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    Method of manufacturing a recording/reading matrix magnetic head
    51.
    发明授权
    Method of manufacturing a recording/reading matrix magnetic head 失效
    制造记录/读取矩阵磁头的方法

    公开(公告)号：US5933940A

    公开(公告)日：1999-08-10

    申请号：US887840

    申请日：1997-07-03

    Applicant: Christian Maillot ,  Marc Dorel

    Inventor： Christian Maillot ,  Marc Dorel

    IPC: G11B5/29 ,  G11B5/31 ,  G11B5/48 ,  G11B5/49 ,  G11B5/42

    CPC classification number: G11B5/4976 ,  G11B5/3163 ,  G11B5/3183 ,  G11B5/488 ,  Y10T29/49044 ,  Y10T29/49062 ,  Y10T29/49064

    Abstract: A matrix type magnetic recording/reading head made in integrated fashion, including an electrically non-conductive ceramic substrate having a first main face and a second main face, each provided with connection areas. The two areas of the two faces are interconnected in sets of two by internal connection elements. A layer with high magnetic permeability is deposited on the first face of the substrate. The substrate bears a first series of row conductors and a second series of column conductors intersecting the row conductors, each conductor being connected to a connection area of the first face. Pairs of magnetic poles are located substantially at the intersection of the row conductor and column conductors, the poles of each pair separated by a gap space and being magnetically coupled to the layer with high magnetic permeability in two opposite zones defined by the intersection of a row conductor and a column conductor.

    Abstract translation: 一种以集成方式制成的矩阵式磁记录读取头，包括具有第一主面和第二主面的非导电陶瓷衬底，每个设置有连接区域。 两个面的两个区域通过内部连接元件以两组互连。 具有高磁导率的层沉积在基底的第一面上。 衬底具有第一系列行导体和与行导体相交的第二列列导体，每个导体连接到第一面的连接区域。 一对磁极基本上位于行导体和列导体的交叉点处，每对的磁极由间隙隔开，并且磁性地耦合到具有高磁导率的层，在两个相对区域中由一行 导体和柱导体。

    Thin magnetic film including multiple geometry gap structures on a common substrate
    52.
    发明授权
    Thin magnetic film including multiple geometry gap structures on a common substrate 失效
    薄的磁性薄膜包括在共同的基底上的多个几何间隙结构

    公开(公告)号：US5909346A

    公开(公告)日：1999-06-01

    申请号：US882370

    申请日：1997-06-25

    Applicant: Arun Malhotra ,  G. Robert Gray

    Inventor： Arun Malhotra ,  G. Robert Gray

    IPC: G11B5/31 ,  G11B5/48 ,  G11B5/147

    CPC classification number: G11B5/488 ,  G11B5/31 ,  G11B5/3116 ,  G11B5/3183

    Abstract: A thin film magnetic head assembly is provided which includes a plurality of thin film heads situated atop a common substrate. An insulative main body is built up layer by layer on the substrate. A plurality of magnetic yokes exhibiting different geometries are situated on the substrate and within the main body. The magnetic yokes are built up layer by layer at the same time that the insulative main body is fabricated. A plurality of coil structures are situated within the main body and are magnetically coupled to respective magnetic yokes. The head assembly also includes a pedestal of insulative material situated atop the main body and exhibiting a lateral dimension less than that of the main body. The pedestal protrudes upwardly away from the main body and substrate. The magnetic yokes each include a pole piece pair situated atop the pedestal, each pole piece pair including first and second magnetic pole pieces. Each pole piece pair exhibits a different geometry than another pole piece pair. Each pole piece pair forms a head which is adapted to reading/writing a track on a magnetic medium, the tracks of which are compatible with the geometry of that pole piece pair.

    Abstract translation: 提供一种薄膜磁头组件，其包括位于公共衬底顶部的多个薄膜头。 在基板上逐层建立绝缘主体。 呈现不同几何形状的多个磁轭位于基板上并在主体内。 在制造绝缘主体的同时，磁轭被逐层地构建。 多个线圈结构位于主体内并磁耦合到相应的磁轭。 头部组件还包括位于主体顶部并具有小于主体的横向尺寸的绝缘材料的基座。 基座从主体和基板向上突出。 磁轭各自包括位于基座顶部的极靴对，每个极片对包括第一和第二磁极片。 每个极片对具有与另一个极片对不同的几何形状。 每个极片对形成头部，其适于在磁性介质上读取/写入轨道，轨道与该极靴对的几何形状兼容。

    Information storage system having an improved planar head-suspension assembly
    56.
    发明授权
    Information storage system having an improved planar head-suspension assembly 失效
    信息存储系统具有改进的平面头悬挂组件

    公开(公告)号：US5815347A

    公开(公告)日：1998-09-29

    申请号：US246051

    申请日：1994-05-19

    Applicant: Surya Pattanaik

    Inventor： Surya Pattanaik

    IPC: G11B5/31 ,  G11B5/48 ,  G11B5/60 ,  G11B21/21

    CPC classification number: G11B5/6005 ,  G11B21/21 ,  G11B5/4853 ,  G11B5/486 ,  G11B5/3103 ,  G11B5/3183

    Abstract: A planar head-suspension assembly for an information storage system is provided. The assembly comprises a planar head being of the type having an air bearing surface and a back side opposite the air bearing surface. The head has a read and/or write transducer formed therein and electrical leads terminating on the back side at termination pads. The assembly also includes a multilayered suspension having an etched conductive lead structure formed in a conductive patterned layer and having one or more openings passing through the suspension. Portions of the conductive lead structure project into the openings, and the back side of the head is placed to the suspension such that the termination pads are properly aligned with the openings. Last, a solder region is formed within each of the openings making electrical contact between the conductive lead structure and the termination pads.

