A package structure and method for forming the same are provided. The package structure includes a cooling substrate formed on a base substrate, and the cooling substrate includes a cooling device. The package structure includes a packaged semiconductor device formed on the cooling substrate, and the packaged semiconductor device includes a first die, and the cooling device is directly below the first die.

A package structure is provided. The package structure includes a device die bonded to a package substrate via a plurality of connectors. The package structure includes a dummy die bonded to the package substrate via a plurality of dummy connectors and disposed adjacent to the device die. The dummy die includes a base portion, an upper portion bonded to the base portion, and an edge molding material formed over the base portion and surrounding the upper portion. The package structure also includes a package molding material over the package substrate and around the dummy die and the device die. The Young's modulus of the edge molding material is less than the Young's modulus of the package molding material.

A semiconductor device package comprises a semiconductor device, a first encapsulant surrounding the semiconductor device, a second encapsulant covering the semiconductor device and the first encapsulant, and a redistribution layer extending through the second encapsulant and electrically connected to the semiconductor device.

A semiconductor device package comprises a semiconductor device, a first encapsulant surrounding the semiconductor device, a second encapsulant covering the semiconductor device and the first encapsulant, and a redistribution layer extending through the second encapsulant and electrically connected to the semiconductor device.