Article comprising an inductive element with a magnetic thin film
AssigneeLucent Technologies Inc.
InventorsVladislav Korenivski, Robert Bruce van Dover
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Abstract
A thin film inductive element according to this invention comprises an elongate conductor, and spaced apart magnetic strips that substantially surround the conductor, with dielectric material between the magnetic strips and the conductor. The inductive element can have relatively high inductance and low loss, can be used in linear form, meander on spiral form, or any other desired form, is suitable for use at RF frequencies, and can be integrated with conventional circuitry. Criteria for choosing the length of the magnetic strips and the thickness of the dielectric are disclosed.
Claims11
An article comprising a substrate having a major surface, with a thin film inductive element thereon, the inductive element comprising an elongate conductor, a multiplicity of spaced apart conductive lower magnetic strips of length l.sub.m disposed on the major surface, and a corresponding multiplicity of spaced apart conductive upper magnetic strips of length l.sub.m, with the elongate conductor disposed between the lower and upper magnetic strips;
- CHARACTERIZED IN THAT
- the inductive element further comprises dielectric material of thickness t.sub.i disposed between the spaced apart lower magnetic strips and the elongate conductor, and between the elongate conductor and the spaced apart upper magnetic strips.
Dependencies are inferred from the claim text.