Among all kinds of soldering methods, iron tip/contact soldering is the method with the longest history, and is also technically the most established.

Laser soldering is garnering attention as a new method. However, the heat application principle and other aspects differ from contact soldering. Therefore, tip soldering cannot be simply replaced to laser soldering.

Soldering conventionally involves bonding solder (tin) with a metallic substrate. Ultrasonic soldering method is an advanced way that enables solder to bond with glass or non-metallic materials.