Package carrier board integrated with inductive circuit structure and manufacturing method thereof

Abstract

A package carrier board includes a first circuit build-up structure, a patterned magnetic conductive metal layer, a plurality of first conductive pillar, a second insulating layer, and a second circuit build-up structure. The patterned magnetic conductive metal layer is disposed above the first circuit build-up structure, and the cross-sectional pattern of the patterned magnetic conductive metal layer is L-shaped and/or U-shaped. The first conductive pillars are disposed on the first circuit build-up structure and located outside of the patterned magnetic conductive metal layer. The second insulating layer covers the patterned magnetic conductive metal layer and the first conductive pillars. The second circuit build-up structure is disposed on the second insulating layer. The first circuit build-up structure, the first conductive pillars, the second insulating layer, and the second circuit build-up structure are combined to form an inductive circuit structure. Additionally, a manufacturing method for the package carrier board is also disclosed.