Planar hall effect sensors

Lior Klein (Inventor), Mordechai Schultz (Inventor), MOR Vladislav (Inventor), Asaf Grosz (Inventor), Shai Amrusi (Inventor), Igor Faivinov (Inventor)

Research output: Patent

Abstract

A planar Hall effect (PHE) sensor for measuring at an external magnetic field includes a plurality of elongated magnetic regions. Each magnetic region includes a ferromagnetic material that is magnetized along a longitudinal axis. The magnetic regions cross one another at an overlap region that is characterized by a plurality of easy magnetic axes. At least two pairs of electrical leads are each aligned along one of the easy magnetic axes. A current source may be connected to a first pair of the electrical leads to cause a current to flow through the overlap region along a first easy magnetic axis. A voltage measurement device may be connected to another pair of the electrical leads to measure a PHE voltage that is generated by a component of the external magnetic field that is perpendicular to the easy magnetic axis along which the overlap region is magnetized.
Original languageEnglish
Patent number10921389
StatePublished - 16 Feb 2021

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