Patent ID: 7269032

Claim:
A shielding apparatus for EMI-sensitive components, comprising: a first circuit board, having a plurality of layers having interfacial connections, said first circuit board including a first base surface and a recess opening on one layer in which non-EMI-sensitive components are arranged; a first contact area encompassing the recess opening; a first earth face, which corresponds to an area of the base surface and the recess opening, wherein the non-EMI-sensitive components are arranged outside the first contact area or the first earth face; a second circuit board, having a plurality of layers having interfacial connections, said second board including a second base surface on one layer in which EMI-sensitive components are arranged; a second contact area encompassing the EMI-sensitive components; and a second earth face, corresponding to an area of the second base surface, wherein the first and second circuit board are coupled via joining means, and wherein said EMI-sensitive components are arranged within the recess opening of the first printed circuit board, and wherein at least some of the interfacial connections, together with the recess and the first and second earth faces, form a cage in which the EMI-sensitive components are shielded.