In the process of electronic production, the basic work is to make the circuit board, the following points are to make PCB board needs special attention:

1. when placing components, first consider the size of components ( height and area ), and the relative position of components, to ensure the circuit board electrical performance and production and installation feasibility and convenience.

2, on the premise of ensuring that the above principles can reflect, appropriate to modify the placement of the device, make the device more tidy and beautiful, such as the same device neatly placed, consistent direction.

3, considering the overall image of the board, and wiring is difficult, it takes time to think about the layout of the components.

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4, when wiring need to set the size of the pad and the actual device, the size of the power line, signal line and the width of the ground line to take appropriate.

5. when defining the package of components, the schematic diagram should be defined according to the actual size of the components. if not in the library, you need to draw one yourself.