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. 02, 2021
Filed:
Feb. 27, 2018
Hitachi High-tech Corporation, Tokyo, JP;
HITACHI HIGH-TECH CORPORATION, Tokyo, JP;
Abstract
A magnetic tunnel junction device includes a first ferromagnetic layer, a tunnel barrier that is in contact with the first ferromagnetic layer, and a synthetic ferrimagnetic reference layer that is in contact with the tunnel barrier while being in the other side of the first ferromagnetic layer, in which the synthetic ferrimagnetic reference layer includes a second ferromagnetic layer that has a first magnetization direction while being in contact with the tunnel barrier, a magnetic layer that has a second magnetization direction which is anti-parallel to the first magnetization direction, and a first nonmagnetic layer that is interposed between the second ferromagnetic layer and the magnetic layer, and lateral dimensions of the magnetic layer of the synthetic ferrimagnetic reference layer are made larger than lateral dimensions of the first ferromagnetic layer and the second ferromagnetic layer.