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    Magnetic memory
    1.
    发明授权
    Magnetic memory 有权
    磁记忆

    公开(公告)号：US06717845B2

    公开(公告)日：2004-04-06

    申请号：US10345253

    申请日：2003-01-16

    申请人： Yoshiaki Saito ,  Katsuya Nishiyama ,  Shigeki Takahashi ,  Minoru Amano ,  Tomomasa Ueda ,  Hiroaki Yoda ,  Yoshiaki Asao ,  Yoshihisa Iwata ,  Tatsuya Kishi

    发明人： Yoshiaki Saito ,  Katsuya Nishiyama ,  Shigeki Takahashi ,  Minoru Amano ,  Tomomasa Ueda ,  Hiroaki Yoda ,  Yoshiaki Asao ,  Yoshihisa Iwata ,  Tatsuya Kishi

    IPC分类号： G11C1115

    CPC分类号： G11C11/16

    摘要： A magnetic memory includes: a magnetoresistance effect element having a magnetic recording layer; a first wiring extending in a first direction on or below the magnetoresistance effect element; a covering layer provided at least both sides of the first wiring, the covering layer being made of magnetic material, and the covering layer having a uniaxial anisotropy in the first direction along which a magnetization of the covering layer occurs easily; and a writing circuit configured to pass a current through the first wiring in order to record an information in the magnetic recording layer by a magnetic field generated by the current.

    摘要翻译： 磁存储器包括：具有磁记录层的磁阻效应元件; 在所述磁阻效应元件上或第二方向上延伸的第一布线; 所述覆盖层至少设置在所述第一布线的两侧，所述覆盖层由磁性材料制成，所述覆盖层在容易发生所述覆盖层的磁化的第一方向上具有单轴各向异性; 以及写入电路，被配置为使电流通过第一布线，以便通过由电流产生的磁场将信息记录在磁记录层中。

    Magnetic memory
    2.
    发明授权
    Magnetic memory 失效

    公开(公告)号：US06831857B2

    公开(公告)日：2004-12-14

    申请号：US10329417

    申请日：2002-12-27

    申请人： Minoru Amano ,  Tatsuya Kishi ,  Hiroaki Yoda ,  Yoshiaki Saito ,  Shigeki Takahashi ,  Tomomasa Ueda ,  Katsuya Nishiyama ,  Yoshiaki Asao ,  Yoshihisa Iwata

    发明人： Minoru Amano ,  Tatsuya Kishi ,  Hiroaki Yoda ,  Yoshiaki Saito ,  Shigeki Takahashi ,  Tomomasa Ueda ,  Katsuya Nishiyama ,  Yoshiaki Asao ,  Yoshihisa Iwata

    IPC分类号： G11C1115

    CPC分类号： G11C11/15

    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.

    Magnetic memory
    4.
    发明授权
    Magnetic memory 有权
    磁记忆

    公开(公告)号：US06831855B2

    公开(公告)日：2004-12-14

    申请号：US10345188

    申请日：2003-01-16

    申请人： Tatsuya Kishi ,  Minoru Amano ,  Yoshiaki Saito ,  Shigeki Takahashi ,  Katsuya Nishiyama ,  Yoshiaki Asao ,  Hiroaki Yoda ,  Tomomasa Ueda ,  Yoshihisa Iwata

    发明人： Tatsuya Kishi ,  Minoru Amano ,  Yoshiaki Saito ,  Shigeki Takahashi ,  Katsuya Nishiyama ,  Yoshiaki Asao ,  Hiroaki Yoda ,  Tomomasa Ueda ,  Yoshihisa Iwata

    IPC分类号： G11C1100

    CPC分类号： G11C11/16

    摘要： A magnetic memory includes: a magnetoresistance effect element having a magnetic recording layer; a first writing wiring extending in a first direction on or below the magnetoresistance effect element, a center of gravity of an axial cross section of the wiring being apart from a center of thickness at the center of gravity, and the center of gravity being eccentric toward the magnetoresistance effect element; and a writing circuit configured to pass a current through the first writing wiring in order to record an information in the magnetic recording layer by a magnetic field generated by the current.

