Symmetrical inductor
First Claim
1. An inductor, comprising:
- an insulating layer disposed on a substrate;
first and second winding portions symmetrically arranged in the insulating layer, each winding portion comprising first, second and third semicircular conductive traces arranged from the inside to the outside, each semicircular conductive trace having a first end and a second end, wherein the first ends of the first semicircular conductive traces of the first and second winding portions are coupled to each other; and
a coupling portion disposed in the insulating layer between the first and second winding portions, comprising;
a first pair of connection layers, connecting the first ends of the second and third semicircular conductive traces of the first and second winding portions; and
a second pair of connection layers, connecting the second ends of the first and second semicircular conductive traces of the first and second winding portions;
wherein the adjacent semicircular conductive traces of each winding portion have a trace line space and the outer trace line space is wider than the inner trace line space.
1 Assignment
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Accused Products
Abstract
An inductor comprises first and second winding portions symmetrically arranged in an insulating layer on a substrate. Each winding portion comprises first, second and third semicircular conductive traces arranged in concentricity from the inside to the outside. Each semicircular conductive trace has first and second ends, in which the first ends of the first semicircular conductive traces of the first and second winding portions are coupled to each other. A coupling portion comprises a first pair of connection layers cross-connecting the first ends of the second and third semicircular conductive traces of both winding portions and a second pair of connection layers cross-connecting the second ends of the first and second semicircular conductive traces of both winding portions. The adjacent semicircular conductive traces of each winding portion have a trace line space therebetween and the relatively outer trace line space is wider than the relatively inner trace line space.
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Citations
20 Claims
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1. An inductor, comprising:
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an insulating layer disposed on a substrate; first and second winding portions symmetrically arranged in the insulating layer, each winding portion comprising first, second and third semicircular conductive traces arranged from the inside to the outside, each semicircular conductive trace having a first end and a second end, wherein the first ends of the first semicircular conductive traces of the first and second winding portions are coupled to each other; and a coupling portion disposed in the insulating layer between the first and second winding portions, comprising; a first pair of connection layers, connecting the first ends of the second and third semicircular conductive traces of the first and second winding portions; and a second pair of connection layers, connecting the second ends of the first and second semicircular conductive traces of the first and second winding portions; wherein the adjacent semicircular conductive traces of each winding portion have a trace line space and the outer trace line space is wider than the inner trace line space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13)
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10. An inductor, comprising:
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an insulating layer; a plurality of semicircular conductive traces disposed in the insulating layer and arranged in concentricity, each semicircular conductive trace having a first end and a second end, wherein the first ends of the two inmost semicircular conductive traces are coupled to each other; at least one first pair of connection layers, connected to the first ends of the semicircular conductive traces; and at least one second pair of connection layers, connected to the second ends of the semicircular conductive traces; wherein the adjacent semicircular conductive traces have a trace line space and the outer trace line space is wider than the inner trace line space. - View Dependent Claims (11, 12)
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14. An inductor, comprising:
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an insulating layer; a first winding portion disposed in the insulating layer and comprising a plurality of semicircular conductive traces; a second winding portion disposed in the insulating layer and comprising a plurality of semicircular conductive traces, wherein the second winding portion is symmetrical to the first winding portion; two additional semicircular conductive traces located in a region outside the area surrounded by he first and second winding portions and disposed in the insulating layer, wherein the additional semicircular conductive traces are electrically connected to the first and second winding portions; wherein the trace line space between one additional semicircular conductive trace and its corresponding winding portion is wider than the line space between two adjacent semicircular conductive traces of the first or second winding portion. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification