Application of laser soldering technology in camera modules

　　The application of laser soldering technology in camera modules is mainly reflected in its ability to meet the needs of miniaturization and precision of electronic equipment. The camera module contains a variety of micro components, such as image sensors, lens components and circuit boards. The connections between these components have extremely high requirements on the stability of electrical performance and structural strength.

　　In practical applications, laser soldering technology is not only used for welding camera modules, but is also widely used in many electronic assembly fields such as mobile phone cameras, automotive electronics, current sensors, and photovoltaic new energy fields. The advantage of this technology is that it can provide higher welding accuracy and efficiency while reducing the thermal impact on the product itself, thereby protecting the integrity and functionality of electronic components. Its advantages are:

　　1. High precision: Traditional soldering technology is difficult to achieve the required accuracy when faced with solder joints with tiny spacing, while laser soldering can achieve precise control at the micron level and is suitable for solder joints with extremely small spacing, which satisfies the needs of camera models. Welding requirements for precision components within the group.

　　2. Non-contact welding: Laser welding is a non-contact process that does not cause thermal damage to surrounding sensitive components and reduces the heat-affected zone. This is especially important for camera modules with high integration and compact space.

　　3. Stable welding quality: Laser welding can provide consistent welding energy distribution, ensuring the consistency and reliability of each weld, helping to improve the overall product quality and long-term stability.

　　4. Strong adaptability: Laser welding can handle workpieces with complex surfaces and is not easy to interfere with components on the surface of the workpiece, including different metals and their alloys, and is suitable for diverse material combinations in camera modules.

　　5. High degree of automation: Combined with the CCD visual positioning system, the laser soldering machine can automatically identify and accurately locate welding points, greatly improving production efficiency and welding accuracy, reducing human errors, and is suitable for mass production.

　　6. Fast heating speed: Laser soldering uses a high-density energy laser beam to instantly generate high temperatures and quickly melt the pre-placed tin material, thereby quickly completing the welding process.

　　7. Low cost of consumables: Since no soldering iron tip is used, laser welding will not cause damage to the soldering iron tip, thus reducing production costs.

　　Specific application examples of laser soldering:

　　Welding of precision components: For example, when fixing an image sensor to a substrate, or connecting small connecting wires to a circuit board, laser soldering can provide reliable welding solutions.

　　FPC (flexible printed circuit board) connection: The FPC commonly used in camera modules is soft and thin. Using laser welding can avoid thermal stress damage and ensure the reliability of the connection.

　　Lens component fixation: Even tiny lens components need to be fixed accurately. Laser welding can ensure the accuracy of the lens position and avoid affecting the optical performance.

　　The laser soldering process plays a key role in camera module manufacturing. It not only improves production efficiency and product quality, but also promotes the development of camera modules towards higher integration and smaller size.

　　Features of Songsheng Optoelectronic Laser Constant Temperature Soldering System:

　　The laser processing accuracy is high, the minimum spot diameter is 0.1mm, and it can realize the welding of micro-pitch mounting devices and chip parts;

　　Short-term local heating has the least thermal impact on the substrate and surrounding components. Different heating specifications can be implemented according to the type of component leads to obtain consistent welding quality;

　　PID online temperature adjustment feedback system can effectively realize constant temperature welding and ensure welding yield and precision;

　　The laser processing accuracy is high, the laser spot can reach the micron level, the processing time/power program control, the processing accuracy is much higher than that of traditional soldering irons. Can weld in spaces below 1mm;

　　Multiple coaxial optical paths, CCD positioning, what you see is what you get, no need to repeatedly correct visual positioning;

　　Non-contact processing, no stress caused by contact welding, no static electricity;

　　Laser is green energy, the cleanest processing method, no consumables, simple maintenance, and easy to operate;

　　When performing lead-free soldering, there will be no solder joint cracks;

　　The above is the specific content of Wuhan Songsheng Optoelectronics on the application of laser soldering technology in camera modules. If you have any questions, please call or add WeChat for details. We will continue to update you with more relevant instructions. You can follow our website to learn more. More information.