Dusseldorf / 10/16/2019 - 10/23/2019
The Fraunhofer Institute for Laser Technology ILT has developed and qualified individual processes for the welding, cutting, drilling, structuring and marking of plastics all the way to turnkey production systems. Since these laser processes can be automated well and place the energy input at a specific location, they open up new possibilities in the design of innovative plastic products and production processes.
Microfluidic systems are used for the transport, filtration and mixing of the smallest liquid quantities in the micro- and picolitre range. The use of high-precision laser radiation opens up new potentials for the production of tailor-made microfluidic components. The generation of the complex channel structures as well as the cutting of the chip are realized by means of CO2 laser radiation. The media-tight absorber-free laser welding of the chip is carried out using laser radiation in the range between 1600 - 2000 nm. Selected areas are specifically polished using laser radiation to achieve a high degree of transparency, e.g. for spectroscopic measurements.