PCB boards are an integral part of modern electronic devices, and they exist in a variety of shapes and sizes to meet the requirements of different applications. Whether it's consumer electronics, communications equipment, medical devices or industrial control systems, PCBs are needed to support and connect electronic components so they work together.
In order to better control the quality of the product, the need to record the relevant production information, to facilitate the full traceability of electronic products and quality control, its products within the structure - PCB marking information needs to be clear, and in the production at the same time to improve productivity, reduce costs, reduce pollution, to adapt to the direction of the development of multi-species, small batch production. In order to better realize the many PCB board in the product production process control, marking information on the PCB board, such as production batch, characters, bar codes and other information to become the industry's development trend. Laser marking processing as a high-tech means of marking processing, has the advantages of traditional processing methods can not be compared with the traditional processing methods is different, laser processing is the use of high-energy density laser on the workpiece for local irradiation, so that the surface material vaporization or color changes in the chemical reaction, so as to leave a permanent marking of a marking method.
Laser marking can type a variety of words, symbols and patterns, etc., the character size can be from millimeters to micron scale. This can be effective anti-counterfeiting products. For the PCB industry now, is undoubtedly one of the optimal processing solutions, whether it is the processing of fine, or processing efficiency, as well as the effect of processing, are fully meet the needs of PCB marking processing now.
Traditional PCB cutting technology compared to laser processing technology can be a one-time molding. With no burr, high precision, high speed, small cutting gap, high precision, small heat affected zone and other advantages. Compared with the traditional circuit board cutting process, circuit board cutting is dust-free, stress-free, burr-free, and the cutting edge is smooth and neat. In particular, the processing of printed circuit boards with welded parts will not damage the parts, which has become the choice of many companies.
Specifically, mainly in the following applications:
Cutting PCB boards: PCBs usually need to be cut from a large plate into the desired size and shape. Laser cutting is efficient in achieving precise cuts, ensuring the size and edge quality of the PCB.
Creating circuit patterns: During PCB manufacturing, laser cutting can be used to remove unwanted copper foil to create circuit patterns. This method is more precise than traditional chemical etching and produces no waste liquid.
Via Manufacturing: Microvias, blind vias and through-holes are often needed in PCB manufacturing to connect different layers of circuitry. Laser cutting can be used to create these holes, ensuring accuracy and quality.
Creating Complex Shapes: Laser cutting can be used to cut PCB materials to create complex shapes such as curves, bevels, or non-conventional shapes for circuit boards. This helps to accommodate the design requirements of specific applications.
Fixing PCB Errors: If an error is found or a correction is needed during the PCB manufacturing process, laser cutting can be used to remove or modify the incorrect circuit pattern without the need to remanufacture the entire PCB.
Overall, the use of lasers in PCBs plays an important role in providing high precision, efficiency, and customization for a wide range of electronic device manufacturing needs.
Tianjin Meiman is a leading supplier of lasers for PCB manufacturing including dicing, board cutting, drilling, repairing and marking. The lasers are designed to withstand the rigors of a wide range of PCB applications.