发明授权
- 专利标题: Magnetic memory
- 专利标题(中): 磁记忆
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申请号: US10893915申请日: 2004-07-20
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公开(公告)号: US06934184B2公开(公告)日: 2005-08-23
- 发明人: Minoru Amano , Tatsuya Kishi , Hiroaki Yoda , Yoshiaki Saito , Shigeki Takahashi , Tomomasa Ueda , Katsuya Nishiyama , Yoshiaki Asao , Yoshihisa Iwata
- 申请人: Minoru Amano , Tatsuya Kishi , Hiroaki Yoda , Yoshiaki Saito , Shigeki Takahashi , Tomomasa Ueda , Katsuya Nishiyama , Yoshiaki Asao , Yoshihisa Iwata
- 申请人地址: JP Tokyo
- 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
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权: JP2001-400049 20011228
- 主分类号: H01L27/105
- IPC分类号: H01L27/105 ; G11C11/15 ; H01L21/8246 ; H01L43/08
摘要:
A highly reliable magnetic memory exhibits enhanced data-holding stability at high storage density in a storage layer of a magnetoresistive effect element used for memory cells. A magnetic memory includes a memory cell array having first wirings, second wirings intersecting the first wirings and memory cells each provided at an intersection area of the corresponding first and second wirings. Each memory cell is selected when the corresponding first and second wirings are selected. Each memory cell includes a magnetoresistive effect element having a storage layer in which data is stored by magnetic fields generated when current flows the selected first and second wirings, a first magnetic member, having two ends, provided as partially surrounding each first wiring and the two ends being situated in a direction of easy axis of magnetization, to form a closed-loop magnetic circuitry with the storage layer, and a second magnetic member, having two ends, provided as partially surrounding each second wiring and the two ends being situated in a direction of hard axis of magnetization, to amplify magnetic fields applied to the storage layer in the direction of hard axis of magnetization. Each end of the first magnetic member is situated as closer than each end of the second magnetic member to the storage layer.
公开/授权文献
- US20040257866A1 Magnetic memory 公开/授权日:2004-12-23
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