Patent ID: 7355282

Claim:
A circuit component comprising: a silicon substrate; a transistor in and on said silicon substrate; a first dielectric layer over said silicon substrate; a first metal layer over said first dielectric layer; a second metal layer over said first dielectric layer and over said first metal layer; a second dielectric layer over said first dielectric layer and between said first and second metal layers wherein said second dielectric layer has a thickness between 0.1 and 1 micrometer; a metal trace over said first dielectric layer; a first contact point over said silicon substrate; a second contact point over said silicon substrate, wherein said first contact point is separate from said second contact point; a passivation layer over said metal trace, over said first and second dielectric layers and over said first and second metal layers, wherein said passivation layer comprises an oxide layer and a nitride layer; a polymer layer on said passivation layer, wherein said polymer layer has a thickness between 2 and 150 micrometers and greater than that of said passivation layer, wherein a first opening in said polymer layer is over said first contact point and exposes said first contact point, wherein a second opening in said polymer layer is over said second contact point and exposes said second contact point, and wherein said polymer layer comprises polyimide; a coil on said polymer layer, wherein said coil comprises a glue/barrier layer on said polymer layer, a seed layer comprising a first copper layer having a thickness between 0.2 and 1 micrometer on said glue/barrier layer and over said polymer layer, and an electroplated metal layer comprising a second copper layer having a thickness between 3 and 20 micrometers on said first copper layer, wherein there is an undercut with an edge of said glue/barrier layer recessed from an edge of said electroplated metal layer, and wherein a first product of resistance of a first section of said coil times capacitance of said first section is smaller than a second product of resistance of a second section of said metal trace times capacitance of said second section by at least 100 times, said first section having a same length as said second section; and a metal line on said polymer layer and over said first and second contact points, wherein said first contact point is connected to said second contact point through said metal line.