Thin-film magnetic head and method of manufacturing the magnetic head
    12.
    发明授权
    Thin-film magnetic head and method of manufacturing the magnetic head 失效
    薄膜磁头及制造磁头的方法

    公开(公告)号:US06205007B1

    公开(公告)日:2001-03-20

    申请号:US08156146

    申请日:1993-11-22

    IPC分类号: G11B5127

    CPC分类号: G11B5/3919 G11B5/3922

    摘要: Thin-film magnetic head having a head face (103) and comprising a magnetoresistive element (109) oriented transversely to the head face and a flux-guiding element (107) of a magnetically permeable material terminating in the head face. A peripheral area (109a) of the magnetoresistive element extending parallel to the head face is present opposite the flux-guiding element for forming a magnetic connection between the magnetoresistive element and the flux-guiding element. The flux-guiding element and the peripheral area of the magnetoresistive element constitute a common magnetic contact face (111), while the magnetically permeable material of the flux-guiding element is electrically insulating.

    摘要翻译: 具有头表面(103)并且包括横向于头部表面定向的磁阻元件(109)的薄膜磁头和终止于头部表面的导磁材料的磁通引导元件(107)。 与磁头表面平行延伸的磁阻元件的周边区域(109a)与磁通元件相对地形成,用于在磁阻元件和磁通引导元件之间形成磁连接。 磁导元件和磁阻元件的周边区域构成公共磁性接触面(111),而导磁元件的导磁材料是电绝缘的。

    Magnetic head having a multilayer structure and method of manufacturing
the magnetic head
    13.
    发明授权
    Magnetic head having a multilayer structure and method of manufacturing the magnetic head 失效
    具有多层结构的磁头和制造磁头的方法

    公开(公告)号:US6028749A

    公开(公告)日:2000-02-22

    申请号:US101324

    申请日:1993-08-02

    申请人: Lambertus Postma

    发明人: Lambertus Postma

    IPC分类号: G11B5/127 G11B5/39 G11B5/33

    CPC分类号: G11B5/399 G11B5/3903

    摘要: Magnetic head having a multilayer structure which comprises at least one magnetoresistive layer (9) and a transducing gap terminating in a head face. The magnetoresistive layer has an active central portion located between two end portions, which central portion is provided with equipotential strips (13). Layers (15) of a hard-magnetic material with an axis of magnetization extending in the longitudinal direction of the magnetoresistive layer are provided opoosite to, and spaced apart from the end portions, a non-magnetic spacer layer (17) of electrically insulating material being present between the end portions and said layers of hard-magnetic material.

    摘要翻译: 具有多层结构的磁头,其包括至少一个磁阻层(9)和终止于头部表面的换能间隙。 磁阻层具有位于两个端部之间的活性中心部分,该中心部分设有等电位条带(13)。 在磁阻层的纵向方向上延伸的磁化轴的硬磁性材料的层(15)设置在电绝缘材料的非磁性间隔层(17)的两端并与其间隔开, 存在于端部和所述硬磁性材料层之间。

    Method of polishing a surface of a noble metal
    14.
    发明授权
    Method of polishing a surface of a noble metal 失效
    抛光贵金属表面的方法

    公开(公告)号:US5637028A

    公开(公告)日:1997-06-10

    申请号:US213776

    申请日:1994-03-16

    摘要: Method of polishing a surface (5a) of a noble metal or an alloy comprising mainly noble metal, in which a polishing means is moved across the surface while exerting a polishing pressure for obtaining a plane and smooth polished surface without any defects. A composition comprising demineralized water with 20 to 40% by weight of an organic liquid comprising a poly-alcohol or a derivative thereof, for example, glycerol, and particles which can be encapsulated and have a Knoop's hardness of between 5 and 50 GPa, for example Al.sub.2 O.sub.3 grains, is used as a polishing means.

    摘要翻译: 抛光贵金属或主要包含贵金属的合金的表面(5a)的方法,其中抛光装置在表面上移动,同时施加用于获得平面的抛光压力和光滑的抛光表面而没有任何缺陷。 包含20至40重量%的包含聚醇或其衍生物,例如甘油的有机液体的软化水和可以包封并且具有5至50GPa的诺普硬度的颗粒的组合物,用于 例如Al 2 O 3颗粒用作抛光装置。

    Method of manufacturing a thin-film magnetic head with a nickel-iron
pattern having inclined edges
    16.
    发明授权
    Method of manufacturing a thin-film magnetic head with a nickel-iron pattern having inclined edges 失效
    制造具有倾斜边缘的镍铁图案的薄膜磁头的方法

    公开(公告)号:US4239587A

    公开(公告)日:1980-12-16

    申请号:US934685

    申请日:1978-08-18

    IPC分类号: C23F1/00 G11B5/31 C23F1/02

    CPC分类号: G11B5/3163

    摘要: In the electrodeposition of nickel-iron alloy layers during the manufacture of a thin-film magnetic head it is ensured that the nickel-iron alloy layer has a top layer having a higher iron content than the iron content of the remainder of the nickel-iron alloy layer. Since this top layer etches more rapidly than the remainder of the layer, the nickel-iron alloy layer itself becomes sloped during etching, this sloping configuration presents great advantages in the subsequent coating with a layer of silicon dioxide.

    摘要翻译: 在制造薄膜磁头时镍 - 铁合金层的电沉积中,确保镍 - 铁合金层的铁含量高于其余镍铁的铁含量的顶层 合金层。 由于该顶层比层的其余部分更快地蚀刻,因此在蚀刻期间镍 - 铁合金层本身变得倾斜,这种倾斜结构在随后的二氧化硅层的涂层中具有很大的优点。