电器与能效管理技术 ›› 2022, Vol. 0 ›› Issue (8): 39-43.doi: 10.16628/j.cnki.2095-8188.2022.08.006

• 研究与分析 • 上一篇    下一篇

基于裸片封装的SiC MOSFET功率模块热分析*

王浩南1, 曹玉峰2, 赖耀康2, 胡彩霞3, 张宏宇1, 王梓丞1, 翟国富1   

  1. 1. 哈尔滨工业大学 电器与电子可靠性研究所, 黑龙江 哈尔滨 150001
    2. 北京市科通电子继电器总厂有限公司, 北京 100176
    3. 北京航天自动控制研究所, 北京 100854
  • 收稿日期:2022-04-02 出版日期:2022-08-30 发布日期:2022-10-11
  • 作者简介:王浩南(1998—),男,硕士研究生,研究方向为电力电子器件及系统可靠性。|曹玉峰(1982—),男,高级工程师,主要从事高可靠固态功率控制器和固态继电器研究。|赖耀康(1984—),男,高级工程师,主要从事固态继电器、固态功率控制器研发工作。
  • 基金资助:
    *国家自然科学基金项目(61671172)

Thermal Analysis of SiC MOSFET Power Module Based on Die Package

WANG Haonan1, CAO Yufeng2, LAI Yaokang2, HU Caixia3, ZHANG Hongyu1, WANG Zicheng1, ZHAI Guofu1   

  1. 1. Reliability Institutefor Electric Apparatus and Electronics, Harbin Institute of Technology, Harbin 150001, China
    2. Beijing Keytone Electronic Relay Corp., Beijing 100176, China
    3. Beijing Institute of Aerospace Automatic Control, Beijing 100854, China
  • Received:2022-04-02 Online:2022-08-30 Published:2022-10-11

摘要:

SiC MOSFET因其耐高温、高压的优点,被广泛应用于大功率固态功率控制器的设计中。针对固态功率控制器工况,选用裸片封装的SiC MOSFET,对功率模块的堆叠结构进行设计及热阻分析;对键合结构的选型与布局进行设计;对封装连接铜线、铜带的热影响进行分析。在封装设计基础上,通过有限元仿真对功率模块热性能进行评估。最后,搭建平台进行单路热测试。结果验证了仿真的准确性,以及封装设计的合理性。

关键词: SiC MOSFET, 裸片封装, 热路理论, 固态功率控制器, 有限元热仿真

Abstract:

SiC MOSFETs are widely used in the design of high-power solid-state power controllers due to the high temperature and high voltage resistance advantages.Aiming at the working conditions of solid-state power controllers,the die-packaged SiC MOSFETs are selected.The stacked structure of the power module is designed and its thermal resistance is analyzed.The selection and layout of the bonding structure is designed.The thermal influence of the package connection copper wire and copper tape is analyzed.Based on the packaging design,the thermal performance of the power module is evaluated by the finite element simulation.Finally,a platform for single channel thermal test is build.The results verify the accuracy of the simulation and the rationality of the packaging design.

Key words: SiC MOSFET, die package, thermal circuit theory, solid-state power controller, finite element thermal simulation

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