FreePCB

制造商：Allan Wright
FreePCB是一个免费的、开源的微软窗口PCB编辑器，在GNU通用公共许可证下发布。它被设计为易于学习和使用，但能够进行专业质量的工作。

Introduction:

FreePCB is a free, open-source PCB editor for Microsoft Windows, released under the GNU General Public License. It was designed to be easy to learn and easy to use, yet capable of professional-quality work. It does not have a built-in autorouter, but it can use the FreeRoute web-based autorouter at www.freerouting.net. Some of its features are:

1 to 16 copper layers
Board size up to 60 inches by 60 inches
Uses English or metric units (i.e. mils or mm) for most functions.
Footprint libraries courtesy of Ivex Design International, PCB Matrix and the IPC.
Copper fill areas
Footprint Wizard and Footprint Editor for creating or modifying footprints
Imports and exports PADS-PCB netlists
Exports extended Gerber files (RS274X) and Excellon drill files
Design rule checker
Autosave
The layout for a small PCB is shown in the screenshot below.