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    DATA TRANSDUCER AND METHOD FOR WRITING DATA UTILIZING THE BOTTOM POLE AS THE TRAILING EDGE OF A THIN-FILM MAGNETIC TAPE WRITE HEAD
    2.
    发明公开
    DATA TRANSDUCER AND METHOD FOR WRITING DATA UTILIZING THE BOTTOM POLE AS THE TRAILING EDGE OF A THIN-FILM MAGNETIC TAPE WRITE HEAD 失效
    数据转换器和数据记录方法薄膜磁带写头的底部极AS后缘GEBRAUCHEND

    公开(公告)号：EP0983589A1

    公开(公告)日：2000-03-08

    申请号：EP98922357.3

    申请日：1998-05-15

    申请人： QUANTUM CORPORATION

    发明人： NEUMANN, Lawrence, G.

    IPC分类号： G11B5/147 ,  G11B5/187

    CPC分类号： G11B5/313 ,  G11B5/00 ,  G11B5/09 ,  G11B5/3116 ,  G11B5/488 ,  G11B5/4893

    摘要： A data transducer, process for fabricating the same and methods for writing data to a magnetic storage media, such as magnetic tape (64), utilizing the lower pole (52) as the trailing edge of a write head (50). The lower pole (52) may be formed of sputtered FeN or FeN-based alloys since it can be formed on the planar substrate instead of overlying the write coil (56) and its associated layers. The lower pole (52) can be processed by wet-etching techniques because its width and edge contours are not critical dimensions which determine recording characteristics. Utilizing the wider and more planar lower pole (52) as the write head trailing edge results in a straighter magnetic transition on the media without the curved edges associated with the fringe fields at the edges of the narrower top pole (62).

    LOW-INDUCTANCE THIN-FILM HEAD
    3.
    发明公开
    LOW-INDUCTANCE THIN-FILM HEAD 失效
    DÜNNFILMMAGNETKOPFMIT NIEDRIGER INDUKTANZ

    公开(公告)号：EP0868717A4

    公开(公告)日：1998-12-02

    申请号：EP96940477

    申请日：1996-11-15

    申请人： QUANTUM CORP

    发明人： MALLARY MICHAEL L

    IPC分类号： G11B5/31 ,  G11B5/147

    CPC分类号： G11B5/3143 ,  G11B5/312

    摘要： A low-inductance thin-film head (60) includes a flux barrier layer (52) of electrical conductive, non-magnetic material such as copper, gold and aluminum positioned on the head, wherein stray flux from the head is cut off by the flux barrier layer (52) to reduce the inductance of the head (60). Stray flux entering the barrier layer creates an eddy current in the layer which cuts off the stray flux paths of the head. The flux barrier layer (52) can be placed in various positions, including downstream or upstream of the head (60), or between the poles (14, 16), to improve the read or write performance of the head.

    摘要翻译： 低电感薄膜磁头（60）包括位于磁头上的导电非磁性材料（例如铜，金和铝）的磁通阻挡层（52），其中来自磁头的杂散磁通被 通量阻挡层（52）以减小头部（60）的电感。 进入阻挡层的杂散磁通在该层中产生涡电流，从而切断磁头的杂散磁通路径。 磁通阻挡层（52）可以放置在各种位置，包括头部（60）的下游或上游，或磁极（14,16）之间，以改善头部的读取或写入性能。

    Layered magnetic structure for use in a magnetic head
    6.
    发明公开
    Layered magnetic structure for use in a magnetic head 失效
    Geschichtete磁铁Struktur zum Gebrauch在einem Magnetkopf。

    公开(公告)号：EP0606750A3

    公开(公告)日：1994-10-26

    申请号：EP93310325.1

    申请日：1993-12-20

    申请人： International Business Machines Corporation

    发明人： Westwood, John David

    IPC分类号： G11B5/147 ,  G11B5/31 ,  G11B5/39 ,  H01F41/14 ,  H01F10/08

    CPC分类号： B82Y25/00 ,  B82Y40/00 ,  G11B5/3109 ,  G11B5/3113 ,  G11B5/3153 ,  G11B5/3903 ,  G11B5/3967 ,  H01F10/145 ,  H01F10/147 ,  H01F10/32 ,  H01F41/302 ,  Y10T428/12465 ,  Y10T428/12674 ,  Y10T428/12736 ,  Y10T428/12757 ,  Y10T428/12764 ,  Y10T428/12951 ,  Y10T428/12958

