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A Hybrid IC Lead Circumcolumnar Welding Technology
Author(s): 
Pages: 33-36,43
Year: Issue:  2
Journal: Electronics and Packaging

Keyword:  hybrid IClead weldingcircumcolumnar weldingreliability;
Abstract: 混合厚膜电路工艺加工中,微电子引线焊接既是制造中的关键工艺技术,又是研究最为薄弱之处。混合厚膜功率电路工作温度较高,组件安装温度可达300℃左右,如使用含铅普通低温焊料,整件组装时会导致焊料熔融、引线移位、电路失效,影响焊接可靠性。文章详细介绍了一种引线绕焊技术,通过工艺实验说明了研究过程,结合高低温焊料使用获得较实用的绕焊工艺实施方法和要求,保证了镀银铜线的高温焊接强度,提高了功率及航天电路外引...
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