Understanding of Multi-Layer PCB Design

　　Printed circuit board (PCB), these devices will be printed with tiny line (micron size) the number of electrical components to form a self-contained structure, the task can be electric. They are generally large companies to print the board of directors sent by the client to a specific design and manufacturing. Design process is usually complex and require the use of computer-aided design packages (CAD) and PCB specification and construction knowledge. Today, the board and the conductive layer is common, because they make the whole circuit board design is simple.
　　A printed circuit board design in the CAD package. While at home a simple printed circuit boards, multilayer circuit board has a very complex manufacturing process, the need to establish an external company. Printed circuit board manufacturers need a very specific format. Generally four separate design layer is necessary. 0 layer includes a circuit board outline. 1 layer, including the design of the first set of copper track. Layer 2 copper tracks, including the second set of designs. Layer 3 holes.
　　2 (Multi-Layer PCB Design) choose to print the printed circuit board substrate. The most common material is FR - 4, which is a type of glass fiber. Cheaper options, including FR - 2, which is a lower grade material, made ??of impregnated paper.
　　3 Select the "weight of copper." This is a board thickness of the copper track. Copper thickness of 17.5 microns will be every 0.5 ounces.
　　4 Save the file as "Garbo" design. Its common to save each layer to a separate Gerber files. This allows manufacturers to more easily identify the different functions, such as copper from the hole,. Save each layer, right, because manufacturers usually send a design, if it in the wrong format.
　　5 to create a simple text file, Gerber files to explain the contents of each manufacturer.
　　6 (Multi-Layer PCB Design) to find a suitable manufacturer, and e - mail and explain the content and text files Gerber files.

Multi-Layer PCB Design