Patent ID: 8022805
Filing Date: 2011-09-20
Classification: H01F,H01L

Abstract:
1. A spiral inductor device, comprising: an insulating layer disposed on a substrate; a spiral conductive trace with multiple turns disposed on the insulating layer, a first non-continuous spiral conductive trace with a single turn disposed on the insulating layer and comprising at least a first conductive segment and a second conductive segment, wherein the first non-continuous spiral conductive trace is connected to the ground; wherein one of the outermost turn and innermost turn of the spiral conductive trace, which extends from the other one of the first and second ends that is not connected to ground, is parallel and adjacent to the first non-continuous spiral conductive trace; wherein the first conductive segment and second conductive segment are arranged on both sides of a straight line passing through a central area surrounded by the spiral conductive trace, respectively.