Patent ID: 8252629

Claim:
A method for making a stackable package, comprising: (a) providing a first carrier having a surface; (b) disposing at least one chip on a surface of the first carrier, wherein the chip comprises a first surface, a second surface, an active circuit layer and at least one conductive via, the active circuit layer is disposed in the chip and exposed to the second surface, the conductive via is disposed in the chip and connected to the active circuit layer; (c) forming a molding compound on the surface of the first carrier, so as to encapsulate the chip, wherein the molding compound comprises a surface attached to the surface of the first carrier; (d) removing the first carrier, so as to expose the second surface of the chip and the surface of the molding compound; (e) forming a first redistribution layer (RDL) and at least one first bump, wherein the first redistribution layer (RDL) is disposed on the second surface of the chip and the surface of the molding compound, and electrically connected to the conductive via by the active circuit layer, the first bump is disposed on the first redistribution layer (RDL), and electrically connected to the active circuit layer and the conductive via by the first redistribution layer (RDL); (f) providing a second carrier; (g) disposing a surface of the first redistribution layer (RDL) on the second carrier; (h) removing part of the chip and part of the molding compound, so as to expose the conductive via to the first surface of the chip, and form a through via; (i) forming a second redistribution layer (RDL) on the first surface of the chip, wherein the second redistribution layer (RDL) is electrically connected to the through via; and (j) removing the second carrier.