Common problems in PCB Design (2)

Common problems in PCB Design (2)


Abuse of graphic layer

1.Some useless connections have been made on some graphic layers, such as four layers  have been designed to more than five layers cause misunderstanding.

2.When designing diagram saves trouble, take Protel software as an example to use Board layer to draw the line of each layer, and use Board layer to draw the marking line, so when carrying on the light drawing data, because the Board layer is not selected, the line is missed and the circuit is broken. Or because of the selection of Board layer marking lines and short-circuit, so design to maintain the integrity and clarity of the graphics layer.

3.Contrary to the conventional design, such as component surface design in Bottom layer, welding joint design in Top. cause inconvenience.