Printed wiring board with integrated coil inductor

Details Printed wiring board with integrated coil inductor Printed wiring board with integrated coil inductor

1998-05-21

1999-11-02

Picard, Leo P.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361783, 361818, 333 12, 333181, 336200, 174262, H05K 706, H05K 900

Patent

active

059782315

ABSTRACT:
An insulative magnetic layer is disposed between a power source conductor layer and a ground conductor layer of a printed-wiring board. Two pieces of conductors are formed by cutting out a part of the power source conductor layer. Another two pieces of conductors are formed by cutting out a part of the ground conductor layer. The former conductors and the latter conductors are connected by five viaholes. A spiral coil inductor of a spiral form is formed in this way. This inductor has the strengthened inductance owing to the insulative magnetic layer provided therein.

REFERENCES:
patent: 4984146 (1991-01-01), Black et al.
patent: 5055816 (1991-10-01), Altman et al.
patent: 5132650 (1992-07-01), Ikeda
patent: 5479695 (1996-01-01), Grader et al.

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