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热循环条件下SnAgCu/Cu焊点金属间化合物生长及焊点失效行为 被引量：10

Growth Kinetic of Intermetallic Compounds and Failure Behavior for SnAgCu/Cu Solder Joints Subjected to Thermal Cycling
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摘要 研究了热循环过程中SnAgCu/Cu焊点界面金属间化合物的生长规律及焊点疲劳失效行为。提出了热循环条件下金属间化合物生长的等效方程以及焊点界面区不均匀体模型,并用有限元模拟的方法分析了热循环条件下焊点界面区的应力应变场分布及焊点失效模式。研究结果表明:低温极限较低的热循环,对应焊点的寿命较低。焊点的失效表现为钎料与金属间化合物的界面失效,且金属间化合物厚度越大,焊点中的累加塑性功密度越大,焊点越容易失效。 The growth kinetic of intermetallic compounds（IMCs） and fatigue failure behavior of SnAgCu/Cu solder joints subjected to thermal cycling have been investigated.An equivalent IMC growth equation for thermal cycling and a heterogeneous model for solder joint interface were proposed,and the finite element（FEM） simulation was applied to analyze the stress/strain field distribution on solder joint interface as well as the failure mode of solder joints subjected to thermal cycling.The results show that the lower the cryogenic temperature limit of the thermal cycling,the lower the fatigue life of the solder joint.Failure mode of solder joints exhibits solder fatigue failure with failure site close to solder/IMC interface.The thicker the IMC layer,the more accumulated plastic work density in solder joint,as a result,the solder joint with a thicker IMC layer is more prone to failure.
作者 肖慧 李晓延 李凤辉
机构地区 北京工业大学材料科学与工程学院
出处 《材料工程》 EI CAS CSCD 北大核心 2010年第10期38-42,共5页 Journal of Materials Engineering
基金 国家自然科学基金项目(50871004) 北京市自然科学基金项目(2082003) 广东省科技计划项目粤澳关键领域重点突破项目(2008A092000007) 广东省教育部产学研结合项目(2009B090300035)
关键词 金属间化合物 SnAgCu/Cu焊点界面区 热循环 可靠性 有限元 IMC SnAgCu/Cu solder joint interface thermal cycling reliability FEM
分类号 TG425 [金属学及工艺—焊接]
  • 相关文献

参考文献13

  • 1ANDERSSON C,TEGEHALL P E,ANDERSSON D R,et al.Thermal cycling aging effect on the shear strength,microstructure,intermetallic compounds (IMC) and crack initiation and propagation of reflow soldered Sn-3 8Ag-0 7Cu and wave soldered Sn-3.5Ag ceramic chip components[J].IEEE Transactions on Components and Packaging Technology,2008,31(2):331-344.
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二级参考文献30

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共引文献27

同被引文献98

引证文献10

二级引证文献27

材料工程
2010年 第10期

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