After the solder paste soldering is completed, the edges are uneven, there are burrs or stains on the surface?

If you find that the edges of the solder paste are uneven, there are burrs or stains on the surface after the solder paste soldering is completed, don't worry. Here are the solutions,Now, let's have the solder paste manufacturer explain it to you

First, let's analyze the root cause of this phenomenon:

Note:PCBAfter cleaning, it should be blown through with an air gun because there are many invisible tin balls stuck to the naked eyePCBIn the crevice.

Generally, to solve a problem, one must first analyze where the source of the problem lies and why there are burrs?It's possible.Solder pasteIf the viscosity is too low, it may also be caused by the overly rough wall of the steel mesh used for welding. At this time, it is better to first check whether the wall of the steel mesh is polished well, and then re-perform the welding operation. If you have any questions, please feel free to consult us.