Patent ID: 8207732

Claim:
A magneto-resistive sensor for measuring a magnetic field based on an anisotropic magneto-resistive (AMR) effect or a gigantic magneto-resistive (GMR) effect, comprising: a substrate; a plurality of resistors formed from magneto-resistive layer strips and arranged in form of a half or full bridge circuit on the substrate, said plurality of resistors having a resistance value that depends on a magnetic field strength, wherein at least one of the plurality of resistors includes a magneto-resistive layer strip with a shape anisotropy different from a shape anisotropy of another magneto-resistive layer strip for increasing a linear region on a characteristic curve describing a dependence of the resistance of a sensor on the magnetic field strength, the shape anisotropy being caused by differences in width of the magneto-resistive layer strips, the magneto-resistive layer strips having a same shape.