Transformer for integrated circuits

Details Transformer for integrated circuits Transformer for integrated circuits

1998-11-25

2000-02-29

Donovan, Lincoln

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

336223, 336232, 296021, H01F 500

Patent

active

060314451

ABSTRACT:
A invention provides a transformer for use in integrated circuits, comprising four layers of conductive lines, separated from each other by first, second and third insulating layers. First conductive vias traverse the second insulating layer to connect said second and third pluralities of conducting lines, to form a first winding. Second conductive vias traverse the first, second and third insulating layers to connect said first and fourth pluralities of conducting lines to form a second winding, about and approximately concentric with said first winding.

REFERENCES:
patent: 4729510 (1988-03-01), Landis
patent: 5372967 (1994-12-01), Sundaram et al.
patent: 5446311 (1995-08-01), Ewen et al.
patent: 5612660 (1997-03-01), Takimoto

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