发明授权
US06358757B2 Method for forming magnetic memory with structures that prevent disruptions to magnetization in sense layers
有权
用于形成具有防止感测层中的磁化破坏的结构的磁存储器的方法
- 专利标题: Method for forming magnetic memory with structures that prevent disruptions to magnetization in sense layers
- 专利标题(中): 用于形成具有防止感测层中的磁化破坏的结构的磁存储器的方法
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申请号: US09824810申请日: 2001-04-03
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公开(公告)号: US06358757B2公开(公告)日: 2002-03-19
- 发明人: Thomas C. Anthony
- 申请人: Thomas C. Anthony
- 主分类号: H01L2100
- IPC分类号: H01L2100
摘要:
A magnetic memory cell is disclosed having a structure that prevents disruptions to the magnetization in the sense layer of the magnetic memory cell. In one embodiment, the structure includes a high permeability magnetic film that serves as a keeper for the sense layer magnetization. The keeper structure provides a flux closure path that directs demagnetization fields away from the sense layer. In another embodiment, the structure contains a hard ferromagnetic film that applies a local magnetic field to the sense layer in the magnetic memory cell.
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