Patent ID: 9551764
Date: 2017-01-24
CPC Classifications: G01D,G01R,H01L

Claim:
1. A magnetic field measuring device comprising: a first semiconductor body having a surface formed in a first x-y plane, the surface of the first semiconductor body having two magnetic field sensors spaced apart and arranged along a first connecting line, and the magnetic field sensors respectively measure a z-component of a magnetic field, the x-direction and the y-direction and the z-direction each being orthogonally to one another; and a first magnet with a planar main extension surface formed in a second x-y plane and with a plane of symmetry formed in a y-z plane, wherein the magnetization direction runs substantially or exactly parallel to the main extension surface and substantially or exactly parallel to the plane of symmetry, wherein the first semiconductor body and the first magnet are rigidly fixed to one another, wherein the first semiconductor body is arranged offset with respect to the first magnet in the x-y plane, wherein an offset formed in the z-direction between the first x-y plane and the second x-y plane is smaller than a thickness of the first magnet formed in the z-direction, wherein both magnetic field sensors are spaced apart in the x-z plane and are arranged in the x-z plane along an extension of a north pole or along an extension of a south pole, and wherein, in a z-component of the magnetic field of the first magnet asymmetrical to the plane of symmetry, the magnetic field sensors mutually form different signals in order to measure the signals differentially.