发明公开
EP2942780A1 Multi-bit MRAM cell and method for writing and reading to such MRAM cell
审中-公开
多比特MRAM单元和写入的方法和这样的MRAM单元的读
- 专利标题: Multi-bit MRAM cell and method for writing and reading to such MRAM cell
- 专利标题(中): 多比特MRAM单元和写入的方法和这样的MRAM单元的读
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申请号: EP14290144.6申请日: 2014-05-09
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公开(公告)号: EP2942780A1公开(公告)日: 2015-11-11
- 发明人: Stainer, Quentin
- 申请人: Crocus Technology S.A.
- 申请人地址: Place Robert Schuman 5 38025 Grenoble Cedex FR
- 专利权人: Crocus Technology S.A.
- 当前专利权人: Crocus Technology S.A.
- 当前专利权人地址: Place Robert Schuman 5 38025 Grenoble Cedex FR
- 代理机构: P&TS SA (AG, Ltd.)
- 主分类号: G11C11/16
- IPC分类号: G11C11/16 ; G11C11/56 ; G11C11/15
摘要:
The present disclosure concerns a multi-bit magnetic random access memory (MRAM) cell (1) comprising a magnetic tunnel junction (2) including: a first magnetic storage layer (231), a second magnetic storage layer (233), a magnetic sense layer (211), a first spacer layer (221) between the first magnetic storage layer (231) and the magnetic sense layer (211), and a second spacer layer (222) between the second magnetic storage layer (233) and the sense layer (211); the first and second storage magnetization (232, 234) being switchable between m directions to store data corresponding to one of m 2 logic states, with m>2. The present disclosure further concerns a method for a method for writing and reading to the MRAM cell and to memory devices including multi-bit MRAM cells.
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