Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg



Preliminary investigations on laser activation of thermoplastics for the additive metallisation of MIDs ADDIMID



Project Status: finished

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Object of the ADDIMID project was the development of laser-sensitive thermoplastics. Irradiation with the laser modifies the surface characteristics in such a way that an electroless metallization process is catalyzed. The catalytic effect is due to SiO2-encapsulated copper particles that are added to a matrix polymer before injection molding. Selective laser irradiation of the workpiece exposes and partly vaporizes the copper particles. This causes a two-dimensional flash metallization around the vaporized copper particles, which results in a deposition of metal in a reductive copper bath. With a Q-switched Nd:YAG laser 1064 nm, the achievable structuring speeds are around 500 mm/s. After electro-plating, the peeling resistance on metalized polyamide substrates is around 0.3 N/mm.


Letztes Update: 30.04.2010