Invention Grant
- Patent Title: Storage device, manufacturing method therefor, and storage apparatus
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Application No.: US16426237Application Date: 2019-05-30
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Publication No.: US10861522B2Publication Date: 2020-12-08
- Inventor: Hiroyuki Ohmori , Masanori Hosomi , Kazuhiro Bessho , Yutaka Higo , Kazutaka Yamane , Hiroyuki Uchida
- Applicant: SONY CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Chip Law Group
- Priority: JP2015-043850 20150305
- Main IPC: G11C11/16
- IPC: G11C11/16 ; H01L43/08 ; H01L43/10 ; G11C11/56 ; H01L43/12 ; H01F10/32 ; H01L27/22 ; G11B5/39

Abstract:
Provided is a storage device that includes a magnetization fixed layer, an intermediate layer, and a storage layer. The magnetization fixed layer has magnetization in an orientation perpendicular to a film surface and a constant magnetization direction. The intermediate layer includes a non-magnetic body and is disposed on the magnetization fixed layer. The storage layer includes an outer circumferential portion and a center portion. The storage layer is disposed to face the magnetization fixed layer with the intermediate layer sandwiched therebetween, and is configured to have a variable magnetization direction. The outer circumferential portion has magnetization in an orientation perpendicular to a film surface, the center portion is formed by being surrounded by the outer circumferential portion and having magnetization inclined from the orientation perpendicular to the film surface.
Public/Granted literature
- US20190279698A1 STORAGE DEVICE, MANUFACTURING METHOD THEREFOR, AND STORAGE APPARATUS Public/Granted day:2019-09-12
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