Patent ID: 9113575
Filing Date: 2015-08-18
Classification: H01L,H05K,Y10T

Abstract:
1. A wiring board with a built-in electronic component, comprising: a substrate having an accommodation portion; an electronic component having an electrode and accommodated in the accommodation portion of the substrate; an adhesive layer formed in the accommodation portion of the substrate such that the adhesive layer is positioning the electronic component in the accommodation portion of the substrate; a conductive layer having a wiring conductive pattern and a planar conductive pattern formed directly on a surface of the substrate such that the planar conductive pattern is formed directly on a surface of the adhesive layer and extending over the electrode of the electronic component; and at least one via conductor formed in the adhesive layer such that the via conductor is connecting the planar conductive pattern of the conductive layer and the electrode of the electronic component, wherein the conductive layer is formed such that the wiring conductive pattern and the planar conductive pattern have a same thickness, the electrode of the electronic component has a portion which faces the planar conductive pattern of the conductive layer and which has a plurality of outer edges facing outward with respect to a surface of the electronic component on which the portion of the electrode is formed, and the planar conductive pattern of the conductive layer has a portion positioned directly over at least one of the outer edges of the electrode of the electronic component.