Integrated sensor and magnetic field concentrator devices
AssigneeInfineon Technologies AG
InventorUdo Ausserlechner
Life of this patent
Estimating the term…
Abstract
Embodiments relate to integrated sensor and magnetic concentrator devices and methods. In one embodiment, an integrated sensor and magnetic field concentrator device comprises a sensor device comprising at least two xMR sensor elements spaced apart from each other on a surface of a die to define a first gap of about 5 millimeters (mm) or less; and a magnetic field concentrator disposed in the first gap and configured to guide magnetic flux from an external source in a direction perpendicular to the at least two xMR sensor elements.
Claims20
An integrated sensor and magnetic field concentrator device comprising:
- a sensor device comprising at least two xMR sensor elements spaced apart from each other on a surface of a die to define a first gap of about 5 millimeters (mm) or less;
- and
- a magnetic field concentrator disposed in the first gap and configured to guide magnetic flux from an external source in a direction perpendicular to the at least two xMR sensor elements.
A method comprising:
- providing an integrated sensor and magnetic field concentrator device, the sensor comprising first and second xMR sensor elements spaced apart by a gap of about 5 millimeters (mm) or less, and the magnetic field concentrator disposed in the gap;
- exposing the device to a magnetic field;
- and
- guiding a magnetic flux related to the magnetic field perpendicularly to the sensor by the magnetic field concentrator.
Dependencies are inferred from the claim text.