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.

Date of Patent:
Oct. 11, 2022

Filed:

Sep. 21, 2020
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Clemens Muehlenhoff, Munich, DE;

Wolfgang Raberg, Sauerlach, DE;

Dieter Suess, Vienna, AT;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/09 (2006.01); H01L 43/12 (2006.01);
U.S. Cl.
CPC ...
G01R 33/093 (2013.01); G01R 33/091 (2013.01); H01L 43/12 (2013.01);
Abstract

Example implementations are concerned with magnetoresistive sensors and with corresponding fabrication methods for magnetoresistive sensors. One example here relates to a magnetoresistive sensor having a layer stack. The layer stack comprises a reference layer having a reference magnetization, which is fixed and has a first magnetic orientation. The layer stack comprises a magnetically free layer. The magnetically free layer has a magnetically free magnetization. The magnetically free magnetization is variable in the presence of an external magnetic field. The magnetically free magnetization has a second magnetic orientation in a ground state. One of the first or the second magnetic orientation is oriented in-plane and the other is oriented out-of-plane. The layer stack comprises a metal multilayer. In this case, either the metal multilayer is arranged adjacent to the magnetically free layer, or the metal multilayer constitutes the magnetically free layer.


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