A package includes a first die, a second die, an encapsulant, and a redistribution structure. The first die has a first capacitor embedded therein. The second die has a second capacitor embedded therein. The second die is stacked on the first die. The first capacitor is electrically connected to the second capacitor. The encapsulant laterally encapsulates the second die. The redistribution structure is disposed on the second die and the encapsulant.