表面激活结合式SiC/SiC接口的演化机制和热传输特性
Xinlong Zhao1, Baojun Song2, Yongfeng Qu1
1Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic Science and Engineering, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an 710049, China.
ACS applied materials & interfaces
|October 21, 2025
概括
使用纳米转换层的表面激活粘合 (SAB) 提高了碳化 (SiC) 设备的性能. 喷射-沉积时间控制接口质量,使原子级粘合和较低的热阻用于先进的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 半导体物理 半导体物理
- 表面科学是一门学科.
背景情况:
- 碳化 (SiC) 电源设备由于基于的CMOS驱动芯片而面临限制,导致寄生效应和热问题.
- 具有可定制纳米转换层的表面激活粘合 (SAB) 为SiC设备集成提供了潜力.
- 目前的SAB研究缺乏对债券设计原则的基本理解,以实现最佳绩效.
研究的目的:
- 调查用于碳化 (SiC) 接口的表面激活键设计的基本原则.
- 确定影响SAB中纳米转换层质量的关键过程参数.
- 建立一个理论框架,以优化SAB在先进的电子包装.
主要方法:
- 实验调查喷射-沉积时间和Ar原子轰炸时间对接口形成的影响.
- 分子动力学模拟用于分析SiC/Fe/SiC接口上的断裂机制.
- 测量不同结合配置的接口热阻.
主要成果:
- 喷射-沉积时间被确定为控制结合接口质量的关键参数,而不是Ar原子轰炸时间.
- 优化沉积导致密集,形成Fe单晶接口,并实现Fe和SiC之间的原子级粘合.
- 与SiC/a-C/SiC (6.74 m2K/GW) 相比,SiC/Fe/SiC接口表现出较低的接口热电阻 (4.53 m2K/GW).
结论:
- 揭示了表面激活粘合 (SAB) 的通用理论框架,适用于各种领域.
- 通过喷射沉积控制优化纳米转换层设计可以提高SiC设备的性能.
- 这项研究为使用SAB技术在动力模块包装和光子集成方面的先进应用铺平了道路.
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