The application and development direction of laser marking in the field of electronics

In today's fast-paced world, the demand for high-quality laser marking has never been higher. China stands as a global leader in the production of various electronic products such as televisions, recorders, VCD players, phones, electronic watches, calculators, refrigerators, air conditioners, and more. It also plays a major role in manufacturing items like program-controlled switches, PCs, mobile phones, floppy drives, displays, computer boards, and mice. This extensive range of electronics, combined with standardized manufacturing processes, creates significant opportunities for laser marking technology. Laser marking is a versatile process that can be categorized into two main types: heat processing and cold processing. In heat processing, a highly concentrated laser beam is directed onto the material’s surface, causing it to absorb energy and undergo thermal changes such as melting, ablation, or evaporation. On the other hand, cold processing uses ultraviolet photons with high energy to break chemical bonds without generating heat. This method is especially beneficial in sensitive industries like electronics, where minimizing thermal damage is crucial. For example, excimer lasers are often used to create precise trenches on semiconductor substrates without affecting the surrounding material. One of the key advantages of laser marking is its ability to permanently mark a wide variety of materials, including metals, glass, ceramics, plastics, and leather. The process doesn’t cause mechanical deformation or surface corrosion, making it ideal for delicate components like integrated circuits, resistors, capacitors, and diodes. Laser-printed labels are now widely used in offices, supermarkets, and factories. Their main applications include postal, trademark, and barcode labels, which add value to products and help businesses stand out in competitive markets. According to Steve Brocker, a sales manager at Western States Envelope, focusing on existing customers is essential when entering the laser label market. He suggests starting by understanding how current clients print their trademarks and helping them leverage the benefits of laser printing. Many industry leaders agree that it's difficult to enter a field without prior experience in laser tagging, so improving existing systems is key. Companies should first identify customer needs, assess business directions, and determine how to solve potential issues before targeting manufacturers with high barcode demand. When evaluating whether a customer can benefit from barcodes, one important factor is the volume of printed marks. If the quantity is low, thermal transfer might be more suitable, while laser labeling is ideal for mass production. For those printing less than one million trademarks annually, a laser solution can be effective. For high-volume users, continuous transfer single-jet lasers are recommended. Beyond barcodes, laser labels also offer value in postal and office applications. Printing two- or four-color icons on laser labels can enhance product appeal and reduce costs. For instance, instead of printing colors directly on envelopes, companies can use laser labels with color logos, saving money and improving efficiency. Once an order is secured, the next step is designing a custom trademark that meets the client's specific needs. Whether they're using barcodes or other types of labels, understanding their requirements is crucial. Products like CD-R and CD-RW are commonly used in office settings for data storage and multimedia presentations. Offering two- or four-color laser labels for these purposes can provide added value. For customers using dot matrix printers, especially those printing barcodes, there's a growing opportunity to transition to laser printing. Laser printers produce clearer images, resulting in more accurate scans and a more professional look. Additionally, laser-printed labels can be die-cut into various shapes, offering greater flexibility and identity. Finally, choosing the right adhesive is important. Laser printers typically use hot melt adhesives heated to 250°C–300°C, ensuring strong bonding without damaging the label. With many adhesive options available, laser-printed labels are set to become a major trend in the market.

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