Method and apparatus for manufacturing magnetoresistive element
    65.
    发明授权
    Method and apparatus for manufacturing magnetoresistive element 有权
    用于制造磁阻元件的方法和装置

    公开(公告)号:US08153188B2

    公开(公告)日:2012-04-10

    申请号:US12248578

    申请日:2008-10-09

    摘要: The present invention relates to a method for manufacturing a magnetoresistive element having a magnetization pinned layer, a magnetization free layer, and a spacer layer including an insulating layer provided between the magnetization pinned layer and the magnetization free layer and current paths penetrating into the insulating layer. A process of forming the spacer layer in the method includes depositing a first metal layer forming the metal paths, depositing a second metal layer on the first metal layer, performing a pretreatment of irradiating the second metal layer with an ion beam or a RF plasma of a rare gas, and converting the second metal layer into the insulating layer by means of supplying an oxidation gas or a nitriding gas.

    摘要翻译: 本发明涉及一种用于制造具有磁化钉扎层,磁化自由层和间隔层的磁阻元件的方法,所述隔离层包括设置在磁化被钉扎层和磁化自由层之间的绝缘层,以及穿透绝缘层的电流路径 。 在该方法中形成间隔层的工艺包括沉积形成金属路径的第一金属层,在第一金属层上沉积第二金属层,执行用离子束或RF等离子体照射第二金属层的预处理 稀有气体,并且通过供给氧化气体或氮化气体将第二金属层转化为绝缘层。

    Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording medium
    66.
    发明授权
    Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording medium 有权
    利用与磁记录介质中的天线层相互作用的自旋扭矩振荡器的磁记录装置

    公开(公告)号:US08120875B2

    公开(公告)日:2012-02-21

    申请号:US12512237

    申请日:2009-07-30

    IPC分类号: G11B5/127

    摘要: A magnetic recording apparatus includes a magnetic recording head having a magnetic pole and a spin torque oscillator, the spin torque oscillator being placed adjacent to the magnetic pole and includes at least two magnetic layers of a first magnetic layer and a second magnetic layer, and a magnetic recording medium includes two magnetic layers of a recording layer and an antenna layer, the recording layer including a hard magnetic material, such that the antenna layer is formed closer to the magnetic recording head than the recording layer, in which the antenna layer has a resonance frequency fa lower than a resonance frequency fr of the recording layer, greater than a resonance frequency of the second magnetic layer, and the recording layer and the antenna layer are ferromagnetically coupled to each other.

    摘要翻译: 磁记录装置包括具有磁极和自旋扭矩振荡器的磁记录头,该旋转扭矩振荡器被放置成与磁极相邻,并且包括至少两个第一磁性层和第二磁性层的磁性层,以及 磁记录介质包括记录层和天线层的两个磁性层,记录层包括硬磁性材料,使得天线层比记录层更靠近磁记录头,其中天线层具有 谐振频率fa低于记录层的谐振频率fr,大于第二磁性层的共振频率,并且记录层和天线层彼此铁磁耦合。