Abstract: An interposer includes a substrate, an electrically-conductive structure, at least one dielectric layer, a redistribution structure and electrode pads. The substrate is made of a ceramic material and has first and second surfaces and via holes. The electrically-conductive structure includes conductive pads, substrate vias disposed in the via holes, and layered electrically-conductive parts. The dielectric layer is disposed on the second surface to cover the layered electrically-conductive parts. The redistribution structure penetrates the dielectric layer and is connected to the layered electrically-conductive parts. The electrode pads are disposed on a surface of the dielectric layer.

Abstract: An interposer includes a substrate, an electrically-conductive structure, at least one dielectric layer, a redistribution structure and electrode pads. The substrate is made of a ceramic material and has first and second surfaces and via holes. The electrically-conductive structure includes conductive pads, substrate vias disposed in the via holes, and layered electrically-conductive parts. The dielectric layer is disposed on the second surface to cover the layered electrically-conductive parts. The redistribution structure penetrates the dielectric layer and is connected to the layered electrically-conductive parts. The electrode pads are disposed on a surface of the dielectric layer.