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IGBT模块焊料层空洞对模块温度影响的研究
引用本文:徐玲,周洋,张泽峰,陈明祥,刘胜.IGBT模块焊料层空洞对模块温度影响的研究[J].中国电子科学研究院学报,2014(2):125-129.
作者姓名:徐玲  周洋  张泽峰  陈明祥  刘胜
作者单位:华中科技大学机械科学与工程学院,武汉430074
基金项目:国家863高技术基金项目(2011AA050401)
摘    要:介绍了IGBT模块的封装工艺,分析真空回流焊接过程中焊料层空洞的形成机理,并使用SAM方法检测并测量空洞;接着通过有限元模拟方法对模块进行热分析,对比了焊料层有、无空洞情况下模块的整体温度,具体研究焊料层空洞尺寸、空洞分布位置和焊料层厚度对芯片温度分布的影响。

关 键 词:IGBT  焊料层空洞  有限元分析  热分析  可靠性

Influence of Solder Void to Thermal Distribution of IGBT Module
XU Ling,ZHOU Yang,ZHANG Ze-feng,CHEN Ming-xiang,LIU Sheng.Influence of Solder Void to Thermal Distribution of IGBT Module[J].Journal of China Academy of Electronics and Information Technology,2014(2):125-129.
Authors:XU Ling  ZHOU Yang  ZHANG Ze-feng  CHEN Ming-xiang  LIU Sheng
Affiliation:( School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)
Abstract:The packaging process of IGBT module is introduced,the formation mechanism of the solder void is analyzed,and SAM( Scanning Acoustic Microscope) method is used to detect and measure the voids. Besides,FEA( Finite Element Analysis) method is chosen to analyze the thermal performance of IGBT module. Commercial finite element software is used to compare the temperature distribution of module with and without solder void. Moreover,the relationship between void size,void location,solder thickness and thermal performance of chip are studied.
Keywords:IGBT  solder void  FEA  thermal analysis  reliability
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