Patent ID: 9633974
Date: 2017-04-25
CPC Classifications: H01L

Claim:
1. A package comprising: a first die including a bottom surface that includes a first contact pad and a passivation layer; a first redistribution layer (RDL); wherein the first die is attached to a front side of the first RDL such that the front side of the first RDL is directly on the first contact pad and the passivation layer; a first molding compound encapsulating the first die on the front side of the first RDL; a top surface of a second die attached to a back side of the first RDL with a die attach film such that the second die is facing back to the first RDL; a second RDL; a plurality of conductive pillars extending from the back side of the first RDL to a front side of the second RDL; a second molding compound encapsulating the second die and the plurality of conductive pillars between the back side of the first RDL and the front side of the second RDL.