How Laser Soldering Works And Why You Should Be Interested

Laser soldering is a non-contact process that eliminates the risk of marring or damaging sensitive components.  Robots are capable of producing micro-sized laser beams for otherwise difficult applications too small for iron tip soldering.  Our advanced optical technology provides a reliable solution for micro and narrow pitched parts used in high-density electronic equipment.  

The laser soldering process depends on the type of solder to be used (wire, pre-form or paste). In the case of solder wire, laser irradiation is performed in advance to the joint area (pre-heating). This is the most important process in order to wet and allow the solder to flow easily when supplying the solder wire to the joint area.   

Stargate laser

In conventional laser soldering, all the laser power is used as a base to set the required temperature.
However, the type of material and components around the soldering item may cause a variation in
the temperature. Thus, causing unexpected results such as overheating or insufficient heating of the
solder and consequently, damaging the product. Thanks to the development of the STAR GATE
coaxial laser head, the new generation of laser soldering, this deficiency has been overcome.

Slit Beam: Laser-Shaping Technology Option

Although the laser beam shape is generally circular, this originally developed SLIT plate (metal plate with a hole) enables virtually any type of laser beam shape. Since the beam shape can be conformed to the part shape, damage to adjacent parts is greatly reduced.

Solder Paste Dispensers

Achieve ultimate small volume stability with precision nozzels. Dispensing technology provides an alternative to the classic wire feed approach. Dispensers allow for a precise amount of solder paste to be evenly distributed in micro amounts. This approach eliminates waste and increases cost effectiveness.


The type of lens to form a laser beam is composed of two components, the “Input lens” and “Output lens”. With the combination of these lenses, over 100 diameter variations can be achieved.

The TCU-1000 Optional Unit

This non-contact radiation thermometer measures the temperature of the soldering point in real time. Select it from the accessories listing below to learn more about how it can keep your laser machine stable.