- 专利标题: Magnetic memory element incorporating dual perpendicular enhancement layers
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申请号: US17156562申请日: 2021-01-23
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公开(公告)号: US11417836B2公开(公告)日: 2022-08-16
- 发明人: Yiming Huai , Zihui Wang
- 申请人: Avalanche Technology, Inc.
- 申请人地址: US CA Fremont
- 专利权人: Avalanche Technology, Inc.
- 当前专利权人: Avalanche Technology, Inc.
- 当前专利权人地址: US CA Fremont
- 代理商 Bing K. Yen
- 主分类号: H01L43/08
- IPC分类号: H01L43/08 ; G11C11/15 ; G11C11/16 ; H01L43/02 ; H01F10/32 ; H01F41/30 ; H01L27/22 ; H01L29/66 ; H01L43/10 ; B82Y40/00
摘要:
The present invention is directed to a magnetic memory element including a magnetic free layer structure incorporating three magnetic free layers separated by two perpendicular enhancement layers (PELs) and having a variable magnetization direction substantially perpendicular to layer planes thereof; an insulating tunnel junction layer formed adjacent to the magnetic free layer structure; a first magnetic reference layer formed adjacent to the insulating tunnel junction layer opposite the magnetic free layer structure; a second magnetic reference layer separated from the first magnetic reference layer by a third perpendicular enhancement layer; an anti-ferromagnetic coupling layer formed adjacent to the second magnetic reference layer; and a magnetic fixed layer formed adjacent to the anti-ferromagnetic coupling layer. The first and second magnetic reference layers have a first invariable magnetization direction substantially perpendicular to layer planes thereof. The magnetic fixed layer has a second invariable magnetization direction substantially opposite to the first invariable magnetization direction.
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