An electromagnetic screening structure formed on or in a non-conductive carrier for providing the carrier with electromagnetic shielding, the non-conductive carrier comprising a plastic material having non-conductive metal compounds embedded therein, the electromagnetic screening structure comprising:
- a flat metal seed layer formed on or in the carrier, the flat metal seed layer comprising a plurality of broken open compounds of said non-conductive metal compounds, and wherein metal atoms of the broken open compounds are exposed such that the metal atoms act as seeds of the flat metal seed layer;
- and
- a flat metal coating that has been applied over the flat metal seed layer and is in electrical contact with said metal seed layer, and wherein the electromagnetic screening structure is electrically coupled to a fixed reference potential.