Method of making current-perpendicular-to-the-plane structure magnetoresistive element
    1.
    发明授权
    Method of making current-perpendicular-to-the-plane structure magnetoresistive element 失效
    制造电流垂直于平面结构的磁阻元件的方法

    公开(公告)号:US07377026B2

    公开(公告)日:2008-05-27

    申请号:US11431757

    申请日:2006-05-10

    IPC分类号: G11B5/187

    摘要: A magnetoresistive film is formed on the surface of a lower electrode layer in a method of making a current-perpendicular-to-the-plane structure magnetoresistive element. The magnetoresistive film includes a lower portion and an upper portion overlaid on the lower portion. The lower portion includes at least a pinned magnetic layer. The upper portion includes at least a free magnetic layer. A pair of domain control magnetic layers is formed to sandwich the magnetoresistive film. An insulator film is formed to cover over the domain control magnetic layers. The upper portion is subjected to an etching process. The domain control magnetic layers are reliably prevented from being removed during the etching process. Accordingly, the domain control magnetic layers are allowed to reliably sandwich the upper portion of the magnetoresistive film in the aforementioned manner.

    摘要翻译: 在制造电流 - 垂直于平面结构的磁阻元件的方法中,在下电极层的表面上形成磁阻膜。 磁阻膜包括下部和覆盖在下部上的上部。 下部包括至少一个钉扎的磁性层。 上部包括至少一个自由磁性层。 形成一对区域控制磁性层以夹持磁阻膜。 形成绝缘膜以覆盖域控制磁性层上。 对上部进行蚀刻处理。 在蚀刻处理期间可靠地防止畴控制磁性层被去除。 因此,允许域控制磁性层以上述方式可靠地夹住磁阻膜的上部。

    SPIN VALVE MAGNETORESISTIVE SENSOR HAVING CPP STRUCTURE
    6.
    发明申请
    SPIN VALVE MAGNETORESISTIVE SENSOR HAVING CPP STRUCTURE 失效
    具有CPP结构的旋转阀磁传感器

    公开(公告)号:US20060119989A1

    公开(公告)日:2006-06-08

    申请号:US11327676

    申请日:2006-01-06

    IPC分类号: G11B5/127 G11B5/33

    摘要: Disclosed herein is a spin valve magnetoresistive sensor including a first conductor layer, a free ferromagnetic layer provided on the first conductor layer, a nonmagnetic intermediate layer provided on the free ferromagnetic layer, a pinned ferromagnetic layer provided on the nonmagnetic intermediate layer, an antiferromagnetic layer provided on the pinned ferromagnetic layer, and a second conductor layer provided on the antiferromagnetic layer. At least one of the free ferromagnetic layer and the pinned ferromagnetic layer has a thickness larger than that providing a maximum resistance change rate or resistance change amount in the case of passing a current in an in-plane direction of the at least one layer. That is, the thickness of at least one of the free ferromagnetic layer and the pinned ferromagnetic layer falls in the range of 3 nm to 12 nm.

    摘要翻译: 本文公开了一种自旋阀磁阻传感器,其包括第一导体层,设置在第一导体层上的自由铁磁层,设置在自由铁磁层上的非磁性中间层,设置在非磁性中间层上的钉扎铁磁层,反铁磁层 设置在被钉扎的铁磁层上,以及设置在反铁磁层上的第二导体层。 自由铁磁层和被钉扎的铁磁层中的至少一个具有大于在通过至少一个层的面内方向的电流的情况下提供最大电阻变化率或电阻变化量的厚度的厚度。 也就是说,自由铁磁层和被钉扎铁磁层中的至少一个的厚度落在3nm至12nm的范围内。

    Magnetoresistive head and manufacturing method therefor
    8.
    发明授权
    Magnetoresistive head and manufacturing method therefor 失效
    磁阻头及其制造方法

    公开(公告)号:US06754052B2

    公开(公告)日:2004-06-22

    申请号:US10107084

    申请日:2002-03-27

    IPC分类号: G11B5127

    摘要: A magnetoresistive head including a first magnetic shield, a first electrode terminal provided on the first magnetic shield and having a first width, and a magnetoresistive film provided on the first electrode terminal and having a second width less than or equal to the first width. The magnetoresistive head further includes a second electrode terminal provided on the magnetoresistive film and having a third width less than or equal to the second width, and a second magnetic shield provided on the second electrode terminal. Preferably, the magnetoresistive head further includes a plug electrode for connecting the second electrode terminal to the second magnetic shield, and a plug side wall protective insulating film for covering a side wall of the plug electrode.

    摘要翻译: 一种磁阻头,包括第一磁屏蔽,设置在第一磁屏蔽上并具有第一宽度的第一电极端子和设置在第一电极端子上并具有小于或等于第一宽度的第二宽度的磁阻膜。 磁阻头还包括设置在磁阻膜上并具有小于或等于第二宽度的第三宽度的第二电极端子和设置在第二电极端子上的第二磁屏蔽。 优选地,磁阻头还包括用于将第二电极端子连接到第二磁屏蔽的插头电极和用于覆盖插头电极的侧壁的插头侧壁保护绝缘膜。

    Uneven-surface data detection apparatus
    9.
    发明授权
    Uneven-surface data detection apparatus 失效
    不均匀数据检测装置

    公开(公告)号:US4728186A

    公开(公告)日:1988-03-01

    申请号:US833276

    申请日:1986-02-27

    摘要: An uneven-surface data detection apparatus, includes a transparent plate having an uneven-surface contact portion against which an uneven surface to be detected is pressed. A light source illuminates the uneven-surface contact portion through the transparent plate. An uneven-surface image drawing out optical element draws out the light reflected on the uneven-surface contact portion of the transparent plate. A detector detects the light drawn out from the transparent plate by the optical element.Light reflected by a projection-facing portion of the uneven surface contact portion to be introduced into the detector diverges from a propagation direction of light reflected by a recess-facing portion of the uneven surface contact portion. The optical element is arranged to guide the light reflected by the projection-facing portion into the detector.

    摘要翻译: 不平坦面数据检测装置包括具有不平坦面接触部分的透明板,所述不平坦表面被按压到所述不平坦表面的接触部分。 光源通过透明板照亮不平坦表面的接触部分。 引出光学元件的不平坦表面图像抽出在透明板的不平坦表面接触部分上反射的光。 检测器通过光学元件检测从透明板引出的光。 被引入检测器的不平坦表面接触部分的面向投影部分反射的光从不平坦表面接触部分的面向凹部的反射的光的传播方向发散。 光学元件被布置成将由面向投射的部分反射的光引导到检测器中。