基于热反射的碳化物肖特基屏障二极管的短暂温度测量
Jingxuan Wang1, Lixing Zhou1, Xianwei Meng1
1Institute of Semiconductor Device Reliability Physics, Beijing University of Technology, Beijing 100124, China.
The Review of scientific instruments
|June 3, 2024
概括
这项研究引入了一种新型的热反射装置,用于精确的,毫秒级的碳化物 (SiC) 肖特基屏障二极管 (SBD) 中的短暂温度检测. 该设备准确地测量温度变化并确定热阻,改善设备分析.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 热管理 热管理
背景情况:
- 碳化 (SiC) 舒特基屏障二极管 (SBD) 是重要的功率电子设备.
- 精确的过渡温度测量对于理解SiC SBD性能和可靠性至关重要.
- 现有的热量测量技术对动态事件的时间分辨率有局限性.
研究的目的:
- 为SiC SBDs开发和验证一种新的短暂温度检测装置.
- 在加热和冷却周期期间调查SiC SBD的动态热行为.
- 使用先进的解卷方法来确定SiC SBD的热电阻概况.
主要方法:
- 使用530nm绿色激光的热反射理论构建一个短暂温度测量装置.
- 对红外热成像进行温度测量精度的验证.
- 结构函数方法和贝叶斯解卷算法用于热阻分析的应用.
主要成果:
- 开发的热反射装置实现了高时间分辨率,检测了SiC SBDs中的毫秒级短暂温度变化.
- 通过与红外热成像进行比较,确认了准确的温度测量.
- 该研究阐明了加热和冷却过程中短暂温度曲线的差异,为热过程提供了洞察力.
- 沿热流路径的热电阻成功获得并验证.
结论:
- 这种新型的热反射装置为SiC SBDs的短暂温度测量提供了一种卓越的方法.
- 了解短暂的热行为和热电阻对于优化SiC SBD设计和应用至关重要.
- 采用的解卷技术提供了一个强大的方法来表征设备的热性能.
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