355nm UV laser marking mobile phone chip, mobile phone case

Thanks to the continuous exploration and application of new materials and new processes, the speed of upgrading of smartphones is overwhelming. Among them, the laser marking process is of great significance, clean and pollution-free, with high marking clarity, never falling off, and empowering smartphones. Manufacturing quality and efficiency.

The principle of laser marking is that the high-energy density laser beam acts on the designated area of ​​the material to rapidly melt and vaporize the surface material, and the beam movement path can be set according to the computer, and finally the required graphic mark is formed. Laser marking is not limited to material planes, but can also be marked on special-shaped surfaces, and is suitable for marking on metals, plastics, glass, ceramics, polymers, wood, paper and other materials.

So, where does the smartphone use laser marking? Bearing the brunt of the marking of mobile phone casings, the use of laser marking on mobile phone casings is now a routine operation. As the most intuitive part of consumers, the mobile phone case/shape has too many expectations. For this reason, mobile phone manufacturers will mark their own brand logo and other text, numbers and other information on the back cover of the mobile phone to make it look fashionable and technological. It can also show its own brand characteristics.

There are also many places where laser marking is used inside the mobile phone. Chips and memories are scattered on the motherboard of the mobile phone. In addition to the components such as vibration motors and camera components, these components are characterized by small size and high integration. , The surface area that can be marked is small, and the ink printing method is not environmentally friendly, unrealistic, and not clear and durable enough. The spot after the laser beam is focused is very small, only a few tens of microns, which can realize high-precision, high-resolution, high-density marking in a small range, thus bringing sustainable anti-counterfeiting and traceability functions of chips, memories and other components, Technology is displayed in every square inch.

In the peripheral products of mobile phones, the traces of laser marking are also commonly seen, and the marks on accessories such as power adapters, mobile phone protective cases, data cables, Bluetooth headsets, and headphone cables can be marked with laser marking. Therefore, in the whole industry chain of mobile phone manufacturing, the laser marking process is ubiquitous, and its importance is self-evident.

NanoFilm's 355nm UV nanosecond laser is small but excellent in performance. The characteristics of high single-photon energy, easy focusing, and high material absorption rate of 355nm ultraviolet light are highly praised in the laser marking field for "cold" processing, and the heat-affected zone is very small during marking; excellent beam quality (M2 < 1.2) focusing The rear light spot is small and small, the line width is narrow when marking, and the filament-like "knife" can mark the tiny area with ease, without poison or pollution.

In addition, the 355nm ultraviolet nanosecond laser can also be used for the marking of films, plastics, glass, silicon wafers, paper and other materials.