Application Prospects of Automated Laser Soldering Technology

Application Prospects of Automated Laser Soldering Technology

Laser heating is a technique that utilizes laser energy to heat materials. By irradiating the material's surface with a laser beam, rapid and highly localized heating can be achieved. The laser heating process involves phenomena such as reflection, absorption, and transmission, ultimately leading to a rise in material temperature—even causing melting, vaporization, or plasma formation. It converts light energy into thermal energy through the high energy density of the laser beam, enabling precise heating of the target material.

Compared to conventional heating methods, this approach offers faster heating speeds and more precise control over the heated area.

Laser Solder Wire Welding Process Diagram

Compared to other welding methods, laser soldering technology offers distinct advantages. First, laser welding enables non-contact soldering, eliminating mechanical stress that may occur in traditional welding processes, thereby improving weld quality. Second, laser welding provides high precision and flexibility, allowing for accurate soldering of micro-components. Meanwhile, the rapid movement of the laser beam significantly increases welding speed. Additionally, laser welding can be applied to high-melting-point metals, ceramics, and other special materials, further expanding its application scope.

Regarding the future applications of automated laser soldering technology, we anticipate it will play a crucial role across various industries. For instance, as electronic devices become increasingly miniaturized and complex, the electronics manufacturing sector demands higher-performance soldering solutions. Thanks to its high precision and efficiency, automated laser soldering will see widespread adoption in integrated circuits (ICs), semiconductors, micro-sensors, and other advanced fields.

Laser Soldering Sample Demonstrations Across Industries

In the automotive manufacturing sector, the rapid development of new energy vehicles and smart cars has been driving increasingly higher demands for welding processes. Laser automated soldering technology not only ensures welding quality but also enhances production efficiency and reduces manufacturing costs, making it highly promising for automotive applications.

Moreover, laser automated soldering technology is also suitable for industries such as aerospace, medical devices, and precision instruments, where product quality and reliability requirements are exceptionally stringent. With its high precision and efficiency, this technology is well-equipped to meet the specialized demands of these fields.

Laser Constant-Temperature Soldering System Workflow

（The illustration shows the following text:    The computer software sets the welding parameters and issues the welding command. The laser module emits a laser beam, which processes the product through a semiconductor constant-temperature coaxial monitoring welding head. An infrared thermometer rapidly captures the temperature of the welding point and feeds the signal back to the laser power supply controller. The controller performs high-speed PID calculations to automatically adjust the laser pump source's power, ensuring constant-temperature welding at the processing point.）

The Songsheng Optoelectronics Laser Soldering System consists of a multi-axis servo module, real-time temperature feedback system, CCD coaxial alignment system, and semiconductor laser. Through years of research in welding processes, Songsheng Optoelectronics has independently developed intelligent soft soldering software that supports importing multiple file formats. Featuring a proprietary PID online temperature regulation and feedback system, it ensures precise constant-temperature soldering, guaranteeing high yield rates and accuracy.

This product offers wide applicability, suitable for both inline production and standalone processing, with the following key advantages:

1. Non-contact soldering eliminates mechanical stress damage and minimizes thermal effects.

2. Multi-axis intelligent work platform (optional) adapts to complex and precision soldering processes.

3. Coaxial CCD imaging & real-time monitoring system ensures clear visibility of solder joints, automatic alignment correction, and guarantees machining accuracy for automated production.

4. Proprietary temperature feedback system directly controls solder joint temperature with real-time temperature curve display, ensuring high yield rates.

5. Fully coaxial integration of laser, CCD, temperature measurement, and guiding light — solving the industry challenge of multi-optical path alignment while eliminating complex calibration.

6. Achieves 99% yield rate with a minimum solder joint diameter of 0.2mm and ultra-fast single-point soldering.

7. X/Y/Z-axis configurability supports welding of diverse components, enabling broader applications.