Laser separation technique: Multiple Laser Beam Technology (MLBT)

The two main requirements for any separation process are a superior cutting quality – in terms of visual appearance and structural integrity of the cut – and a low throughput time. The latter depends to a great extend on the dicing speed thus the material removal rate of the process. In the case of laser dicing both requirements are generally speaking diametrical opposed to each other. The material removal rate scales with increasing laser power, the dicing quality deteriorates accordingly. Typically a fast laser separation process comes along with a wide cut, rough edges, increased volumes of recast and burr as well as a pronounced heat affected zone (HAZ). Read more and watch the video

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