一、引言在现代电子设备的设计和制造中都要经过印刷电路板设计这一步骤,通常这一工作是在制图板上由人工设计完成的,这要求设计人员具备相当熟练的技巧和丰富的实践经验。随着CAD技术的发展,印刷电路板的计算机辅助设计取得了广泛的应用,它把计算机的快速、准确与设计者的经验、综合分析能力相结合,大大提高了印刷电路板的设计速度和设计质量。本文介绍一种使用环境简单、方便而功能较强的印刷板CAD软件EDPCB,它具有良好的用户界面,所有操作均在键盘上进行,可两层布线,能在点阵式打印机上输出正/反照相版图、阻焊图。其主要技术指标如下: 最大设计版图尺寸:508mm×406mm 两种连线宽度: 0.38mm,1.27mm 焊盘直径: 1.96mm I. INTRODUCTION In the design and manufacture of modern electronic equipment, the design of printed circuit board must go through this step. Usually, this work is done by manual design on the drawing board, which requires designers to have quite skilled skills and rich Experience. With the development of CAD technology, computer-aided design of printed circuit board has been widely used. It combines the speed and accuracy of computer with the experience of designers and the ability of comprehensive analysis, greatly improving the design speed and design of printed circuit board quality. This article describes a simple, convenient and powerful use of the printing plate CAD software EDPCB, it has a good user interface, all operations are carried out on the keyboard, two-layer wiring, the dot matrix printer can output positive / Anti-photo version, solder mask. The main technical indicators are as follows: Maximum design layout size: 508mm × 406mm two connection width: 0.38mm, 1.27mm pad diameter: 1.96mm