What is a cold solder joint?

A cold solder joint is a defect in the soldering process where the solder does not properly adhere to the metal components being joined. This can be caused by a variety of factors, including insufficient heat, improper cleaning of the surfaces being soldered, or the use of low-quality solder.

Cold solder joints can result in poor electrical connections, which can lead to malfunctions or failures in electronic devices. They may also be more prone to breaking or coming loose over time.

To prevent cold solder joints, it is important to ensure that the surfaces being soldered are clean and free of any contaminants, use the correct temperature and soldering technique, and use high-quality solder and flux. It is also important to inspect connections after soldering to ensure that they are properly formed and secure.