BGA焊点空洞缺陷的定量分析
发布时间：2018-11-22 09:50
【摘要】：在BGA焊点空洞缺陷的X射线检测中,如何实现缺陷的定量分析是整个检测过程的关键所在。提出使用全局阈值分割算法提取焊点区域,使用动态阈值分割算法提取空洞区域的技术方案,通过数学形态学开闭运算来去除干扰,计算焊点区域和空洞区域的面积来实现空洞缺陷的定量分析。试验表明,两种分割算法相结合的技术方案合理可行,可快速准确计算焊球内空洞缺陷的面积比,实现焊接质量的定量分析。
[Abstract]:How to realize the quantitative analysis of the defect is the key of the whole detection process in the X-ray inspection of the cavity defect in BGA solder joint. The global threshold segmentation algorithm is used to extract the solder joint area, and the dynamic threshold segmentation algorithm is used to extract the void area. The area of solder joint and void area is calculated to realize the quantitative analysis of void defect. The experimental results show that the technical scheme combined with the two segmentation algorithms is reasonable and feasible and can quickly and accurately calculate the area ratio of voids in the welding ball and realize the quantitative analysis of welding quality.
【作者单位】： 太原工业学院电子工程系;中北大学信息与通信工程学院;
【基金】：国家重大科学仪器设备开发专项(2013YQ240803) 山西省科技攻关项目(20140321010-02,201603D121040-1) 山西省高等学校科技创新项目(2013163)
【分类号】：TG441.7;TN405
本文编号：2348929
[Abstract]:How to realize the quantitative analysis of the defect is the key of the whole detection process in the X-ray inspection of the cavity defect in BGA solder joint. The global threshold segmentation algorithm is used to extract the solder joint area, and the dynamic threshold segmentation algorithm is used to extract the void area. The area of solder joint and void area is calculated to realize the quantitative analysis of void defect. The experimental results show that the technical scheme combined with the two segmentation algorithms is reasonable and feasible and can quickly and accurately calculate the area ratio of voids in the welding ball and realize the quantitative analysis of welding quality.
【作者单位】： 太原工业学院电子工程系;中北大学信息与通信工程学院;
【基金】：国家重大科学仪器设备开发专项(2013YQ240803) 山西省科技攻关项目(20140321010-02,201603D121040-1) 山西省高等学校科技创新项目(2013163)
【分类号】：TG441.7;TN405
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