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: US12101607申请日: 2008-04-11
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公开(公告)号: US20080197434A1公开(公告)日: 2008-08-21
- 发明人: Yoshihiro Kato , Katsumi Okayama , Kaoru Kobayashi , Tetsuya Yamamoto , Minoru Ikarashi
- 申请人: Yoshihiro Kato , Katsumi Okayama , Kaoru Kobayashi , Tetsuya Yamamoto , Minoru Ikarashi
- 申请人地址: JP Tokyo
- 专利权人: SONY CORPORATION
- 当前专利权人: SONY CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2002-363199 20021216
- 主分类号: H01L23/552
- IPC分类号: H01L23/552 ; H01L29/82
摘要:
A magnetic memory device in which an MRAM element is magnetically shielded from large external magnetic fields. The magnetic memory device includes: a substrate; a magnetic random access memory mounted on the substrate, the magnetic random access memory including a memory element having a magnetized pinned layer with fixed direction of magnetization and a magnetic layer with changeable direction of magnetization stacked on one another; another element mounted on the substrate; and a pair of magnetic shielding layers which magnetically shield the memory element, the magnetic shielding layers located relatively above and below the memory element and within a region corresponding to an area occupied by the memory element.
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