Patent ID: 8779562

Claim:
A method of manufacture of an integrated circuit packaging system comprising: providing a bottom substrate; attaching a first integrated circuit die to the bottom substrate; forming an interposer including: providing an intermediate substrate, the intermediate substrate is a step-down substrate, depositing a shield directly on the intermediate substrate, the shield is connectible through the intermediate substrate to a ground and the shield is a conductive paste of inductive material for forming an electromagnetic interference and noise suppression structure, and applying an adhesive to the shield; attaching the interposer to the first integrated circuit die with the adhesive; molding a first encapsulation over the interposer, the first encapsulation completely covering vertical sides of the step-down substrate; forming contact pads on the interposer; providing an upper substrate having a top surface and a bottom surface; attaching a second integrated circuit die to the top surface of the upper substrate; forming interconnects on the bottom surface of the upper substrate; attaching the upper substrate to the interposer such that the interconnects and the contact pads form electrical connections; and molding a second encapsulation over the upper substrate, the second encapsulation covering the second integrated circuit die.