    摘要： A layered magnetic structure for use in a magnetic recording and/or readback head comprises at least first and second layers of silicon-aluminium-iron (SiAlFe), known as sendust. In one embodiment the multilayered magnetic structure includes a seed layer of a first sendust alloy and a bulk layer of a second sendust alloy overlying the seed layer, providing greatly improved anisotropic field and soft magnetic characteristics for the structure over a relatively wide range of compositions for the sendust material used for the bulk layer. The seed layer can be a single sendust layer or, alternatively, can be a multilayered structure including layers of a gas-doped sendust material and layers of non-doped sendust material formed in an alternating sequence. The dopant gas is a gas such as nitrogen, oxygen or air, for example. Because of the hardness exhibited by sendust films, the described multilayered sendust films are excellent candidates for magnetic shields and inductive pole tips exposed at the air bearing surface of a transducer in a magnetic storage device.

    摘要翻译： 用于磁记录和/或回读头的结构包括至少第一层和第二层硅 - 铝 - 铁（SiAlFe），称为铁硅铝石。 在一个实施例中，多层磁性结构（50）包括第一硅酸盐合金的种子层（53）和覆盖在种子层上的第二种硅铝矿合金的主体层（55），提供了大大改进的各向异性场和软磁特性 在用于本体层的铁硅铝材料的组合物的相对宽范围内的结构。 种子层可以是单个硅酸盐层，或者可以是包含气体掺杂的硅铝铁氧化物材料（67）的层和以交替顺序形成的非掺杂的铁素体材料（69）的层的多层结构（63）。 掺杂气体例如是氮气，氧气或空气等气体。 由于硅铝薄膜表现出的硬度，所以描述的多层铁硅铝磁性薄膜是在磁存储装置中的换能器的空气轴承表面处露出的磁屏蔽和感应极尖的优选候选。

    Magnetic head and method of manufacturing the same
    8.
    发明公开
    Magnetic head and method of manufacturing the same 失效
    磁头及其制造方法

    公开(公告)号：EP0578234A2

    公开(公告)日：1994-01-12

    申请号：EP93110888.0

    申请日：1993-07-07

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Yamamoto, Tatsushi

    IPC分类号： G11B5/147 ,  G11B5/21 ,  G11B5/31

    CPC分类号： G11B5/1475 ,  G11B5/10 ,  G11B5/21 ,  G11B5/3109 ,  G11B5/3163

    摘要： A magnetic head has a magnetic core (23) structured so that soft magnetic thin films (31a, 31b, 31c, 31d) and insulating thin films (33a, 33b, 33c) are stacked alternately. In at least one layer of the soft magnetic thin films (31a, 31b, 31c, 31d), the thickness of the vicinity of a gap portion (25) is made smaller than that of the other portions. According to this structure, it is possible to decrease a magnetic reluctance of the magnetic core (23). Such magnetic core (23) is formed by repeating, to a substrate (27) having a plurality of grooves (35) formed thereon, the step of forming a thin film by using self-shadowing effects of a peak portion of the groove (35) and the step of applying an anisotropic etching process.

