Abstract: An interference shielded, for example a RFI and/or EMI shielded, for an electronics module which forms a contact with at least one edge zone of a circuit board, is provided. The contact functions in the electronics module as a ground. The circuit board includes an outermost electrically conductive layer providing the interference shield of the electronics module; at least one circuit card layer unit comprising electronics components and a wiring pattern embedded into a filling material of the circuit board layer; and encapsulating activation material layer. The activation material layer is advantageously a substrate layer or a resin layer, and which overlays above the topmost circuit board layer, and which is arranged into a space between the outermost layer and topmost circuit board layer to be therein conformingly against the inner surface of the outermost layer for isolating the electronic components and the wiring pattern from outermost layer.