Patent ID: 9265158
Filing Date: 2016-02-16
CPC Classification: H01F,H01L,H05K,Y10T

Claim Text:
1. A printed wiring board, comprising: a core substrate having a cavity portion; an inductor component accommodated in the cavity portion of the core substrate; a filler resin filling a gap formed between the core substrate and the inductor component in the cavity portion of the core substrate; and a first buildup layer formed on a first surface of the core substrate and on the inductor component, wherein the inductor component comprises at least one coil layer forming a wiring pattern on a plane, at least one second insulation layer formed on the coil layer and comprising an insulating resin material, a plurality of electrodes including an input electrode and an output electrode and formed on the second insulation layer, and a plurality of via conductors formed in the second insulation layer and connecting the coil layer and the electrodes, the inductor component is accommodated in the cavity portion of the core substrate such that the plurality of electrodes faces the first surface of the core substrate, and the first buildup layer includes a first interlayer resin insulation layer formed on the first surface of the core substrate and on the inductor component, a conductive layer formed on the first interlayer resin insulation layer, and a plurality of connection via conductors connecting the conductive layer and the electrodes in the inductor component.