Patent ID: 7934313

Claim:
A fabrication method of a package structure, comprising the steps of: preparing a metal plate having a first surface and an opposed second surface and defined with at least an active region; forming a wiring layer with a plurality of conductive traces and a plurality of first electrical contact pads on the first surface in the active region; forming a first encapsulant on the first surface of the metal plate to cover the wiring layer; forming on the second surface in the active region an open area to penetrate the metal plate for exposing the wiring layer; disposing a chip in the open area, followed by electrically connecting the chip to the wiring layer; forming a second encapsulant in the open area to cover the chip and the wiring layer; forming a plurality of openings in the first encapsulant to expose the first electrical contact pads, respectively; and cutting the metal plate to remove the metal plate.