中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

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电子与封装 ›› 2016, Vol. 16 ›› Issue (3): 9 -11. doi: 10.16257/j.cnki.1681-1070.2016.0029

• 封装、组装与测试 • 上一篇    下一篇

可伐与铝碳化硅复合材料气密低温钎焊工艺研究

金家富,杨程,霍绍新   

  1. 中国电子科技集团公司第38研究所,合肥 230088
  • 收稿日期:2015-10-30 出版日期:2016-03-20 发布日期:2016-03-20
  • 作者简介:金家富(1981—),男,安徽池州人,硕士,毕业于哈尔滨工业大学,高级工程师,主要从事微电路组装工艺研究工作。

Hermetic Soldering Technics on Kovar and Al/SiCp Composite Material

JIN Jiafu, YANG Cheng, HUO Shaoxin   

  1. China Electronics Technology Group Corporation No.38 Research Institute, Hefei 230088, China
  • Received:2015-10-30 Online:2016-03-20 Published:2016-03-20

摘要: 气密封装对采用裸芯片组装而成的多芯片组件至关重要,它可以让组件内部长期保持惰性气氛,降低元器件因湿气造成的环境失效。可伐材料是一种常用的封装材料,在微组装领域应用广泛。为弥补这种材料材料密度大、导热性能差的缺点,结构上选择铝碳化硅材料增强散热效果,同时达到减重的目的。采用低温钎焊工艺进行材料间连接,针对前期研制过程中出现的半密封检漏不合格问题进行分析,开展焊料选择、焊接参数优化工作,使半密封检漏漏率小于5×10-2Pa·cm3/s。

关键词: 气密封装, 低温钎焊工艺, 焊接参数

Abstract: Hermetic package is very important for MCM modules assembled by bare dies, which could keep inert atmosphere inside for a long time. So the failure of devices for moisture is decreased. Kover is one of popular package materials in micro assembly field, but it has disadvantages just as low conductivity and high density. Al/SiCpcomposite material is selected for supplying these disadvantages. In this article, soldering technics with solder selecting and parameters optimizing for the material is discussed, then the semi-sealed leak rate is less than 5×10-2Pa·cm3/s.

Key words: hermetic package, soldering technics, soldering parameters

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