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超低银SAC钎料焊点界面显微组织演化

梁伟良,薛鹏,何鹏,钟素娟,孙华为

梁伟良,薛鹏,何鹏,钟素娟,孙华为. 超低银SAC钎料焊点界面显微组织演化[J]. 焊接学报, 2018, 39(11): 39-42. DOI: 10.12073/j.hjxb.2018390269
引用本文: 梁伟良,薛鹏,何鹏,钟素娟,孙华为. 超低银SAC钎料焊点界面显微组织演化[J]. 焊接学报, 2018, 39(11): 39-42. DOI: 10.12073/j.hjxb.2018390269
LIANG Weiliang, XUE Peng, HE Peng, ZHONG Sujuan, SUN Huawei. Microstructures evolution of low silver SnAgCu solder joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(11): 39-42. DOI: 10.12073/j.hjxb.2018390269
Citation: LIANG Weiliang, XUE Peng, HE Peng, ZHONG Sujuan, SUN Huawei. Microstructures evolution of low silver SnAgCu solder joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(11): 39-42. DOI: 10.12073/j.hjxb.2018390269

超低银SAC钎料焊点界面显微组织演化

Microstructures evolution of low silver SnAgCu solder joint

  • 摘要: 研究了复合添加Ga/Nd元素的超低银Sn-0.3Ag-0.7Cu钎料在长期时效过程中的微焊点界面组织演化情况. 结果表明,复合添加适量Ga/Nd元素可以显著改善时效后微焊点界面组织,抑制微焊点界面附近大块状金属间化合物以及稀土相的生成. 经720 h时效后,即使在含有过量Nd元素的微焊点界面仍没有发现明显的Ag3Sn相和稀土相,取而代之的是小块状的新相,结合EDS和XRD分析结果推测该相含有Ga2Nd与Cu6Sn5. 经过长期时效处理后,微焊点抗剪力接近Sn-3.8Ag-0.7Cu焊点抗剪力的90%,具有较好的力学性能.
    Abstract: The effect of Ga/Nd multi-addition on microstructure of Sn–0.3Ag–0.7Cu solder in the course of aging treatment was investigated. The results indicated that the multi-addition of Ga/Nd could significantly refine the interfacial microstructure of solder joint and inhibit the formation of intermetallic compounds after aging treatment. After aging treatment over 720 h, no evident rare earth phase Ag3Sn was found in Sn–0.3Ag–0.7Cu–0.5Ga–1Nd solder joints, instead, new phase was formed near the interface of solder joint And the results of EDS and XRD indicated that the new phase should contain Ga2Nd and Cu6Sn5. The shear force of Sn–0.3Ag–0.7Cu solder joint after aging treatment reached 90% of Sn–3.8Ag–0.7Cu solder joint.
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  • 期刊类型引用(4)

    1. 杨佳行,韩永典,徐连勇. 瞬态电流键合对Sn-Ag-Cu钎料焊点界面反应的影响. 材料导报. 2022(01): 136-140 . 百度学术
    2. 杨蔚然,季童童,丁毓,王凤江. 热老化与热循环条件下Bi对Sn-1.0Ag-0.5Cu无铅焊点界面组织与性能的影响. 焊接学报. 2022(11): 157-162+170 . 本站查看
    3. 张春红,张宁,耿德英. Sn-1.0Ag-0.5Cu-0.06Sm无铅钎料的蠕变性能研究. 特种铸造及有色合金. 2020(11): 1302-1306 . 百度学术
    4. 朱堂葵,陈东东,赵玲彦,吕金梅,白海龙,严继康. Ga对Sn-0.1Ag-0.7Cu-0.01Ce焊料合金组织和性能的影响. 热加工工艺. 2019(23): 143-146 . 百度学术

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  • 收稿日期:  2018-05-10

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