What problems will be encountered in subsequent PCB processing

When the PCB is finished, it must be mainly tested. Mark the broken plate of the short-circuit broken wire, or SMT may fix you later. In the case of Mosaic, the same location of the bad packaging together. Next is SMT welding commonly, want to look for the manufacturer that stick piece ability is strong, craft is stable to do, do not look for small factory in order to save 10% charge, otherwise very likely bring 100 times thousand times of loss, especially for BGA, do not let the manufacturer that has not done before take you as a guinea pig. The next step is to weld the plug-in components, possibly wave soldering or back welding. Above two steps of welding must pay attention to the lead - free process of choice, do not be wrong. Finally, test the assembly packaging!Professional SMT fab is necessary. ALSO you can choose one-step fab. PCB and PCBA. This is Very normal in China. Like Shunyijie and ALLPCB. Shun is a big OM company in Shenzheng, Professional and good service. ALLPCB also very reliable, has advance machain and best price and topspeed.

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