Packaged Semiconductor Die with Bumpless Die-Package Interface for Bumpless Build-Up Layer (BBUL) Packages

摘要

A packaged semiconductor die with a bumpless die-package interface and methods of fabrication are described. For example, a semiconductor package includes a substrate having a land side with a lowermost layer of conductive vias. A semiconductor die is embedded in the substrate and has an uppermost layer of conductive lines, one of which is coupled directly to a conductive via of the lowermost layer of conductive vias of the substrate. In another example, a semiconductor package includes a substrate having a land side with a lowermost layer of conductive vias. A semiconductor die is embedded in the substrate and has an uppermost layer of conductive lines with a layer of conductive vias disposed thereon. At least one of the conductive lines is coupled directly to a conductive via of the semiconductor die which is coupled directly to a conductive via of the lowermost layer of conductive vias of the substrate.