发明申请
- 专利标题: RECORDING METHOD FOR MAGNETIC MEMORY DEVICE
- 专利标题(中): 磁记忆装置记录方法
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申请号: US12937325申请日: 2009-04-15
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公开(公告)号: US20110032744A1公开(公告)日: 2011-02-10
- 发明人: Hiroyuki Ohmori , Masanori Hosomi , Minoru Ikarashi , Tetsuya Yamamoto , Kazutaka Yamane , Yuki Oishi , Hiroshi Kano
- 申请人: Hiroyuki Ohmori , Masanori Hosomi , Minoru Ikarashi , Tetsuya Yamamoto , Kazutaka Yamane , Yuki Oishi , Hiroshi Kano
- 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: JP2008-108479 20080418
- 国际申请: PCT/JP2009/057622 WO 20090415
- 主分类号: G11C11/22
- IPC分类号: G11C11/22
摘要:
[Object] To provide a recording method for a magnetic memory device including a recording layer that holds information as a magnetization direction of a magnetic body and a magnetization reference layer that is provided with respect to the recording layer with an insulation layer interposed therebetween, the magnetic memory device being recorded with information by a current flowing between the recording layer and the magnetization reference layer via the insulation layer, the recording method being capable of maintaining, even when a write pulse considerably higher than an inversion threshold value is applied, the same level of error rate as in a case where a write pulse a little higher than the inversion threshold value is applied.[Solving Means] A recording method for a magnetic memory device includes applying, when recording one piece of information, one or more main pulses and one or more sub-pulses in the same direction and applying the one or more sub-pulses after the one or more main pulses, the one or more main pulses each being a pulse that has a sufficient pulse height and pulse width to record information, the one or more sub-pulses each being a pulse that satisfies at least one of conditions that a pulse width is shorter than that of the one or more main pulses and that a pulse height is smaller than that of the one or more main pulses.
公开/授权文献
- US08169818B2 Recording method for magnetic memory device 公开/授权日:2012-05-01
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