InnoLas Systems Laser: cutting chemically strengthened glass

  Cutting technology

InnoLas has, says the German company, developed a laser cutting process that allows to cut chemically strengthened glass with a layer thickness of 50μm or more, requiring no or only little post processing.

CutInnoLas02
InnoLas Systems Laser cuts strengthened glass with DOL 50 μm and above
Chemically strengthened glass has become a must‐have for advanced smartphones, tablets, and other portable electronics. It offers superior hardness and scratch resistance, but it presents challenges in production. The deeper the chemically strengthened layer, the more difficult it becomes to cut the glass with conventional methods. The InnoLas laser cutting process allows to cut chemically strengthened glass with a layer thickness of 50μm or more, requiring no or only little post processing. Additionally, this unique InnoLas glass cutting process enables high quality drilling and cutting of inner contours and features (e.g. holes or slots) into chemically strengthened glass with a DOL of 50μm and above, without chipping, micro cracks and breakouts.
The glass technology rapidly develops harder and more scratch resistant products, resulting in thicker ion exchange layers. Thus, it becomes more difficult to use conventional cutting techniques, as the tension‐compression in the glass grows and its tolerance for any kind of perturbation decreases. Conventional laser cutting is based on rapid heating processes, leading to vaporization and material removal. This process is not only slow, but will lead to low yield due to micro‐cracks, chip‐outs and a rough surface finish. The necessary subsequent grinding and polishing steps are costly and time consuming.
InnoLas laser cutting employs specially tuned lasers that cut brittle materials. This technique has demonstrated perfect ...

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