Raised tip refers to the protrusion of thesolder tip on the solder joint of the copper foil circuit terminal of thecircuit board, and there is an obvious tip, which is called solder jointtipping.

What are the factors that cause solderjoint tipping?

1. It is possible that during manualsoldering, the soldering iron tip on the operator's hand is removed prematurelywhen the solder is not completely melted and fixed.

2. The temperature is too low duringsoldering. But most of the reasons are that the flame iron head is removed toolate, the welding time is too long, and the flux is vaporized, that is to say,the drawing tip is related to temperature and operation.