With the continuous advancement of the industry 4.0 era, the green laser pointer is also achieving breakthroughs, gradually replacing the traditional silk screen processing, bringing new vitality to the manufacturing industry in a more convenient way.
Known as the "mother of electronic systems products," PCBs are one of the most important components in the contemporary electronic components industry and are used in almost all electronic products.
With the continuous development of smart phone technology and wearable electronic technology, intelligent, thin and light, and miniaturization have become mainstream. Manufacturers are increasingly demanding the production of PCB circuit boards in these electronic products. In order to better realize the quality information management and control of products, traceability systems such as marking characters, barcodes, and QR codes on the PCB have emerged.
Conventional screen printing uses a well-made graphic screen to transmit character ink from a portion of the mesh of the screen and to print on the surface of the board. The rest of the mesh on the screen will be blocked, not through the ink, only blank on the surface of the board, the ink under the leak will form the text, logo, pattern and so on. This kind of processing method is relatively cheap and the processing speed is fast, but there are shortcomings such as rough marking effect, easy to fall off the logo, failure to mark the PCB board with small web surface, and certain toxicity of chemical raw materials.
The green laser pointer uses a high-energy-density laser to locally illuminate the PCB to vaporize or discolor the surface material, leaving a permanent mark. This non-contact machining marks very clear two-dimensional codes on very small webs, ensuring high precision while maintaining high quality. At the same time, the laser marking will not wear due to high and low temperature, acid and alkali changes and external friction, and no chemical assistance is required, which has no negative effect on personnel safety and environment.
PCB-specific laser marking machine has better precision and flexibility, can make up for the shortcomings of silk screen processing, greatly improve production efficiency and yield, reduce costs and reduce pollution. The green laser pointer has been widely used in many fields such as digital products, wearable devices, and automotive circuit boards.