Magnetic field sensor and magnetic field sensing method

A magnetic field sensor is disclosed that includes at least one magneto-resistive spin-valve sensor element configured to sense a first magnetic field component H1, and at least one AMR sensor element configured to sense a second magnetic field component H2 which is perpendicular to the first magnet...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Raberg, Wolfgang
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS ELECTRIC CIRCUITS OR APPARATUS SPECIALLY DESIGNED FOR USE INEQUIPMENT FOR KILLING, STUNNING, OR GUIDING LIVING BEINGS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A magnetic field sensor is disclosed that includes at least one magneto-resistive spin-valve sensor element configured to sense a first magnetic field component H1, and at least one AMR sensor element configured to sense a second magnetic field component H2 which is perpendicular to the first magnetic field component H1. In one example the at least one magneto-resistive spin-valve sensor element is a tunnel magneto-resistive (TMR) or giant magneto-resistive (GMR) sensor, and in one example the AMR sensor element includes an antiferromagnetic layer coupled to a ferromagnetic layer generating a bias magnetization for the AMR sensor element.