What is the difference between fiber laser marking machine and ultraviolet laser marking machine

At present, the most widely used laser marking machine models on the market include fiber laser marking machine, ultraviolet laser marking machine, CO2 laser marking machine, these three types of models can almost cover all kinds of product marking packaging Applied.

It is also the current mainstream laser marking equipment.

Advantages of UV laser marking machine over fiber laser marking machine: In terms of wavelength, the wavelength of UV laser is shorter than that of visible light, so it is invisible to the naked eye.

Although you can't see these laser beams, it is these short waves that enable the UV laser to focus more accurately, thereby producing extremely fine circuit characteristics while maintaining excellent positioning accuracy.

There is another important factor. In addition to the low temperature of the workpiece, the high-energy photons in the ultraviolet allow the ultraviolet laser to be applied to large-scale PCB circuit board combinations, from standard materials such as FR4 to high-frequency ceramic composite materials and including polyimide Various materials such as flexible PCB materials including amines are applicable.

The absorption rate of three common PCB materials under the action of six different lasers.

The six types of lasers include excimer lasers (wavelength of 248 nm), infrared lasers (wavelength of 1064 nm), and two CO2 lasers (wavelengths of 9.4μm and 10.6μm, respectively).

Ultraviolet laser (Nd:YAG, wavelength 355nm) is a rare laser with the same absorption rate among the three materials.

The UV laser marking machine shows extremely high absorptivity when applied to resin and copper, and it also has a proper absorptivity when processing glass.

Only expensive excimer lasers (wavelength 248nm) can get better overall absorption when processing these main materials.

The difference in this material makes UV lasers the best choice for various PCB material applications in many industrial fields, from the production of the most basic circuit boards, circuit wiring, to the production of advanced technology such as pocket embedded chips. Both are universal.

The computer system of the UV laser marking machine directly goes from the computer-aided design data to the processing circuit board, which means that there is no need for any middleman in the circuit board production process.

Coupled with the precise focusing ability of ultraviolet light, the ultraviolet laser system can implement very characteristic schemes and repeat positioning.

It can be said that the positioning is accurate, which is also one of the must requirements of the circuit board industry.

It is especially important to choose a laser with high stability. It is important to pay attention to whether the supplier company has a certain scale. You can count on quality control in a factory with three or five people, which is unrealistic, so the quality of small companies is not good, and the price of large companies Not high, it is best to choose a medium-sized company with certain experience and the price is not too outrageous. The above is a personal opinion, for reference only.

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