Patent ID: 8580616

Claim:
A method comprising; attaching a first die to a first side of a carrier; attaching a second die to a second side of the carrier; forming dielectric material on the first side of the carrier and forming dielectric material on the second side of the carrier; forming via connections and interconnect structures through the dielectric material on the first side of the carrier to connect to the first die and forming via connections and interconnect structures through the dielectric material on the second side to connect to the second die; attaching a third die on the dielectric material on the first side of the carrier and attaching a fourth die on the dielectric material on the second side of the carrier; forming additional dielectric material and interconnect structures on the third die and forming additional dielectric material and interconnect structures on the fourth die; and separating the first and third die from the second and fourth die along the carrier to form two separate package structures.