In the current PCB circuit board cutting market, the requirements for the quality of PCB products are getting higher and higher, especially for PCBA products and micro PCB products containing components, the quality requirements for PCB circuit boards are very high, and the classification of PCB circuit boards is very high. Board requirements are also getting higher and higher. Common PCB sub-board equipment is mainly processed by cutting tools, milling cutters, gong knives, etc., which have defects such as dust, burrs, and stress, which have a great impact on the PCB circuit boards with components and components. The chip method is difficult to adapt to new application requirements. On this basis, the laser cutting PCB process is used to provide a new solution for PCB slicing processing.


PCB printed circuit board laser cutting


The advantages of laser cutting PCB are small cutting gap, high precision, and the heat affected range is less than 0.1mm. Compared with the traditional PCB cutting process, laser cutting PCB has the advantages of no dust, no stress, no burr, and smooth cutting edge. Is the laser cutting PCB equipment mature now? Can it be used on a large scale? From the point of view of Laise Laser, the current laser cutting PCB equipment is not fully mature, mainly because the defects of the laser cutting PCB equipment are very obvious.


The defect of laser cutting PCB equipment is that the cutting speed is low, the thicker the material, the lower the cutting speed, and the processing speed of different materials will be different. Take FR4 material as an example, 1.6mm double-sided v-groove board, 15W UV laser cutting The speed of the machine is less than 20mm/s. Compared with the traditional processing method, it cannot meet the speed requirements of the milling cutter to cut the PCB equipment. In addition, cutting thicker materials, such as PCBs above 1mm, will produce a carbonization effect, which is also the reason why many PCB processing manufacturers cannot accept it.


That laser cutting PCB has these disadvantages, does anyone still use it? At present, there are some shipments of laser cutting PCB equipment from Lesser, but the shipments are not large. They are mainly used by manufacturers with relatively high requirements such as mobile phone PCBs, automotive PCBs, and medical PCBs. The surface of laser cutting PCBs is smooth and free of burrs. No stress is used by some manufacturers with high product quality requirements.


To sum up, the relatively high cost and low speed of laser cutting PCB printed circuit board equipment on the market have not yet matured the market, but laser technology is constantly improving. The higher the laser power, the better the beam quality. The high frequency and high pulse energy required for laser cutting printed circuit boards is also getting better and better, and the cost of equipment will also be lower and lower. At this stage, better high-frequency high-pulse energy is prepared for the maturity of the market.