日本語
中文
Deutsch
EspañolLaser Soldering
How Deos Laser Soldering Work?
Laser soldering is a non-contact soldering process that uses a focused laser beam to deliver precise, selective heating to the solder joint. This controlled surface-heating method ensures stable results with minimal thermal impact. It is widely used in automotive, medical, and industrial applications where high reliability and repeatability are required.
What is Laser Soldering? : Basics of Laser Soldering
Steve, a “virtual” employee of Japan Unix, explains the Laser soldering robots!
Robotic laser soldering is a soldering method that uses a laser as a heat source.
So what process is used for soldering?
Laser Soldering Process
The laser soldering process follows the same four basic steps as conventional soldering: preheating, solder supply, post-heating, and cooling. While the heating principle differs, the fundamental workflow remains consistent, ensuring stable wetting and reliable joint formation across applications.
Advantages of Laser Soldering
Laser Soldering Process
Less Damage
Contactless heating reduces mechanical stress on parts and minimizes the risk of pad lift or component damage during soldering.
High Precision Soldering
Selective heat input targets only the joint area, supporting fine-pitch components and densely populated assemblies with stable results.
High Repeatability
Beam control and feedback help keep every joint within a consistent thermal window, improving yield and solder joint consistency.
Easy Maintenance
With no iron tip contact, wear parts and cleaning work are reduced, helping maintain stable quality with less downtime.
JAPAN UNIX Laser Soldering Solutions
ULD-02 Laser Soldering Unit for a New Era of Connected, Visualized Soldering
ULD-02 is a laser soldering equipment platform designed for higher-level process control, beyond “just soldering.” Enhanced traceability, temperature measurement, and control functions support connected production and clearer visibility of each joint’s conditions—helping standardize outcomes across operators, shifts, and sites.
Advancing quality and innovation.
Laser soldering enables not only advanced joining, but also innovations in process control and quality management. Japan Unix integrates a high-performance laser unit, precise temperature control, and management software to deliver a complete solution—supporting consistent quality even as products become smaller and more complex.
Advanced Process Control with Thermo Pro™ and Soldering Manager
Thermo Pro™ adds temperature feedback control to standard parameters such as power and time. Combined with Soldering Manager, you can monitor conditions in real time and store data for each joint. Optional coaxial camera recording supports remote review and stronger production governance.
Optimized laser shape improves soldering efficiency! Supports both SMT and rework
Shape-optimized irradiation supports circles, ellipses, squares, rings, and more to deliver heat efficiently. Multi-φ changes spot size without Z-axis changes, helping match pad sizes quickly. Area Laser can also support localized reflow (SMT) and rework, with visualization via Thermo Pro™ and Soldering Manager.
Equipped with external editing function
Data-link communication supports external editing of soldering conditions. This helps unify interfaces across integrated lines and simplifies condition management—especially in highly automated environments where consistency and fast changeover matter.
Solder feed control is also available
The ULD-02 controller can manage solder feed together with laser control. A single controller simplifies operation and supports standardized setup—helping reduce variability when deploying laser soldering equipment across multiple production lines.
Choice of Automated Soldering Installations
Laser Soldering Automation
Japan Unix provides automated soldering solutions based on original theory and experience. Our robots and systems solve challenges like lead-free soldering, heat dissipation, and high-density PCBs.
Laser Soldering Options
Laser-Ready Soldering Robots
Reference Videos
Robotic Laser Solodering
Laser soldering irradiation scene
Assembly video of laser soldering of micro components. High speed and high precision soldering operation can be seen.
High power laser soldering
High Power Laser vs. Normal Laser Comparison Video
Laser soldering is now used not only for micro components and high-precision parts, but also for parts that require high heat capacity, such as automotive components.
