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US 2006/0220773 A1Published application
Spiral transformers and associated methods of operation
OwnerJun Su, Valluri Raoinventors
Life of this patent
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Abstract
In an embodiment, a transformer includes a first inductor electromagnetically coupled with a second inductor. The first and second inductors each have a spiral geometry in first and second areas, respectively, that are separated from each other on a surface of a substrate. In a method of operation, a second signal is generated in a second inductor through electromagnetic coupling with a first signal received by a first inductor.
Claims30
A transformer comprising:
- a first inductor comprising a spiral geometry in a first area on a planar surface of an integrated circuit substrate;
- and
- a second inductor comprising a spiral geometry in a second area on the planar surface of the substrate, the second area being separated from the first area by a separation distance.
An integrated circuit device comprising:
- an integrated circuit substrate comprising a planar surface;
- a first inductor comprising a spiral geometry in a first area of the planar surface of the substrate;
- and
- a second inductor comprising a spiral geometry in a second area of the planar surface of the substrate, the second area being separated from the first area by a separation distance, the first inductor and the second inductor comprising a transformer.
1 more element
A system comprising:
- a first inductor comprising a spiral geometry between a first terminal and a second terminal, the first inductor being located in a first area on a planar surface of an integrated circuit substrate;
- a second inductor comprising a spiral geometry between a third terminal and a fourth terminal, the second inductor being located in a second area on the planar surface of the substrate, the second area being separated from the first area by a separation distance;
- a first circuit coupled between the first terminal and the second terminal;
- and
- a second circuit coupled between the third terminal and the fourth terminal.
2 more elements
A method comprising:
- receiving a first signal in a first inductor, the first inductor comprising a spiral geometry in a first area on a planar surface of an integrated circuit substrate;
- generating a second signal in a second inductor from electromagnetic coupling with the first inductor, the second inductor comprising a spiral geometry in a second area on the planar surface of the substrate, the second area being separated from the first area by a separation distance.
Dependencies are inferred from the claim text.