Patent ID: 7615842
Filing Date: 2009-11-10
Classification: H03H

Abstract:
1. An inductor integrated chip comprising: a wafer; an inductor bonded on a surface of the wafer; a circuit element formed on the surface of the wafer and coupled to a first end of the inductor; a packaging wafer connected to the surface of the wafer and packaging the inductor and the circuit element, wherein the packaging wafer comprises a protruding part which extends towards the wafer to form a first cavity and a second cavity, the inductor is disposed in the first cavity and the second cavity, and the circuit element is disposed the second cavity; and a connecting electrode formed on the packaging wafer and coupled to a second end of the inductor, wherein the connecting electrode comprises a surface connecting electrode formed on a lower surface of the packaging wafer and coupled to the second end of the inductor, and a penetrating connecting electrode penetrating the package wafer and coupled to the surface connecting electrode; and wherein the surface connecting electrode is coupled to the second end of the inductor at a bottom surface of the protruding part, and is connected to the penetrating connecting electrode inside the second cavity.