Patent ID: 7671716

Claim:
An inductive module comprising: an electrically insulating basic substrate unit having opposite first and second trace-forming sides; a first core unit made from a ferromagnetic material, embedded in said basic substrate unit, and having a pair of opposite first and second vertical sides and a pair of first and second opposite horizontal sides, said first and second horizontal sides being substantially parallel to said first and second trace-forming sides and being respectively spaced apart from said first and second trace-forming sides; and a first coil unit including a plurality of first conductive vias formed in said basic substrate unit adjacent to said first vertical side of said first core unit, spaced apart from each other and from said first vertical side of said first core unit, and extending from said first trace-forming side to said second trace-forming side, a plurality of second conductive vias formed in said basic substrate unit adjacent to said second vertical side of said first core unit, spaced apart from each other and from said second vertical side of said first core unit, and extending from said first trace-forming side to said second trace-forming side, a plurality of first conductive traces, each of which is disposed on said first trace-forming side of said basic substrate unit and interconnects electrically a corresponding pair of said first and second conductive vias, and a plurality of second conductive traces, each of which is disposed on said second trace-forming side of said basic substrate unit and interconnects electrically a corresponding pair of said first and second conductive vias; wherein said first and second conductive traces and said first and second conductive vias of said first coil unit cooperate to form a first electric current path that substantially winds around said first core unit.