In the PCB board design, the layout is a very important part. System layout is good or bad will directly affect the wiring effect, rational layout can have the following advantages:
Space saving circuit board to reduce the cost;
· Make the smaller size of the system;
· Improve the reliability of the system.
Bad PCB layout have the opposite effect, reasonable layout is the basis of system design, PCB design is the first step to success.
In general, the way the PCB layout, there are two, one is an interactive PCB board layout, and the other one is automatically PCB board layout. In practical applications, the basis may be used for automatically adjusting the layout of the interactive layout in the layout may be redistributed according to the situation door circuit traces. For example, two gates can be exchanged, making it the best layout for easy wiring.
A successful product or not, it is necessary to pay attention to the intrinsic quality, and second, taking into account the overall appearance, both of which can be more perfect that the product is successful. Taking into account the overall appearance of the PCB layout, in a PCB board layout elements required to be balanced, density and orderly.
Another important issue is the PCB board layout dimensions, PCB size drawings to scale production and processing phases
Character, in line with PCB manufacturing process requirements and positioning mark.
Board member whether the conflict in two-dimensional, three-dimensional space, but also must be considered, such as thermal elements and hair
Is the appropriate distance between the heating element, if too close, it is possible to burn the temperature sensitive device.
Board layout but also add some power device heat sink, heat sink size should be considered.
