METHOD FOR FORMING AN INDUCTOR
First Claim
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1. A method of fabricating an inductor comprising:
- forming a magnetic material on a substrate;
forming an insulator of organic material on the magnetic material; and
forming an inductor pattern on the insulator.
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Abstract
A spiral inductor fabricated above a semiconductor substrate provides a large inductance while occupying only a small surface area. Including a layer of magnetic material above and below the inductor increases the inductance of the inductor. The magnetic material also acts as barrier that confines electronic noise generated in the spiral inductor to the area occupied by the spiral inductor. Inductance in a pair of stacked spiral inductors is increased by including a layer of magnetic material between the stacked spiral inductors.
23 Citations
40 Claims
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1. A method of fabricating an inductor comprising:
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forming a magnetic material on a substrate; forming an insulator of organic material on the magnetic material; and forming an inductor pattern on the insulator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of fabricating an inductor comprising:
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depositing a first magnetic material on a substrate; forming a first insulator of organic material on the first magnetic material; forming an inductor pattern on the first insulator material wherein the inductor pattern comprises gold, forming a second insulator on the inductor pattern; and depositing a second magnetic material on the second insulator. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method of fabricating an inductor comprising:
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depositing a first magnetic material on a silicon substrate; depositing a first insulating material on the first magnetic material; forming an inductor pattern from gold on the first insulating material; depositing a second insulating material on the inductor pattern; and depositing a second magnetic material on the second insulating material. - View Dependent Claims (37, 38, 39, 40)
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- 35. The method of claim 35, wherein the first magnetic material comprises a ferromagnetic material.
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