Marking application difference between MOPA laser and Q-switched laser

Marking application difference between MOPA laser and Q-switched laser

1. Surface stripping application of alumina sheet

Today's electronic products are becoming thinner and lighter. Many mobile phones, tablets, and computers use thin and light aluminum oxide as the product shell. Use Q-switched laser to mark conductive positions on thin aluminum plates

At this time, it is easy to cause deformation of the material and produce "convex hull" on the back, which directly affects the aesthetics of the appearance. The use of the MOPA laser’s smaller pulse width parameters can make the material not easy to deform, and the shading

Also more delicate and brighter. This is because the MOPA laser uses a small pulse width parameter to make the laser stay on the material shorter, and it has enough energy to remove the anode layer.

Therefore, MOPA laser is a better choice for the processing of stripping anode on the surface of thin aluminum oxide plate.

2. Anodized aluminum blackening application

Using a laser to mark black trademarks, models, texts, etc. on the surface of anodized aluminum materials, this application has gradually been used by Apple, Huawei, ZTE, Lenovo, Meizu, etc.

Sub-manufacturers are widely used on the shells of electronic products to mark trademarks and models with black marks. For such applications, only MOPA lasers can process them at present. due to

MOPA laser has a wide pulse width and pulse frequency adjustment range. Using narrow pulse width and high frequency parameters can mark the surface of the material with a black effect, through different parameter combinations
You can also mark the effect of different gray levels.

3. Electronics, semiconductor, ITO precision processing applications

In precision processing such as electronics, semiconductors, and ITO, fine scribing applications are often required. The Q-switched laser cannot adjust the pulse width parameter due to its own structure, so it is difficult to draw fine lines. However, the MOPA laser can flexibly adjust the pulse width and frequency parameters, which not only makes the scribed line fine, but also the edges appear smooth and not rough.