Patent ID: 9119313
Filing Date: 2015-08-25
Classification: H01L,H05K

Abstract:
1. A package assembly comprising: a package substrate having a die mounted on a surface of the package substrate; a bridge embedded inside the package substrate, the bridge including a bridge substrate, wherein the bridge substrate includes a first surface and a second surface opposite the first surface, wherein the first surface is disposed closer to the surface of the package substrate than the second surface, and wherein a distance between the first and second surfaces defines a substrate thickness; and an interconnect structure including a substantially conically shaped via extending through the first surface into the bridge substrate at a depth that is less than half of the substrate thickness, to interface with a conductive feature disposed on or beneath the first surface of the bridge substrate, wherein the via is filled with a conductive material to form a conductive pillar on top of the via, wherein the conductive pillar protrudes through the surface of the package substrate, and wherein a diameter of the conductive pillar is smaller than a diameter of a base of the conically shaped via formed on the surface of the package substrate, wherein the interconnect structure is to route electrical signals between the conductive feature and the die mounted on the surface of the package substrate.