Planar inductor
First Claim
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1. A method of making a planar inductor device comprising:
- forming at least one essentially flat spiral-shaped coil deposited on a surface of a flat carrier;
forming an insulant window frame fixed to the surface of the carrier so as to form a border encircling at least a portion of the spiral-shaped coil; and
forming a coating of ferromagnetic material on the surface of the flat carrier and on a portion of the spiral-shaped coil within the border of the insulant window frame.
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Abstract
A planar inductor having at least a helical coil and a coating of ferromagnetic material deposited on a flat carrier. The inductance and/or the magnetic coupling of a plurality of coils or windings of the inductor can be set precisely through the ferromagnetic material, which is inside an insulant window that is fixed to the carrier, being deposited on the carrier during the coating process.
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Citations
9 Claims
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1. A method of making a planar inductor device comprising:
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forming at least one essentially flat spiral-shaped coil deposited on a surface of a flat carrier;
forming an insulant window frame fixed to the surface of the carrier so as to form a border encircling at least a portion of the spiral-shaped coil; and
forming a coating of ferromagnetic material on the surface of the flat carrier and on a portion of the spiral-shaped coil within the border of the insulant window frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification