Integrated circuit transformer with inductor-substrate isolation

Details Integrated circuit transformer with inductor-substrate isolation Integrated circuit transformer with inductor-substrate isolation

1997-08-05

1999-10-19

Gellner, Michael L.

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

336232, 336223, H01F 500, H01F 2728

Patent

active

059695900

ABSTRACT:
An integrated circuit transformer includes multiple metal layers in the structure of an integrated circuit in which are formed a first spiral inductor and a second spiral inductor. The first spiral inductor is aligned with and beneath the second spiral inductor such that the first spiral inductor acts to magnetically excite the second spiral inductor, while shielding it from resistance losses to the substrate.

REFERENCES:
patent: 4959631 (1990-09-01), Hasegawa et al.
patent: 5420558 (1995-05-01), Ito et al.
patent: 5481131 (1996-01-01), Staudinger et al.
Yannis Tsividis, "Mixed Analog-Digital VLSI Devices and Technology", McGraw-Hill, pp. 168-170, 1996.

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