    Abstract translation: 提供了一种用于信息存储系统的平面头悬挂组件。 组件包括具有空气轴承表面和与空气轴承表面相对的后侧的类型的平面头部。 头部具有形成在其中的读取和/或写入传感器，并且在终端焊盘的背面端接电引线。 组件还包括多层悬架，其具有形成在导电图案层中并且具有穿过悬架的一个或多个开口的蚀刻导电引线结构。 导电引线结构的一部分突出到开口中，并且头部的后侧被放置到悬架上，使得终端焊盘与开口正确对准。 最后，在每个开口内形成焊接区域，使得导电引线结构和端接焊盘之间电接触。

    Integrated conductor magnetic recording head and suspension having cross-over integrated circuits for noise reduction
    58.
    发明授权
    Integrated conductor magnetic recording head and suspension having cross-over integrated circuits for noise reduction 失效
    具有用于降噪的交叉集成电路的集成导体磁记录头和悬架

    公开(公告)号：US5805382A

    公开(公告)日：1998-09-08

    申请号：US668645

    申请日：1996-06-21

    Applicant: Edward Hin Pong Lee ,  Randall George Simmons

    Inventor： Edward Hin Pong Lee ,  Randall George Simmons

    IPC: G11B5/60 ,  G11B5/31 ,  G11B5/40 ,  G11B5/48 ,  G11B21/21 ,  G11B33/12 ,  G11B5/147 ,  G11B5/17

    CPC classification number: G11B5/313 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/3183 ,  G11B5/484 ,  G11B33/121 ,  G11B5/40

    Abstract: The present invention is an integral magnetic head suspension and method for making the same. The integral suspension, with or without the head, contains integrated conductive circuits that have multiple cross overs for noise reduction. The suspension is fabricated completely on silicon (Si) wafers using semiconductor processes. A N+ silicon layer is disposed over a P- silicon wafer. The N+ silicon layer and the P- silicon wafer are thermally oxidized to generate a bottom silicon oxide layer opposite the N+ layer side of the wafer and a top silicon oxide layer on the N+ side of the wafer, and to drive the N+ silicon into the P- silicon wafer. A layer of polysilicon is disposed over the silicon oxide layer on top of the N+ silicon layer. One or more pairs of conductive traces having multiple cross-overs are fabricated on the layer of polysilicon. Optimally, a magnetic head is simultaneously fabricated on the suspension. The polysilicon layer is then patterned to define the head structure and suspension structure as one piece. Finally, the magnetic head and suspension are separated from the wafer by removing the first silicon oxide layer by a chemical etchant and the P- silicon wafer by selective etching. The head and suspension are released from the silicon wafer as a single structure using the above-described semiconductor processes. Accordingly, no grinding or cutting is used to define the dimensions of the head. Further, no processes are required to attach the head to the suspension and the suspension can be made from low mass materials such as silicon (Si) or Al.sub.2 O.sub.3.

    Abstract translation: 本发明是一种整体磁头悬挂及其制造方法。 具有或不具有头部的整体悬架包含具有多个交叉以用于降噪的集成导电电路。 使用半导体工艺，在硅（Si）晶片上完全制造悬浮液。 N +硅层设置在P-硅晶片上。 N +硅层和P-硅晶片被热氧化以产生与晶片的N +层侧相对的底部氧化硅层和晶片的N +侧的顶部氧化硅层，并将N +硅驱入 P-硅晶片。 在N +硅层顶部的氧化硅层之上设置一层多晶硅。 在多晶硅层上制造具有多重交叉的一对或多对导电迹线。 最佳地，在悬架上同时制造磁头。 然后将多晶硅层图案化以将头部结构和悬挂结构定义为一体。 最后，通过化学蚀刻剂和P-硅晶片通过选择性蚀刻去除第一氧化硅层，将磁头和悬浮液与晶片分离。 使用上述半导体工艺，头和悬浮液作为单一结构从硅晶片释放。 因此，不使用研磨或切割来限定头部的尺寸。 此外，不需要将头部附接到悬架上，并且悬架可以由诸如硅（Si）或Al 2 O 3的低质量材料制成。

    Planar geometry thin film head with shaped poles
    60.
    发明授权
    Planar geometry thin film head with shaped poles 失效
    平面几何薄膜头与成形极

    公开(公告)号：US5793577A

    公开(公告)日：1998-08-11

    申请号：US742472

    申请日：1996-11-01

    Applicant: Eric R. Katz ,  Michael E. Devillier

    Inventor： Eric R. Katz ,  Michael E. Devillier

    IPC: G11B5/31 ,  G11B5/142

    CPC classification number: G11B5/3116 ,  G11B5/3133 ,  G11B5/3183 ,  G11B5/3163

    Abstract: A magnetic thin film head of the planar geometry type has a dielectric member located between facing ends of pole members in the gap region. The thickness of at least one of the pole members in the gap region is reduced by the dielectric member relative to the thickness of the remainder of the pole members. This dielectric member in the region of reduced thickness functions to increase the density of the magnetic flux in that region during recording, thereby improving the write capability of the head.

    Abstract translation: 平面几何形状的磁性薄膜头具有位于间隙区域中的极构件的相对端之间的电介质构件。 间隙区域中的至少一个极构件的厚度相对于极构件的其余部分的厚度被电介质构件减小。 在该厚度范围内的该电介质构件用于在记录期间增加该区域中的磁通密度，从而提高磁头的写入能力。

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