Patent ID: 8867225

Claim:
A wiring board comprising: a core layer having a through hole therethrough and comprising a first surface and a second surface opposite to the first surface; a first wiring layer formed on the first surface of the core layer and having a first opening which is communicated with the through hole, wherein an opening area of the first opening is larger than that of the through hole in a plan view, an electronic component disposed in the through hole and the first opening and comprising: a first surface; a second surface opposite to the first surface; and a side surface between the first surface and the second surface, the electronic component further comprising a pair of terminals that are insulated from each other and are each formed to extend continuously on the first surface of the electronic component, the second surface of the electronic component, and the side surface of the electronic component, wherein the first surface of the electronic component is located on a side of the first surface of the core layer and the second surface of the electronic component is located on a side of the second surface of the core layer; a first resin layer filled in the through hole, the first opening and a gap between the pair of terminals so as to cover the second surface and the side surface of the electronic component; a second resin layer which is directly formed on the first surface of the core layer, a surface of the first wiring layer, and surfaces of the pair of terminals of the electronic component; and a via electrode formed through the second resin layer and electrically connected to the pair of terminals.