Materials Processing

Clear Plastic Welding

clear plastic 400

Many clear plastics have strong absorption of laser emission in the 2 µm wavelength range, making AdValue Photonics’ 2 µm fiber lasers the perfect tool for clear on clear plastic laser welding. While most clear plastics are transparent to visible and near IR wavelengths around 1 µm, and opaque to UV and CO2 wavelengths, 2 µm emission has the perfect mix of absorption and transmission to allow just enough heating at the interface of the parts to create an excellent weld without additional chemicals or additives.

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Clear Plastic Marking

picture marks in acrylic 400

2 µm fiber lasers can add barcodes, serialization, customized logos and other marks in many clear plastics and organic materials that cannot be marked well with a 1 µm fiber laser. AdValue Photonics’ 2 µm fiber lasers can also mark most common industrial materials, including metals, making it a very versatile tool for customers dealing with multiple material types.

TCO Scribing

ito ablation 400

Many transparent conductive oxides (‘TCOs’) have strong absorption in the 2 µm wavelength range. Indium-tin-oxide (‘ITO’) is a TCO widely used on touch screen displays and solar panels. Selective removal of ITO coated on glass or silicon substrates is frequently performed using a cumbersome etching process. However, since glass and silicon are transparent to lower intensities of  2 µm laser emission, selective ablation of the ITO can be easily achieved using AdValue Photonics’ fiber lasers.

Silicon Processing

solar panel 400

At low intensities silicon is transparent at wavelengths near 2 µm, as the intensity increases, silicon starts to absorb the 2 µm emission due to 2 photon absorption. This unique property enables multiple processing techniques, for example selective removal of organics, ablation of transparent conductive oxides (TCOs), 3D etching and scribing, backside processing, etc.