Invention Grant
- Patent Title: Magnetic junction device having an inter-layer stack between a hard magnetic layer and a reference layer, and associated magnetic random access memory
-
Application No.: US16137336Application Date: 2018-09-20
-
Publication No.: US10573688B2Publication Date: 2020-02-25
- Inventor: Johan Swerts
- Applicant: IMEC vzw
- Applicant Address: BE Leuven
- Assignee: IMEC vzw
- Current Assignee: IMEC vzw
- Current Assignee Address: BE Leuven
- Agency: Knobbe, Martens, Olson & Bear LLP
- Priority: EP17192068 20170920
- Main IPC: H01L43/10
- IPC: H01L43/10 ; H01L43/08 ; H01F10/32 ; G11C11/16 ; H01L43/02 ; H01L27/22

Abstract:
The disclosed technology generally relates to magnetic devices, and more particular to a magnetic structure, and a magnetic tunnel junction device and a magnetic random access memory including the magnetic structure. According to an aspect, a magnetic structure for a magnetic tunnel junction (MTJ) device includes a free layer, a tunnel barrier layer, a reference layer, a hard magnetic layer, and an inter-layer stack arranged between the hard magnetic layer and the reference layer. The inter-layer stack includes a first ferromagnetic sub-layer, a second ferromagnetic sub-layer and a non-magnetic spacer sub-layer. The non-magnetic spacer sub-layer is arranged in contact with and between the first ferromagnetic sub-layer and the second ferromagnetic sub-layer and is adapted to provide a ferromagnetic coupling of a magnetization of the first ferromagnetic sub-layer and a magnetization of the second ferromagnetic sub-layer. A magnetization direction of the reference layer is fixed by the hard magnetic layer and the inter-layer stack.
Public/Granted literature
Information query
IPC分类: