Patent ID: 7937830

Claim:
An electronic device fabrication method comprising the steps of: fabricating on a substrate an interposer comprising a base formed of a plurality of resin layers; a thin-film capacitor buried in the base, including a lower electrode, a capacitor dielectric film formed on the lower electrode, and an upper electrode formed on the capacitor dielectric film; a first through-electrode formed through the base and electrically connected to the upper electrode; and a second through-electrode formed through the base and electrically connected to the lower electrode of the thin-film capacitor, the interposer further comprising an interconnection buried in the base and electrically connected to the respective upper electrodes of a plurality of the thin-film capacitors; and a plurality of the first through-electrodes being electrically connected to the upper electrodes of said plurality of the thin-film capacitors via the interconnection; supporting the interposer by a supporting substrate; removing the substrate with the interposer supported by the supporting substrate; and mounting the interposer on another substrate.