Patent ID: 8124882

Claim:
A printed wiring board comprising: a main body having a surface, the surface of the main body having a mounting portion in which a plurality of ground pads and a plurality of power supply pads of are formed and positioned to mount a semiconductor element; and a layered capacitor portion disposed in the main body and comprising a high dielectric constant layer and first and second layer electrodes sandwiching the high dielectric constant layer, wherein the high dielectric constant layer of the layered capacitor portion comprises a ceramic high dielectric constant sheet prepared by calcining in advance a high dielectric constant material, one of the first and second layer electrodes is electrically connected to the plurality of power supply pads, the other one of the first and second layer electrodes is electrically connected to the plurality of ground pads, the first layer electrode is connected to one of the plurality of ground pads and the plurality of power supply pads through a plurality of rod terminals, passing through the second layer electrode in a non-contacting manner, and the plurality of rod terminals is provided in a fewer number than a number of the one of the plurality of ground pads and the plurality of power supply pads.