Speaker: Nouhad Bachnak | Company: Sunway Communication | Date: 12-13 October 2022 | Full Presentation
The traditional LDS (laser direct structuring) process is fantastic but only works on special plastic substrates containing sub-surface activation particles. This limits the choice and functionality of materials. Firstly, it typically does not work with glass, ceramics, PET or thermosets. Furthermore, the addition of activation particles can render a transparent material opaque or eliminate bio-compatibility. Furthermore, the linewidth resolution is typically around 80-100um (but can be pushed further down) with surface roughness of 20-30um
In this talk, Nouhad Bachnak unveils a new process, which promises to overcome these limitations. Here, the process first involves a special laser structuring process followed by a so-called chemical activation step. After this step, the structured and activated part undergoes typical plating (Cu-NiP-Au)
This is an important development and advancement of the technology, because it greatly lessens the limits on the choice of materials which can be 3D metallized with bulk-like properties and solderable surfaces
Furthermore, it will be shown that this process- when optimized- will achieve 5um linewidths with a surface roughness of just 2-3um (great for antennas, for example). It can also plate within vias with 40um diameter.
This is still not the full production level for all substrates. The most advanced development is for thermoset, which is production ready. The other substrates like glass, PET, and ceramics are still in development. Nonetheless, it is a good space to watch.
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