Patent ID: 8829666
Filing Date: 2014-09-09
Classification: H01L

Abstract:
1. A semiconductor package comprising: at least one die stack having first and second surfaces, the second surface of the die stack includes a plurality of conductive die pads; an integrated package substrate having first and second major surfaces, wherein the package substrate includes a first patterned substrate layer comprising a cap having first and second surfaces to encapsulate the at least one die stack, wherein the second surface of the cap is disposed at a different plane than the second surface of the die stack, such that a cavity is enclosed by the second surface of the die stack and sidewalls of the cap in between the die attach and non-die attach regions, wherein the substrate via contacts are disposed within the cavity and extend from a plane below the second surface of the die stack to the second major surface of the first patterned substrate layer, and wherein the first surface of the cap is substantially coplanar with the first surface of the die stack which is opposite the second surface of the die stack such that the first surface of the die stack is exposed and not covered by the cap.