What are the smt patch repair methods

soldering tools

There are two methods for manual repair soldering: one is contact soldering repair, and the other is heated gas soldering repair. The method of contact soldering repair is the process of joining two or more joints together by filling the heated soldering iron tip with tin material. In the process of manual soldering maintenance, flux and solder paste are required, and the main purpose is to prevent the solder, component pins, pads, etc. from being rapidly oxidized. In addition to the main tools and materials, manual maintenance also requires some auxiliary tools and materials, such as a camera, a tin suction tape for cleaning the pads, a magnifying glass for checking the quality, etc.

smt patch repair method:

The first is to use a soldering iron to repair, clamp it with pliers on one side of the IC to prevent its displacement, place the heated soldering iron tip on the pins of the patch, and the heat of the soldering iron tip will be transferred to each pin after melting superior.

The second: use a hot air gun to blow soldering. When all the pins are melted, we remove the IC, and then use the solder tape to clean up the excess tin material. In the process of smt patch repair, manual operation is much easier than machine disassembly, and this method can also ensure that the loss of components is lower. Not only that, because it is manual maintenance, so, based on experience and professional knowledge, we can better judge the maintenance situation, make appropriate repairs according to the specific situation, and reduce losses. In the manual maintenance process, after the solder has melted, use the tools in your hand to remove the protective glue and then remove the components.