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    • 2. 发明申请
    • Magnetoresistance effect element, magnetic head, and magnetic reproducing apparatus
    • 磁阻效应元件,磁头和磁再现装置
    • US20040201929A1
    • 2004-10-14
    • US10659299
    • 2003-09-11
    • KABUSHIKI KAISHA TOSHIBA
    • Susumu HashimotoKatsuhiko KouiMasashi SahashiHitoshi Iwasaki
    • G11B005/39
    • H01L43/08G11B5/3906H01L43/12Y10T428/1121
    • A magnetoresistance effect element comprises: a magnetoresistance effect film, a pair of electrodes, and a phase separation layer. The magnetoresistance effect film includes a first ferromagnetic layer whose direction of magnetization is pinned substantially in one direction, a second ferromagnetic layer whose direction of magnetization changes in response to an external magnetic field, and an intermediate layer provided between the first and second ferromagnetic layers. The pair of electrodes are electrically coupled to the magnetoresistance effect film and configured to supply a sense current perpendicularly to a film plane of the magnetoresistance effect film. The phase separation layer is provided between the pair of electrodes. The phase separation layer has a first phase and a second phase formed by a phase separation in a solid phase from an alloy including a plurality of elements. One of the first and second phases includes at least one element selected from the group consisting of oxygen, nitrogen, fluorine and carbon in higher concentration than other of the first and second phases.
    • 磁阻效应元件包括:磁阻效应膜,一对电极和相分离层。 磁阻效应膜包括其磁化方向基本上被固定在一个方向上的第一铁磁层,其磁化方向响应于外部磁场而变化的第二铁磁性层和设置在第一和第二铁磁层之间的中间层。 一对电极电耦合到磁阻效应膜并且被配置为提供垂直于磁阻效应膜的膜平面的感测电流。 相分离层设置在该对电极之间。 相分离层具有通过从包含多个元素的合金固相中相分离而形成的第一相和第二相。 第一和第二相中的一个包括选自氧,氮,氟和碳中的至少一种元素,其浓度高于第一相和第二相中的其它相。
    • 7. 发明申请
    • Magnetoresistance effect element, magnetic head, magnetic reproducing apparatus, and magnetic memory
    • 磁阻效应元件,磁头,磁再现装置和磁存储器
    • US20040021990A1
    • 2004-02-05
    • US10400638
    • 2003-03-28
    • Kabushiki Kaisha Toshiba
    • Katsuhiko KouiMasatoshi YoshikawaMasayuki TakagishiMasashi SahashiTakeo SakakuboHitoshi Iwasaki
    • G11B005/39G11C011/15
    • H01L43/08B82Y10/00B82Y25/00G11B5/3903G11B5/3909G11B2005/3996H01F10/3254H01F10/3259H01F10/3268H01L27/224H01L27/228
    • A magnetoresistance effect element comprises a magnetoresistance effect film including a magnetically pinned layer whose direction of magnetization is pinned substantially in one direction, a magnetically free layer whose direction of magnetization changes in response to an external magnetic field, and a nonmagnetic intermediate layer located between the pinned layer and the free layer; and a pair of electrodes electrically connected to said magnetoresistance effect film to supply a sense current perpendicularly to a film plane of said magnetoresistance effect film, The intermediate layer has a first layer including a first region whose resistance is relatively high and second regions whose resistance is relatively low. The sense current preferentially flows through the second regions when the current passes the first layer. Alternatively, the concentration of oxygen in the first layer may have a two-dimensional fluctuation, and a first region where the concentration of oxygen is equal to or higher than 40 atomic % and a second region where the concentration of oxygen is equal to or lower than 35 atomic % may be provided in the first layer.
    • 磁阻效应元件包括磁阻效应膜,该磁阻效应膜包括磁性钉扎层,其磁化方向基本上被固定在一个方向上,磁化方向随着外部磁场而变化的磁性层以及位于其间的非磁性中间层 固定层和自由层; 以及一对电极,电连接到所述磁阻效应膜,以提供垂直于所述磁阻效应膜的膜平面的感测电流。中间层具有包括第一区域的第一层,第一区域的电阻相对较高,第二区域的电阻为 比较低 当电流通过第一层时,感测电流优先流过第二区域。 或者,第一层中的氧浓度可以具有二维波动,以及氧浓度等于或高于40原子%的第一区域和氧浓度等于或低于其的第二区域 可以在第一层中设置35原子%以上。