Patent ID: 8699232
Filing Date: 2014-04-15
Classification: H01L

Abstract:
1. An integrated circuit packaging system comprising: a substrate; an interposer over the substrate, the interposer having a top interposer surface; an interposer pad extension attached to the top interposer surface, the interposer pad extension having an extension contact surface and a lower contact surface, the surface area of the extension contact surface being smaller than the surface area of the lower contact surface; and a package encapsulation on the substrate, the interposer, and the interposer pad extension, the package encapsulation having a recess exposing the top interposer surface, the interposer pad extension embedded only in the package encapsulation a base die mounted on the substrate; an interposer adhesive on the base die and the interposer, the interposer adhesive filling the space between the interposer and the base die; an interposer interconnect on the top interposer surface and the substrate; and an integrated circuit die mounted on the interposer in the recess; wherein: the interposer pad extension is exposed from the package encapsulation.