Patent ID: 8482048

Claim:
A power semiconductor device integrating a capacitor comprising: a semiconductor chip comprising a first power transistor disposed thereon, a first metal electrode and a second metal electrode of the first power transistor being disposed on a top surface of the semiconductor chip; a multi layer capacitor comprising a plurality of type-one capacitor plates interconnected as a first capacitor electrode and a plurality of type-two capacitor plates interconnected as a second capacitor electrode stacking with each other atop of the semiconductor chip, wherein the plurality of type-one capacitor plates and the plurality of type-two capacitor plates are alternatively placed at intervals with a dielectric layer filling a space there between for electrically isolating the plurality of type-one capacitor plates from the plurality of type-two capacitor plates, the first capacitor electrode being electrically connected to the first metal electrode of the first power transistor; a dielectric layer deposited over the first and second metal electrodes separating a bottom capacitor plate overlaying the dielectric layer; and wherein the bottom capacitor plate constitutes one of the plurality of type-two capacitor plates, a type-one connection plate is disposed alongside but insulated from the bottom capacitor plate, the type-one connection plate electrically connecting to the first metal electrode through a plurality of connection vias disposed above the first metal electrode.