印制电路板线路边缘呈锯齿状问题的探讨

Study on the problem of dogtooth circuit of PCB

线路边缘呈锯齿状是印制电路板生产过程中的常见缺陷之一,具有功能性影响。产生线路锯齿状的原因错综复杂,解决起来比较困难。本文结合生产实例,利用正交试验方法,对可能导致线路边缘呈锯齿状的若干因素进行试验和分析,得出导致线路呈锯齿状的主要因素,并提出改善方向。

The edge of circuit shows jagged shape, known as dogtooth circuit, is one of the common defects which can have some functional influences. The reasons for the problem are intricate and complex, which is difficult to solve. Based on real cases, the causes of the dogtooth circuit of PCB were analyzed by means of the ortho experiment in this paper. The main factors resulting in this were concluded and the corresponding improvementmeasures were then put forward.