Patent ID: 11860250
Assignee: CROCUS TECHNOLOGY SA
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. Magnetic angular sensor device configured to sense an external magnetic field, the sensor device comprising a plurality of magnetic sensor elements,
each sensor element comprising a magnetic tunnel junction containing a ferromagnetic reference layer having a reference magnetization that is pinned in a pinning direction, a ferromagnetic sense layer having a sense magnetization that can be oriented in an external magnetic field, and a tunnel barrier spacer layer, between the reference layer and the sense layer;
wherein the sense layer of at least a portion of said plurality of sensor elements comprises an in-plane uniaxial sense magnetic anisotropy having an easy axis that is aligned substantially parallel to the pinning direction, such that an angular deviation in the alignment of the direction of the sense magnetization in the external magnetic field is equal or less than 0.5° within a range of external magnetic field of 200 Oe.