How should customers choose the appropriate solder paste?

In the face of various industrial welding and electronic demands, how exactly should customers choose the right solder paste? From which aspects should we focus on making a choice? JJYSolder paste manufacturerLet me explain the game to you all, so that you can have a reference when choosing solder paste.

In fact, choosing the right solder paste mainly requires meeting the following requirements:

1The solder joints are fully tinned

This is90%For the requirements raised by the above-mentioned guests, to ensure that the solder joints are fully tinned, solder paste with appropriate activity and good wettability must be selected.

2There is no residue or whitening on the board surface

In the face of such requirements from customers, most manufacturers will choose no-cleaning solder paste. If the post-soldering whitening is indeed caused by the board issue, the post-soldering cleaning method can be adopted to solve the problem.

３Poor conditions such as Wuxi beads, continuous soldering or false soldering, and missed soldering

These conditions are relatively typical defects in electronic soldering, and generally, manufacturers will conduct relatively strict inspections and controls on them. To ensure good quality in production, the correct selection of solder paste is crucial. This is because choosing solder paste with appropriate activity and good wetting performance, combined with a good process, is the fundamental factor to avoid these defects.

４It has no leakage or other poor electrical performance

If the customer has such requirements, it is best not to choose solder paste with strong activity or high halogen content. If the condition of the board is poor and such flux must be used, we can solve the problem by cleaning.

To sum up, how exactly should one choose the right oneSolder pasteWe have a general understanding. Besides meeting the above conditions, another important point for a suitable solder paste is that it should have a high enough cost performance. Only in this way can people's demands for the cost-effectiveness of solder paste be met.