    摘要翻译： 磁存储器包括：具有磁记录层的磁阻效应元件; 在磁阻效应元件上或其下方沿第一方向延伸的第一写入布线，布线的轴向横截面的重心与重心处的厚度中心分开，并且重心偏向 磁阻效应元件; 以及写入电路，其被配置为使电流通过所述第一写入布线，以便通过所述电流产生的磁场将信息记录在所述磁记录层中。

    Magnetic memory
    5.
    发明授权
    Magnetic memory 有权
    磁记忆

    公开(公告)号：US06807094B2

    公开(公告)日：2004-10-19

    申请号：US10769757

    申请日：2004-02-03

    申请人： Yoshiaki Saito ,  Katsuya Nishiyama ,  Shigeki Takahashi ,  Minoru Amano ,  Tomomasa Ueda ,  Hiroaki Yoda ,  Yoshiaki Asao ,  Yoshihisa Iwata ,  Tatsuya Kishi

    发明人： Yoshiaki Saito ,  Katsuya Nishiyama ,  Shigeki Takahashi ,  Minoru Amano ,  Tomomasa Ueda ,  Hiroaki Yoda ,  Yoshiaki Asao ,  Yoshihisa Iwata ,  Tatsuya Kishi

    IPC分类号： G11C1115

    CPC分类号： G11C11/16

    摘要： A magnetic memory includes a magnetoresistance effect element having a magnetic recording layer, a first wiring extending in a first direction on or below the magnetoresistance effect element, a covering layer provided on at least both sides of the first wiring, and a writing circuit configured to pass a current through the first wiring in order to record information in the magnetic recording layer by a magnetic field generated by the current. The covering layer is made of magnetic material and has a uniaxial anisotropy in the first direction, along which a magnetization of the covering layer occurs.

    摘要翻译： 磁存储器包括具有磁记录层的磁阻效应元件，在磁阻效应元件上或其下方沿第一方向延伸的第一布线，设置在第一布线的至少两侧的覆盖层，以及写入电路， 通过第一布线传递电流，以便通过电流产生的磁场将信息记录在磁记录层中。 覆盖层由磁性材料制成，并且在第一方向上具有单轴各向异性，沿着该方向发生覆盖层的磁化。

    Magnetic memory
    7.
    发明授权
    Magnetic memory 失效
    磁记忆

    公开(公告)号：US06934184B2

    公开(公告)日：2005-08-23

    申请号：US10893915

    申请日：2004-07-20

    申请人： Minoru Amano ,  Tatsuya Kishi ,  Hiroaki Yoda ,  Yoshiaki Saito ,  Shigeki Takahashi ,  Tomomasa Ueda ,  Katsuya Nishiyama ,  Yoshiaki Asao ,  Yoshihisa Iwata

    发明人： Minoru Amano ,  Tatsuya Kishi ,  Hiroaki Yoda ,  Yoshiaki Saito ,  Shigeki Takahashi ,  Tomomasa Ueda ,  Katsuya Nishiyama ,  Yoshiaki Asao ,  Yoshihisa Iwata

    IPC分类号： H01L27/105 ,  G11C11/15 ,  H01L21/8246 ,  H01L43/08

    CPC分类号： G11C11/15

    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.

    摘要翻译： 在用于存储单元的磁阻效应元件的存储层中，高度可靠的磁存储器在高存储密度下表现出增强的数据保持稳定性。 磁存储器包括具有第一布线的存储单元阵列，与第一布线相交的第二布线和各自设置在相应的第一布线和第二布线的交叉区域的存储单元。 当选择对应的第一和第二布线时，选择每个存储单元。 每个存储单元包括磁阻效应元件，其具有存储层，其中当电流流过所选择的第一和第二布线时，通过产生的磁场来存储数据;第一磁性构件，具有设置为部分地包围每个第一布线的两端， 端部位于容易的磁化轴的方向上，以形成具有存储层的闭环磁路，以及具有两端的第二磁性构件，其设置为部分地包围每个第二布线，并且两端位于 磁化强度轴的方向，放大沿着硬磁化轴的方向施加到存储层的磁场。 第一磁性构件的每个端部被定位成比第二磁性构件的每个端部更靠近存储层。

    Magnetic random access memory
    8.
    发明授权
    Magnetic random access memory 有权
    磁性随机存取存储器

    公开(公告)号：US06873023B2

    公开(公告)日：2005-03-29

    申请号：US10418047

    申请日：2003-04-18

    申请人： Yoshiaki Asao ,  Yoshihisa Iwata ,  Yoshiaki Saito ,  Hiroaki Yoda ,  Tomomasa Ueda ,  Minoru Amano ,  Shigeki Takahashi ,  Tatsuya Kishi

    发明人： Yoshiaki Asao ,  Yoshihisa Iwata ,  Yoshiaki Saito ,  Hiroaki Yoda ,  Tomomasa Ueda ,  Minoru Amano ,  Shigeki Takahashi ,  Tatsuya Kishi

    IPC分类号： G11C11/16 ,  H01L43/00

    CPC分类号： G11C11/16

    摘要： A write word line is disposed right under an MTJ element. The write word line extends in an X direction, and a lower surface of the line is coated with a yoke material which has a high permeability. A data selection line (read/write bit line) is disposed right on the MTJ element. A data selection line extends in a Y direction intersecting with the X direction, and an upper surface of the line is coated with the yoke material which has the high permeability. At a write operation time, a magnetic field generated by a write current flowing through a write word line B and data selection line functions on the MTJ element by the yoke material with good efficiency.

