Patent ID: 9743534
Date: 2017-08-22
CPC Classifications: H01L,H05K

Claim:
1. A wiring board with a built-in electronic component, comprising: a substrate having a cavity; an interlayer insulating layer formed on the substrate such that the interlayer insulating layer is covering the cavity of the substrate; a conductor layer formed on the interlayer insulating layer; an electronic component accommodated in the cavity of the substrate and comprising a rectangular cuboid body and a plurality of terminal electrodes such that each of the terminal electrodes has a metal film form formed on an outer surface of the rectangular cuboid body; and a plurality of via conductors formed in the interlayer insulating layer such that the plurality of via conductors is connecting the conductor layer and the terminal electrodes of the electronic component, wherein the electronic component has the terminal electrodes arrayed in a matrix comprising a plurality of rows and a plurality of columns on the outer surface of the rectangular cuboid body such that adjacent terminal electrodes in a row direction and in a column direction have opposite polarities, the conductor layer comprises a line pattern shunting a first group of the terminal electrodes in one polarity and a solid pattern shunting a second group of the terminal electrodes in the other polarity such that the solid pattern is insulated from the line pattern, the plurality of terminal electrodes is arrayed in the matrix comprising two rows and at least three columns on the outer surface of the rectangular cuboid body, the conductor layer comprises a plurality of electrode opposing portions arrayed in a plurality of rows facing the terminal electrodes arrayed in the matrix across the interlayer insulating layer such that the plurality of via conductors is connecting the electrode opposing portions of the conductor layer and the terminal electrodes of the electronic component, the line pattern of the conductor layer has a triangle wave line pattern facing the first group of the terminal electrodes and connecting a group of the via conductors formed in a zigzag pattern, and the solid pattern of the conductor layer has a frame pattern surrounding the electrode opposing portions and the line pattern and connecting to the second group of the terminal electrodes.