Patent ID: 7977780

Claim:
A method for manufacturing a package-on-package system comprising: providing a bottom package module, having an inter-package bond wire, incorporating a bottom package substrate having a passive component; attaching a central internal stacking module, incorporating a central interposer, on top of the bottom package module; placing a spacer, partially encapsulating the inter-package bond wire, on the top surface of the central internal stacking module; mounting a first top package module, incorporating a first top interposer covering a perimeter of the central interposer and having an opening exposing the center of the central interposer, on the spacer and the first top package module includes a device on a bottom surface of the first top interposer with the device facing the passive component; and enclosing at least portions of the bottom package module, the central internal stacking module, and the first top package module with an encapsulant.