    摘要翻译： 写字线被放置在MTJ元素的正下方。 写字线在X方向上延伸，并且线的下表面涂覆有具有高磁导率的磁轭材料。 数据选择线（读/写位线）设置在MTJ元件上。 数据选择线在与X方向交叉的Y方向上延伸，并且线的上表面涂覆有具有高磁导率的磁轭材料。 在写操作时刻，通过写入字线B和数据选择线产生的写入电流产生的磁场通过磁轭材料以良好的效率在MTJ元件上起作用。

    Magnetic random access memory
    9.
    发明授权
    Magnetic random access memory 失效
    磁性随机存取存储器

    公开(公告)号：US07333359B2

    公开(公告)日：2008-02-19

    申请号：US10419873

    申请日：2003-04-22

    申请人： Yoshiaki Asao ,  Yoshihisa Iwata ,  Yoshiaki Saito ,  Hiroaki Yoda ,  Tomomasa Ueda ,  Minoru Amano ,  Shigeki Takahashi ,  Tatsuya Kishi

    发明人： Yoshiaki Asao ,  Yoshihisa Iwata ,  Yoshiaki Saito ,  Hiroaki Yoda ,  Tomomasa Ueda ,  Minoru Amano ,  Shigeki Takahashi ,  Tatsuya Kishi

    IPC分类号： G11C11/00

    CPC分类号： B82Y25/00 ,  G11C11/16 ,  H01F10/06 ,  H01F10/3254

    摘要： A write word line is disposed right under a MTJ element. The write word line extends in an X direction, and side and lower surfaces of the write word line are coated with a hard magnetic material and yoke material. The hard magnetic material is magnetized by a surplus current passed through the write word line, and a characteristic of the MTJ element is corrected by residual magnetization. A data selection line (read/write bit line) is disposed right on the MTJ element. The data selection line extends in a Y direction intersecting with the X direction, and a part of the surface of the data selection line is coated with the yoke material.

    摘要翻译： 写字线被放置在MTJ元素的正下方。 写字线在X方向上延伸，并且写字线的侧表面和下表面涂覆有硬磁材料和轭材料。 硬磁材料被通过写入字线的剩余电流磁化，并且通过剩余磁化来校正MTJ元件的特性。 数据选择线（读/写位线）设置在MTJ元件上。 数据选择线在与X方向相交的Y方向上延伸，并且数据选择线的表面的一部分涂覆有轭材料。

    Magneto-resistance element capable of controlling the position and size of edge domain and the coercivity and magnetic memory
    10.
    发明授权
    Magneto-resistance element capable of controlling the position and size of edge domain and the coercivity and magnetic memory 有权
    能够控制边缘域的位置和大小以及矫顽力和磁记忆的磁阻元件

    公开(公告)号：US06765824B2

    公开(公告)日：2004-07-20

    申请号：US10391423

    申请日：2003-03-19

    申请人： Tatsuya Kishi ,  Yoshiaki Saito ,  Minoru Amano ,  Shigeki Takahashi ,  Katsuya Nishiyama ,  Tomomasa Ueda

    发明人： Tatsuya Kishi ,  Yoshiaki Saito ,  Minoru Amano ,  Shigeki Takahashi ,  Katsuya Nishiyama ,  Tomomasa Ueda

    IPC分类号： G11C1115

    CPC分类号： G11C11/15 ,  G11C11/5607

    摘要： There is provided a magnetoresistance element in which a shape of a free ferromagnetic layer includes a first portion with a parallelogrammic contour, and second portions that protrude from a pair of opposite corners of the first portion respectively in a main direction parallel to a pair of opposite sides of the first portion, the shape is asymmetric with respect to a line that passes through a center of the first portion and is parallel to the main direction, and an axis of easy magnetization of the free ferromagnetic layer falls within a range defined by an acute angle that a first direction makes with a second direction, the first direction being substantially parallel to the main direction and the second direction being substantially parallel to the longest line segment that joins contours of the second portions.

    摘要翻译： 提供了一种磁阻元件，其中自由铁磁层的形状包括具有平行四边形轮廓的第一部分，以及第二部分，其在与主要方向平行的一对相反侧的第一部分的一对相对的角部分别突出 第一部分的侧面，该形状相对于穿过第一部分的中心并且平行于主方向的线是不对称的，并且自由铁磁性层的容易磁化的轴线落在由 第一方向与第二方向形成的锐角，第一方向基本上平行于主方向，第二方向基本上平行于连接第二部分的轮廓的最长线段。