Patent ID: 8450853
Filing Date: 2013-05-28
Classification: H01L

Abstract:
1. A semiconductor device, comprising: an electronic component having an electrode pad provided on an electrode pad forming face, and a rear face positioned on a side opposite to the electrode pad forming face; an insulating member provided to seal a periphery of the electronic component, and having a first face exposing the electrode pad forming face of the electronic component and a second face exposing the rear face of the electronic component; a multi-layer wiring structure body provided to cover the first face of the insulating member, the electrode pad, and the electrode pad forming face, and including a plurality of insulating layers laminated on each other, and a wiring pattern; and a piercing electrode piercing the insulating member from the first face to the second face, wherein the wiring pattern is directly connected to the electrode pad and the piercing electrode, said multi-layer wiring structure body further includes an external connection pad located on a side opposite to the electronic component, the wiring pattern is connected to the external connection pad, and includes a first connecting face being exposed from a part of the multi-layer wiring structure body contacting the electrode pad, and a second connecting face being exposed from a part of the multi-layer wiring structure body contacting the insulating member, and the piercing electrode is connected to the second connecting face, wherein the insulating layers cover the first face of the insulating member, the electrode pad, and the electrode forming face of the electronic component, said insulating layers having a first opening to expose an end face of the piercing electrode and a second opening to expose the electrode pad, and wherein the multi-layer wiring structure further comprises a wiring layer including the wiring pattern and located on the insulating layers, said wiring layer being connected to the piercing electrode and the electrode pad through vias provided in the first and second openings.