Patent ID: 9354281
Filing Date: 2016-05-31
CPC Classification: G01R,H01L

Claim Text:
1. A magnetic field sensor for measuring a magnetic field at a sensor location, comprising: a printed circuit board made of an electrically insulating material, having a top surface and a bottom surface; a magnetic field sensor element situated directly on the top surface of the printed circuit board and directly connected to at least two first printed conductors situated on the bottom surface of the printed circuit board via electrical contacts, the at least two first printed conductors being situated parallel to one another; and two second printed conductors to generate a test magnetic field, the two second printed conductors being situated on the top surface of the printed circuit board and configured to generate a predetermined test magnetic field when a calibration current is applied at the sensor location via the second printed conductor, the magnetic field sensor element being situated between the two second printed conductors and the two second printed conductors being situated parallel to one another, wherein an extension of the two parallel printed conductors in the direction along a side edge of the magnetic field sensor element on whose side they are situated is at least five times greater than their extension in the direction of a side edge of the magnetic field sensor element situated perpendicularly thereto, wherein each of the at least two first printed conductors is situated perpendicular to each of the two second printed conductors, and each of the at least two first printed conductors is electrically insulated from each of the two second printed conductors.