Patent ID: 8253030

Claim:
A printed wiring board comprising: a main body having a mounting portion on a surface and a plurality of ground pads and a plurality of power supply pads in the mounting portion, the ground pads being positioned such that a ground line of a semiconductor device is connected to one of the ground pads, the power supply pads being positioned such that a power supply line of the semiconductor device is connected to one of the power supply pads; and a layered capacitor disposed in the main body and comprising a high dielectric constant layer and first and second layer electrodes sandwiching the high dielectric constant layer, the high dielectric constant layer comprising a ceramic body calcined in a sheet form, wherein the main body has a build-up portion comprising a resin insulating layer, the layered capacitor is positioned on the resin insulating layer of the build-up portion, one of the first and second layer electrodes is connected to the power supply line of the semiconductor device and the other one of the first and second layer electrodes is connected to the ground line of the semiconductor device, the first layer electrode has a solid pattern including a plurality of passage holes through which a plurality of second rod terminals connected to the second layer electrode pass in a non-contacting manner, the second layer electrode has a solid pattern including a plurality of passage holes through which a plurality of first rod terminals connected to the first layer electrode pass in a non-contacting manner, at least one of the first and second layer electrodes comprises a metal layer formed on the high dielectric constant layer and a plating film formed on the metal layer, and at least one of the plurality of first rod terminals and the plurality of second rod terminals comprises a plating film.