Method for generating enhanced etched inductor elements

Details Method for generating enhanced etched inductor elements Method for generating enhanced etched inductor elements

1997-05-09

2000-06-13

Lam, Cathy F.

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

336223, 336232, 428209, 428901, H01F 500

Patent

active

06075432&

ABSTRACT:
An inductor element comprises a copper pattern on a PCB on which a magnetic powder is deposited. The inductor is formed according to the method of the invention by etching a copper layer of a PCB in a desired pattern. A magnetic powder-loaded ink is then screened or stenciled over the pattern of the inductor elements etched in the copper layer of the PCB. The resulting inductor element is enhanced, having increased low frequency inductance and increased high frequency loss. Multiple inductor elements may be formed on a single PCB in a single process without requiring further cost or steps in the method.

REFERENCES:
patent: 3367795 (1968-02-01), Stutzman
patent: 3798059 (1974-03-01), Astle et al.
patent: 4942373 (1990-07-01), Ozawa et al.
patent: 5398400 (1995-03-01), Breen
patent: 5529831 (1996-06-01), Waga et al.

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