1. Soldering is best with rosin, rosin oil or acid-free flux. Do not use acid flux, otherwise it will corrode the welding area.
2. Before soldering, scrape the place to be soldered with a knife to make it show metallic luster, apply flux, and then apply a layer of solder.
3. The electric soldering iron should have enough heat during welding to ensure the welding quality and prevent false welding and long-term desoldering.
4. The soldering iron should not stay in the welding place for too long.
5. After the soldering iron leaves the welding place, the parts to be welded cannot be moved immediately, otherwise the parts will be easily desoldered because the solder has not yet solidified.
6. It is best to twist and then tin the wiring of the connected components.
7. When soldering transistors and other devices that are afraid of high temperature, it is best to use small flat nose pliers or tweezers to clamp the pins of the transistors, and control the time when soldering.
8. It is best to use thin low-temperature welding wire for the welding of semiconductor components, and the welding time should be short.
