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:
Aug. 25, 2020
Filed:
Aug. 27, 2018
Allegro Microsystems, Llc, Manchester, NH (US);
Paolo Campiglio, Arcueil, FR;
Amal Hamdache, Limours, FR;
Allegro MicroSystems, LLC, Manchester, NH (US);
Abstract
A magnetoresistance structure includes a first magnetoresistance element and a second magnetoresistance element, wherein the first magnetoresistance element is formed on a surface of the second magnetoresistance element. The first magnetoresistance element comprises a free layer, a bias stack configured to bias a magnetic alignment of the free layer to a first direction in the absence of an external magnetic field, and a reference stack having a reference direction substantially orthogonal to the first direction. The magnetoresistance structure may be used to form a two- or three-dimensional magnetic field sensor.