFETs展示一个高效,零功耗的蒸发式冷却系统.
- 通过使用电阻相关性来研究MOSFET的实时连接温度监测.
- 评估冷却性能并确定优化关键参数.
主要方法:
- 一个以毛细管驱动的蒸发式冷却系统,使用棉绳和纤维素纸用于水运输和分配.
- 通过在电阻 (RON) 和Tj之间的相关性实时监控连接点温度 (Tj).
- 使用COMSOL模拟来模拟热传递并验证实验结果.
主要成果:
- 蒸发式冷却系统有效地分散了42%,没有风扇的总热量和89%的风扇.
- 实验数据与COMSOL模拟结果非常接近.
- 优化传热和增加冷却高度被确定为提高效率的关键.
结论:
- 开发的系统为高功率SiC MOSFET提供了可持续和高效的冷却解决方案.
- 这项技术减少了对能源密集型冷却方法的依赖.
- 该系统显示了在工业应用中可扩展性的潜力.
相关概念视频
Characteristics of MOSFET
301
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...
301
MOSFET
390
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...
390
MOSFET: Depletion Mode
285
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...
285
MOSFET: Enhancement Mode
246
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...
246
MOS Capacitor
630
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...
630
MOSFET 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


