Patent ID: 8338912

Claim:
An inductor module comprising: a substrate functioning as a printed wiring board or an interposer; an integrated circuit mounting part formed on a surface of said substrate; an inductor which is formed in said substrate at such a position as to overlap with said integrated circuit mounting part on a plan-view basis and which is connected to an integrated circuit mounted on said integrated circuit mounting part; and a magnetic body including a magnetic material selected from among a NiZn ferrite, a NiZnCu ferrite and a Ba ferrite, said magnetic body being disposed intermediately between said integrated circuit mounting part and said inductor, wherein, a real part and an imaginary part of a permeability characteristic of the magnetic body respectively match an operating frequency range of the integrated circuit so as to amplify an L value of the inductor and a frequency range outside of the operating frequency range of the integrated circuit so as to suppress radiation of harmonics from the integrated circuit.