Patent ID: 8242612

Claim:
A wiring board, comprising: a core substrate, the core substrate including an insulation base member including inorganic dielectric, and a plurality of linear conductors, the linear conductors being configured to pierce from a first surface of the insulation base member to a second surface of the insulation base member, the linear conductors including a first linear conductor, a second linear conductor, and a third linear conductor; a ground wiring group, the ground wiring group including a belt-shaped first ground wiring formed on the first surface of the core substrate, and a belt-shaped second ground wiring formed on the second surface of the core substrate so as to face the first ground wiring, the second ground wiring being electrically connected to the first ground wiring by way of the first linear conductor; and an electric power supply wiring group, the electric power supply wiring group including a belt-shaped first electric power supply wiring formed on the first surface of the core substrate, and a belt-shaped second electric power supply wiring formed on the second surface of the core substrate so as to face the first electric power supply wiring, the second electric power supply wiring being electrically connected to the first electric power supply wiring by way of the second linear conductor; wherein the ground wiring group and the electric power supply wiring group are formed by way of the insulation base member so that a capacitor is formed, wherein the third linear conductor is provided between the ground wiring group and the electric power supply wiring group, and is electrically isolated.