发明申请
- 专利标题: MAGNETIC MEMORY DEVICE
- 专利标题(中): 磁记忆装置
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申请号: US11609487申请日: 2006-12-12
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公开(公告)号: US20080002459A1公开(公告)日: 2008-01-03
- 发明人: Yoshiaki FUKUZUMI , Toshihiko Nagase , Yoshiaki Asao
- 申请人: Yoshiaki FUKUZUMI , Toshihiko Nagase , Yoshiaki Asao
- 优先权: JP2006-178391 20060628
- 主分类号: G11C11/00
- IPC分类号: G11C11/00 ; G11C11/24
摘要:
A magnetic memory device includes a magnetization fixed layer provided above a semiconductor substrate surface and having a fixed magnetization direction. A first magnetization free layer is provided above the magnetization fixed layer, has variable magnetization direction, and has an easy magnetization axis extending along a plane intersecting the substrate surface and along a direction neither parallel nor perpendicular to the substrate surface. A second magnetization free layer is provided above the first magnetization free layer, has a magnetization that antiferromagnetically couples with the first magnetization free layer. A first write line is placed above and electrically connected to the second magnetization free layer, and extends in a direction that pierces the plane. A second write line faces the first and/or second magnetization free layer, and extends along the substrate surface and the plane and in a direction perpendicular to the first write line.
公开/授权文献
- US07505306B2 Magnetic memory device 公开/授权日:2009-03-17
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