Soldering with an iron tip has the longest history and is the most established technology in terms of reliability. However, modern technology requires a deeper understanding of soldering theory and new techniques to handle difficult applications

While laser soldering is gaining popularity as a new method, it cannot be used as a direct substitute for iron soldering, as the heating process varies. To fully benefit from laser soldering, it is vital to understand its characteristics and the appropriate handling techniques, otherwise its advantages may be lost. This article outlines the fundamental principles of laser soldering and the necessary precautions for its optimal use.

Conventional soldering basically involves bonding solder (tin) with a metallic substrate. Ultrasonic is an advanced technique that enables solder to bond with glass or non-metallic materials.
As renewable energy sources are attaining widespread use around the world.