A Brief Discussion: Is it true that the more active solder paste is, the better?

Recently, many people have been asking whether the activity of the solder paste is too low if it is not soldered. Some people also say that the more activity it has, the better. Is it sometimes because of insufficient activity that solder paste doesn't coat? In this case, one would feelSolder pasteIs it true that the higher the activity, the better? Next, let the solder paste manufacturer analyze it for you:

Everyone knows that there are many additives in solder paste, among which one is called an active agent. The active agent is the key solvent that determines the activity of the solder paste. The activity level of the solder paste is related to the amount of active agent added. Generally, if the tin coating ability is poor, it is because the activity is too low. Perhaps some people would say, "Then just add a little more activator. This way, the solder paste will definitely work well!" In fact, this is wrong.

Active agents have a relatively corrosive and irritating effect. If too much active agent is added to the solder paste, even ifSMTWhen reflow the printed surface mount, tinning is expected to have a better effect, but it is correctPCBThe board has a relatively corrosive and irritating hazard, which can damage the path and thereby reduce itPCBThe service life is not worth it.

Therefore, the activity of solder paste is not the higher the better; rather, a moderate level of activity is sufficient. In addition, the same goes for other additives in solder paste. One should not blindly pursue an effect by adding too much, while ignoring the adverse effects brought by excessive addition.

To sum up, everyone still needs to be quite cautious during the operation process. Generally, a moderate amount of addition is sufficient. If you have any further questions, please continue to follow the online message of JJY Solder Paste Factory for more knowledge about soldering and interact with us.