Patent ID: 8013434

Claim:
A thin double-sided package substrate, comprising: a carrier having a first surface, a second surface and a through-hole, wherein the through-hole penetrates the first surface and the second surface, and the carrier is made of insulating material; at least one first conductive layer formed on the first surface; at least one second conductive layer formed on the second surface and covering an opening of the through-hole, wherein the first conductive layer and/or the second conductive layer comprise circuits; a conductive element set in the through-hole and used to electrically connect the first conductive layer with the second conductive layer; a first metal layer formed on the first conductive layer and/or the second conductive layer; and at least one chip receiving bay formed by removing a portion of the carrier from the first surface to the second surface until the second conductive layer thereunder is exposed for accommodating at least one chip therein on the exposed second conductive layer.