SMT贴片工序-3D X-RAY检测SMT贴装线路板,BGA焊接检验Issuing time:2022-09-30 13:39 SMT贴片工序-3D X-RAY检测SMT贴装线路板,BGA焊接检验
X-Ray (Automatic X-Ray Inspection自动X射线检查)当待测基板进入机器内部后,位于线路板上方有一X-Ray发射管,其发射的X射线穿过线路板后被置于下方的探测器(一般为摄像机)接收,由于焊点中含有可以大量吸收X射线的铅,因此与玻璃纤维、铜、硅等其它材料的X射线相比,照射在焊点上的X射线被大量吸收,而呈黑点产生良好图象,使得对焊点的分析变得相当直观。 3D X-Ray技术除了可以检验双面贴装线路板外,还可以对那些不可见焊点如BGA等进行多层图象“切片”检测,即对BGA焊接连接处的顶部、中部和低部进行逐层检验。 同时利用此方法还可测通孔(PHT)焊点,检查通孔中焊料是否充实,从而极大地提高焊点连接质量。 Declaration: This article is originally created by the editor of Guangzhou Dingchang Electronics. Some materials are from our own factory, cooperative customers and the Internet. In case of any rights issues or content errors, you can contact the editor via email (91hui@163.com) for handling and correction. Reprinting is welcome, but please indicate the source link.https://enpc.gzdcsmt.com/news/news642.html
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