US Patent 10163803 Integrated fan-out packages and methods of forming the same

Integrated fan-out packages and methods of forming the same are disclosed. An integrated fan-out package includes a first die, at least one through integrated fan-out via and a molding layer. The at least one through integrated fan-out via is aside the first die and includes a seed layer and a metal layer. The molding layer encapsulates the at least one through integrated fan-out via and the first die. Besides, the seed layer surrounds a sidewall of the metal layer and is between the metal layer and the molding layer.