Method of forming a three-layer structural spiral inductor

Details Method of forming a three-layer structural spiral inductor Method of forming a three-layer structural spiral inductor

1992-05-29

1994-10-25

Picard, Leo P.

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

336232, 336188, 333180, 333168, 333177, H01F 500

Patent

active

053593154

ABSTRACT:
A selected inductance can be provided by a three-layer structural spiral inductor having an inductor conductive part disposed between two ground electrodes within an electric insulating substrate. This is carried out by eliminating a particular portion of one of those ground electrodes formed on the outer surface of the substrate until a desired inductance is obtained, beginning at a portion of such electrode corresponding to an exposed part of a through hole joint which is electrically connected to an inner peripheral end of a spiral inductor conductive part.

REFERENCES:
patent: 3975690 (1976-08-01), Fleming
patent: 4117438 (1978-09-01), Kim et al.
patent: 4494083 (1985-01-01), Josefsson et al.
patent: 5057798 (1991-10-01), Moye et al.

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