印制电路板制作中的孔间距分析  

Analysis of hole spacing in PCB manufacturing

作　　者：郭志伟 徐杰 杨俊 Guo Zhiwei;Xu Jie;Yang Jun(Huizhou Zhongjing Electronic Technology Co.,Ltd.,Huizhou City,Guangdong Province,516029)

机构地区：[1]惠州中京电子科技有限公司,广东惠州516029

出　　处：《印制电路信息》2021年第11期18-22,共5页Printed Circuit Information

摘　　要：在印制电路板生产过程中,孔间距的工艺能力也是至关重要的。孔间距的设计主要的影响是机械钻孔工序,如孔间距过近会造成机械钻孔时断针、孔偏、两孔间切破产生毛刺等问题;在不同网络的孔与孔间化学镀铜后灯芯相连(微短路)问题。文章以笔者实际工作经验进行实验分析,得出了在工程设计安全孔间距时需考量的一些关键因素,为制程稳定控制提供参考。In the process of printed circuit board,the technological ability of hole spacing is also very important.The main influence of hole spacing design is the mechanical drilling process.For example,if the hole spacing is too close,it will cause problems such as broken needle,hole deviation and burr caused by cutting between two holes and the problem of wick connection(micro short circuit)after electroless copper plating between holes in different networks.In this paper,based on the author's practical work experience,some key factors that should be considered in engineering design of safety hole spacing are obtained,which can provide reference forprocess stability control.

关 键 词：孔间距 灯芯相连 机械钻孔 

分 类 号：TN41[电子电信—微电子学与固体电子学]