Patent ID: 7893795
Filing Date: 2011-02-22
Classification: H03H

Abstract:
1. A circuit device having a planar inductor and a first capacitor in parallel connection, comprising: the planar inductor, embedded in a dielectric material layer, wherein the planar inductor has a winding wire portion, a first connection terminal and a second connection terminal, the first connection terminal and the second connection terminal are located at different elevations and have an overlapping region; and a capacitor dielectric layer, located within the overlapping region between the first connection terminal and the second connection terminal, wherein the capacitor dielectric layer and the first connection terminal and the second connection terminal together form the first capacitor, wherein the planar inductor comprises a plurality of conductive layers, wherein the plurality of conductive layers comprise a top conductive layer and a bottom conductive layer respectively served as the first connection terminal and the second connection terminal, wherein the capacitor dielectric layer is corresponding to one of at least one inner layer of the plurality of conductive layers, and the capacitor dielectric layer and the corresponding one of the at least one inner layer substantially have a same thickness and a same elevation.