The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2022
Filed:
Jan. 31, 2020
Sensitec Gmbh, Wetzlar, DE;
Johannes Paul, Mainz, DE;
Jürgen Wahrhusen, Nieder-Hilbersheim, DE;
SENSITEC GMBH, Welzlar, DE;
Abstract
An arrangement of at least two adjacently arranged layer structures is provided for a magnetoresistive magnetic field sensor. Each layer structure has at least one antiferromagnetic layer, and a first ferromagnetic layer with a first magnetic moment. Exchange coupling is present between the antiferromagnetic layer and the first ferromagnetic layer. A second ferromagnetic layer with a second magnetic moment is included, wherein the second ferromagnetic layer is antiparallel coupled to the first ferromagnetic layer via a non-magnetic coupling layer arranged between the first and second ferromagnetic layers. The magnetisation of the corresponding first and corresponding second ferromagnetic layers of the adjacently arranged layer structures differs from one another, and in particular is of substantially mutually opposed orientation. Also provided is a magnetoresistive magnetic field sensor with such an arrangement of layer structures and a method for producing the arrangement of layer structures and the magnetoresistive magnetic field sensor.