Patent ID: 8269337

Claim:
A packaging substrate having a through-holed interposer embedded therein, comprising: a molding layer having a first surface and an opposite second surface; the through-holed interposer embedded in the molding layer and having a first side and an opposite second side and a plurality of conductive through holes penetrating the first side and the second side, wherein each of the conductive through holes has a first end surface on the first side and a second end surface on the second side, and the second side of the through-holed interposer and the second end surfaces of the conductive through holes are flush with the second surface of the molding layer; a redistribution-layer structure embedded in the molding layer and disposed on the first side of the through-holed interposer and the first end surfaces of the conductive through holes and electrically connected to the first end surfaces of the conductive through holes, wherein an outermost layer of the redistribution-layer structure has a plurality of electrode pads exposed from the first surface of the molding layer; and a built-up structure disposed on the second surface of the molding layer, the second side of the through-holed interposer and the second end surfaces of the conductive through holes, wherein the built-up structure has a plurality of conductive vias, a portion of the conductive vias being electrically connected to the second end surfaces of the conductive through holes.