First of all, why should the PCB be flat?
If the car on the circuit board assembly line can lead to an inaccurate position, or the components cannot be inserted into the hole, and cannot be installed for solder, even up to the damage of the machine. If PCB Assembly after bending, it is very difficult to cut the pin and neat components. Clustered PCB Boards cannot be packed in boxes, so very annoying plate bending problems. So far, the printed circuit board installed on the surface timing and chips, there will be more rigid PCB assembly plates flatness requirements.
Second, how to avoid PCB warp in the manufacturing process
Here are 6 points for your reference:
- PCB design: we should pay attention to PCB design. In this case, it’s strongly recommended to hire a PCB Assembly Services.
- The material should be balanced in layers, for example, 6 layers board, PP thickness, and quantity should be in 1 to 2 l and l 5-6 is the same, easy to cause bending.
- Using the same manufacture and laminate core.
- Circuit design area should be close to the top and bottom side. If the top side with a large copper area,