    摘要翻译： 磁头具有磁芯（23），磁芯（23）被构造成交替堆叠软磁性薄膜（31a，31b，31c，31d）和绝缘薄膜（33a，33b，33c）。 在至少一层软磁性薄膜（31a，31b，31c，31d）中，间隙部分（25）附近的厚度小于其它部分的厚度。 根据该结构，可以减小磁芯（23）的磁阻。 这样的磁芯（23）是通过在形成有多个槽（35）的基板（27）上重复形成利用槽（35）的峰部的自遮蔽效果形成薄膜的工序 ）和施加各向异性蚀刻工艺的步骤。

    Laminated, high frequency, magnetic transducer and manufacturing method therefor
    9.
    发明公开
    Laminated, high frequency, magnetic transducer and manufacturing method therefor 失效
    Laminierter Hochfrequenz-Magnetwandler und Herstellungsverfahrendafür。

    公开(公告)号：EP0559432A2

    公开(公告)日：1993-09-08

    申请号：EP93301578.6

    申请日：1993-03-02

    申请人： AMPEX SYSTEMS CORPORATION

    发明人： Gooch, Beverley R. ,  Varian, George R.

    IPC分类号： G11B5/147 ,  G11B5/21

    CPC分类号： G11B5/1475 ,  G11B5/21 ,  Y10T29/49048 ,  Y10T29/49064

    摘要： A magnetic transducer for reproducing /recording high frequency signals with a magnetic tape medium includes a pair of opposed transducer head halves separated by an insulation gap and bonded together to form a Y-shaped pole structure, each half including a laminated at least partially ferromagnetic core portion bounded on opposite surfaces with conductive layers, each of which forms a winding coil portion. Each core section is formed as one-half of a Y-shaped cross-sectional configuration having a leg portion and an angularly disposed arm portion, the distal end of which is capped with a block-shaped ferromagnetic pole tip in magnetic path relation therewith, the two pole tips lying in a common plane transverse to the plane of the gap. The conductive layers on the outer and inner surfaces of the laminated core section form outer and inner conductors which, when conductively interconnected, such as by jumpers, are configured to form a one or two turn coil for the transducer. The inner conductor is of an inverted generally U-shaped configuration with the bight portion of the two inner conductors passing through, and substantially filling, the openings of the Y-shape on opposite sides of the insulation gap layer beneath the pole pieces.
    The method of fabricating the magnetic transducer generally comprises the steps of forming at least two generally identical transducer head halves, each having generally one half of a Y-shape, commencing with providing a substrate having a surface shaped to define the core configuration and having a band shaped to define the pole configurations; applying a conductive layer to the surface for providing an outer coil conductor ; alternately applying laminae of insulating and magnetic material to form a laminated core section ; applying a conductive layer over an insulation layer about the face and side edges of the laminated core section for providing an inner generally U-shaped coil conductor ; forming, in the band, a pole piece of magnetic material at the distal end of the arm of the core section ; bonding two such transducer head halves in facing relation to from a Y-shaped transducer with the bonding material being insulating and forming the gap between the two pole pieces.

    摘要翻译： 用于用磁带介质再现/记录高频信号的磁换能器包括一对相对的换能器半部分，其被绝缘间隙隔开并结合在一起以形成Y形极结构，每一半包括层压的至少部分铁磁芯 在相对表面上限定有导电层的部分，每个导体层形成绕组线圈部分。 每个芯部形成为具有腿部和角度布置的臂部的Y形横截面构造的一半，其远端用与其磁路关系的块状铁磁极尖盖住， 两个极尖位于横向于间隙平面的公共平面中。 层叠芯部分的外表面和内表面上的导电层形成外导体和内导体，当导电互连时，例如通过跳线，导体层被构造成形成换能器的一个或两个匝线圈。 内部导体具有倒置的大致U形构造，其中两个内部导体的弯曲部分穿过位于绝缘间隙层下方的Y形形状的开口，并且基本上填充在极片下方。 制造磁换能器的方法通常包括以下步骤：形成至少两个大致相同的换能器头半部，每个具有大致为Y形的一半，从而提供具有成形以限定芯构造并具有 带状，以定义极配置; 在所述表面上施加导电层以提供外部线圈导体; 交替地施加绝缘和磁性材料层以形成层叠芯部分; 围绕层叠芯部的表面和侧边缘在绝缘层上施加导电层，以提供内部大致U形的线圈导体; 在所述带中在所述芯部的所述臂的远端处形成磁性材料的极片; 将两个这样的传感器头半部与Y形换能器面对关系，其中接合材料是绝缘的并且形成两个极片之间的间隙。