On-chip inductive structure

Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil

Reexamination Certificate

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C336S232000

Reexamination Certificate

active

06867677

ABSTRACT:
An on-chip inductive structure, such as the load inductors of a push-pull amplifier, comprises a substrate and first and second inductors connected in series and formed on the substrate. The inductors spiral in opposite sense about a common center in substantially the same plane.

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John R. Long, “Monolithic Transformers for Silicon RF IC Design”, IEEE Journal of Solid-State Circuits, vol. 35, No. 9, Sep. 2000.
Simburger Werner, “A Monolithic Transformer Coupled 5-W Silicon Power Amplifier with 59% PAE at 0.9 GHz”, IEEE Journal of Solid-State Circuits, vol. 34, No. 12, Dec., 1999.

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