Fine cutting of wearable device circuit boards, RFH 355nm UV laser is enough

Wearable device is a portable device that is directly worn on the human body or integrated into clothes, glasses and other carriers. It is not only hardware, but also can achieve more powerful functions through software, network, and cloud interaction. Bracelets, smart glasses and other forms appear.

With the promotion of 5G technology, stronger functions, smaller size, lighter weight, longer battery life, foldable and bendable devices have become the development direction of wearable devices. To achieve these goals means that communication, Chips such as sensors and power management are highly integrated, and their production processes are also more complex and require extremely high precision.

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Many disadvantages of traditional mechanical processing no longer meet the requirements of high-precision cutting. At present, the mainstream method is laser cutting, especially the use of ultraviolet laser equipment with smaller kerf width to cut circuit boards. With excellent performance, the 355nm ultraviolet nanosecond solid-state laser developed and produced by RFH has high power, short wavelength and narrow pulse width, which is highly suitable for the high-precision cutting requirements of such small and beautiful circuit boards.

When the 355nm UV laser is irradiated on the surface of the circuit board, it can directly destroy the chemical bonds of the material. This process is a "cold" process and does not heat the outer layer. This is also the advantage of the 355nm UV laser. At the same time, the narrow pulse width of less than 25ns, cutting The thermal effect of the circuit board is small, and it is not deformed or burned when the board is divided; high beam quality (M2<1.2), the diameter of the spot after focusing is very small, about a quarter of the diameter of the hair, and the average output is greater than 30W Power, the seam is small when cutting, the cutting edge is neat, and it is easy to complete a large number of fine circuit boards. At the same time, the integrated design makes it easy to integrate into the production line, release potential, liberate manpower, and improve profitability.

The rapid rise of wearable devices can also be extended to the field of wearable medical devices, which provides a direction for the large-scale application of wearable medical devices. Disease treatment, telerehabilitation and other functions, such as fitness trackers, heart rate monitors, health bracelets, wristband pulse oximeters, electrocardiographs, etc., profoundly affect our lives and perceptions.