Smartphone Screen Cutting

Smartphone screen cutting


The very things that make glass for smartphones useful - their hardness and thinness - make them almost impossible to cut to shape by conventional means. Extremely fast lasers make the job possible. By scanning across cut lines several times using superfast pulses of light, the laser can cut the strongest types of glass in any shape and with a smooth edge contour. This removes the need for lengthy shaping and polishing operations. The laser produces pulses of a few tens of picoseconds (million millionths of a second) duration at a rate of tens of millions of pulses per second. This prevents localised heat build-up which could cause stress fractures in the glass.

Image © Fraunhofer Institute for Laser Technology ILT, Aachen, Germany / Volker Lannert


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