Active under shielding for coils and transformers
AssigneeInfineon Technologies AG
InventorsMarcus Nuebling, Mathias Racki
Life of this patent
Estimating the term…
Abstract
An example circuit includes a coil structure located on at least a first layer of an integrated circuit (IC); and a circuit component comprising conduction paths. The conduction paths are located on one or more layers separate from the first layer and the first layer and the one or more layers form parallel planes. The conduction paths of the circuit component are oriented to avoid eddy currents in the conduction paths caused by an electric current through the coil structure and form a patterned shield. At least some of the conduction paths define an area, and the coil structure is located within the defined area.
Claims15
A circuit comprising:
- a coil structure located on at least a first layer of an integrated circuit (IC);
- and
- a circuit component comprising conduction paths, wherein:
- the conduction paths are located on one or more layers separate from the first layer,
- the first layer and the one or more layers form parallel planes,
- the conduction paths of the circuit component are oriented to avoid eddy currents in the conduction paths caused by an electric current through the coil structure,
- at least some of the conduction paths define an area, and
- the coil structure is located within the defined area.
A circuit comprising:
- a coil structure located on at least a first layer of an integrated circuit (IC);
- a patterned shield located on a second layer separate from the first layer, wherein:
- the first layer and the second layer form parallel planes,
- the patterned shield comprises a plurality of first conduction paths oriented to avoid eddy currents caused by electric current through the coil structure,
- the plurality of first conduction paths defines a first area, and
- a circuit component comprising a plurality of second conduction paths, wherein:
- the plurality of second conduction paths is located on one or more component layers separate from the first layer and separate from the second layer and are electrically isolated from the patterned shield,
- the first layer, the second layer and the one or more component layers form parallel planes,
- the plurality of second conduction paths of the circuit component is oriented to avoid eddy currents in the second conduction paths caused by the electric current through the coil structure,
- at least some of the plurality of second conduction paths define a second area, and
- the coil structure is located within the defined second area and within the defined first area.
Dependencies are inferred from the claim text.