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:
Mar. 31, 2026
Filed:
Jun. 13, 2023
Allegro Microsystems, Llc, Manchester, NH (US);
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Paolo Campiglio, Montreuil, FR;
Doan Nguyen BA, Nanterre, FR;
Maxime Rioult, Massy, FR;
Aurélie Solignac, Massy, FR;
Jean-Michel Daga, Bourg-la-Reine, FR;
Allegro MicroSystems, LLC, Manchester, NH (US);
Commissariat à l'énergie atomique et aux énergies alternatives, Paris, FR;
Abstract
In one aspect, a method includes manufacturing a tunneling magnetoresistance (TMR) element to sense out-of-plane changes in magnetic field intensity in a magnetic field. The manufacturing includes depositing a plurality of antiferromagnetic layers having magnetization directions alternating by layer between a first direction and a second direction opposite the first direction. A top layer of the plurality of antiferromagnetic layers has a magnetization direction in the first direction. The manufacturing also includes depositing a ferromagnetic layer directly on the top layer; depositing a first multilayer structure directly on the ferromagnetic layer; depositing a metal layer directly on the first multilayer structure; and depositing a second multilayer structure directly on the metal layer. The ferromagnetic layer, the first multilayer structure, and the second multilayer structure are each parallel to an x-y plane and the first direction is either in a z-direction or in a −z direction.