An embodiment of the disclosure provides a package device including a redistribution layer, an integrated passive device layer, a first port, and a second port. The integrated passive device layer contacts the redistribution layer. The integrated passive device layer has at least one capacitor. The at least one capacitor includes a first capacitor and a second capacitor. The first port is electrically connected to the first capacitor and the second capacitor. The second port is provided opposite to the first port. The second port is electrically connected to the first capacitor and the second capacitor. The first port and the second port have the same resistance.