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发明公开
CN1869667A 一种检测印刷电路板缺陷的轮廓分析方法 失效 - 权利终止 许可 质押 转让

一种检测印刷电路板缺陷的轮廓分析方法
摘要：
本发明公开了一种检测印刷电路板缺陷的轮廓分析方法。该方法包括以下步骤：1)将Gerber格式转换为高分辨率的位图格式，获取印刷电路板的参考图象；2)利用高速线阵列相机扫描印刷电路板，获取印刷电路板的实际图象；3)计算印刷电路板的标准参考轮廓和实际轮廓，并比较印刷电路板的标准参考轮廓和实际轮廓；4)根据比较结果确定印刷电路板的标准参考轮廓和实际轮廓之间的差异；5)设置缺陷过滤条件，并对差异进行过滤处理。通过以上步骤对传统的印刷电路板检测工艺进行了改进，进一步提高了检测效率。
摘要（英）：

The invention discloses an outline analyzing method for detecting printed circuit board defects, comprising the steps of: 1) converting Gerber format into high-resolution bitmap format and obtaining reference image of printed circuit board (PCB); 2) using high speed line array camera to scan the PCB and obtaining actual image of the PCB; 3) calculating standard reference outline and actual outline of the PCB and comparing them with each other; 4) according to the comparative result, determining the difference between them; 5) setting defect filtering conditions and making difference filtration processing. By these steps, it improves traditional PCB detecting process and further raises detecting efficiency.

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