The QR code is a product of modern information, which includes a wide information content, available for mobile clients, 3C electronic product information, commodity traceability systems, and more. As an important component of the electronic product, the usage rate of the PCB board is greatly improved, which is more stringent for product traceability, but to carry out QR code marking on this meager component, then you need to use To the laser marking machine, can the laser marking machine do more precise?
Under normal use, the PCB board has an irreversible effect by using the two-dimensional code of the laser mark, and cannot be tampered. If there is a problem in the process of processing the PCB QR code, it can be immediately tracked to which a batch of problems will be immediately. Charge control. Each manufacturer has its own quality standards, using a laser marking machine, can achieve the retrospective of the quality, the specific process is to assign a secondary code for each PCB, ie, a thing is assigned, Bar code gun read the QR code, connect the database, information management, directly view production accuracy from the internal platform, view bad batches, timely handling and feedback.
The more smart phone products are, the more powerful functions are more and more powerful, and the more weigh the parts, the smaller the zero accessories, more and more precise, so how do you mark the QR code in that small area? The laser marking machine manufacturer also begins with the field of this industrial line, as a PCB processing manufacturer, the required mark is clear and readable, and there is no explosion point under the mirror, which will not hurt the components, the main thing is Precision machining is performed on the micro-tissue.
According to these requirements, the laser marking machine manufacturer also has developed a variety of different light source devices to match the PCB for marking, such as on the IC chip, using ultraviolet laser marking machine, on the PCB board According to the coating, CO2 marking machine, fiber marking machine, and UV marking machine, generally adopt an adjustable width fiber marking machine or an ultraviolet marking machine on the camera module. In some special applications, such as the marking on the small connecting board is generally used in the ultraviolet laser marking machine. The PCB QR code marking should be the ultraviolet laser marking machine. Its spot focus is smaller than other, more suitable for precision parts processing, and its cold light will not hurt the metabits, in the field of PCB It can be described as unique.
In a very small area in the PCB, the laser marking machine can be used to be a 31-bit QR code of 0.12×0.12mm size. In general, most of the PCBs are 2 × 2 mm or 3 × 3 mm, but according to the size of the component, the laser marking machine can help the PCB board for QR code marking.
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