Patent ID: 8319338

Claim:
A semiconductor package comprising: a bottom substrate including: a plurality of first contacts, at least some of the first contacts of the bottom substrate each having a solder ball which is of a first maximum diameter disposed thereon; and a plurality of second contacts, each of the second contacts of the bottom substrate being electrically connected to at least one of the first contacts thereof; at least one electronic component attached to the bottom substrate and electrically connected to at least one the first contacts; a package body at least partially encapsulating the bottom substrate and the electronic component, the package body including a plurality of vias disposed therein and extending to respective ones of the solder balls of the bottom substrate; and a top substrate including: a plurality of first contacts; and a plurality of second contacts, each of the first contacts of the top substrate being electrically connected to at least one of the second contacts thereof; at least some of the second contacts of the top substrate each having a solder ball which is of a second maximum diameter substantially equal to the first maximum diameter disposed thereon, the solder balls of the top substrate being mechanically and electrically connected to respective ones of the solder balls of the bottom substrate, with the vias being sized and configured to accommodate the advancement of the solder balls on the top substrate therein to a depth wherein the top substrate is disposed in extremely close proximity to the package body.