发明申请
- 专利标题: RESISTANCE CHANGE MEMORY DEVICE
- 专利标题(中): 电阻变化存储器件
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申请号: US11761397申请日: 2007-06-12
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公开(公告)号: US20070285967A1公开(公告)日: 2007-12-13
- 发明人: Haruki Toda , Koichi Kubo
- 申请人: Haruki Toda , Koichi Kubo
- 申请人地址: JP Tokyo 105-8001
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JP Tokyo 105-8001
- 主分类号: G11C11/36
- IPC分类号: G11C11/36
摘要:
A resistance change memory device including: a semiconductor substrate; at least one cell array formed above the semiconductor substrate, each memory cell having a stack structure of a variable resistance element and an access element, the access element having such an off-state resistance value in a certain voltage range that is ten times or more as high as that in a select state; and a read/write circuit formed on the semiconductor substrate as underlying the cell array, wherein the variable resistance element comprises a recording layer formed of a first composite compound expressed by AxMyOz (where “A” and “M” are cation elements different from each other; “O” oxygen; and 0.5≦x≦1.5, 0.5≦y≦2.5 and 1.5≦z≦4.5) and a second composite compound containing at least one transition element and a cavity site for housing a cation ion.
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