Patent ID: 6965072

Claim:
A shielding arrangement comprising: a layered printed circuit board having at least one electrical component mounted on a first outer surface of the layered printed circuit board, a shielding can mounted on the first outer surface of the layered printed circuit board, the shielding can covering said at least one electrical component, a first ground potential layer being either inside the layered printed circuit board or on the first outer surface of the layered printed circuit board, a second ground potential layer being either inside the layered printed circuit board or on a second outer surface of the layered printed circuit board and being farther from the first outer surface of the layered printed circuit board than the first ground potential layer, at least one grounding connection between the edges of the shielding can and the first ground potential layer, at least one grounding connection from the first ground potential layer or the shielding can to the second ground potential layer, the shielding can, the first ground potential layer, the second ground potential layer, and the grounding connection thus forming a Faraday cage, a third ground potential layer being inside the layered printed circuit board between the first ground potential layer and the second ground potential layer, and at least one grounding connection between the electrical components inside the shielding can and the third ground potential layer.