Disk drive with identical top and bottom heads having three side-by-side
elements and a common terminal pad
    2.
    发明授权
    Disk drive with identical top and bottom heads having three side-by-side elements and a common terminal pad 失效
    具有相同顶部和底部头部的盘驱动器具有三个并排元件和公共端子垫

    公开(公告)号:US5896249A

    公开(公告)日:1999-04-20

    申请号:US138836

    申请日:1998-08-24

    摘要: A magnetic recording disk drive uses side-by-side read/write heads formed on head carriers that are identical for both top and bottom disk surfaces. Thus, a common head carrier functions as a single manufacturable part usable for both top and bottom disk surfaces. The common head carrier has a trailing end with a pattern of components formed on it that includes three side-by-side transducers (two read elements equally spaced about a center write element) and five terminal pads, one of which is a common pad, and all of the electrical connectors interconnecting the five terminal pads with the three transducers. There are only three terminal pads for the two read elements, with one of the read terminal pads being a common terminal pad that is electrically connected to both read elements. During assembly of the disk drive, the common carrier, when used as the top carrier, has a first read terminal pad and the common terminal pad connected to the leads on the suspension. When used as the bottom carrier, the second read terminal pad and the common terminal pad are connected to the leads on the suspension. Thus, only one carrier common to both top and bottom sides of the disk needs to be manufactured. The uniqueness of the top and bottom carriers is obtained by the wiring connection of the read terminal pads to the leads on the suspensions.

    摘要翻译: 磁记录盘驱动器使用形成在头托架上的并排读/写头,其对于顶盘和底盘表面是相同的。 因此,公共的头托架用作可用于顶部和底部盘表面的单个可制造部件。 公共头托架具有后端,其上形成有包括三个并排换能器(两个读取元件,围绕中心写入元件等间隔开)的部件图案,以及五个端子焊盘,其中一个是公共焊盘, 并且所有电连接器将五个端子焊盘与三个换能器互连。 两个读取元件只有三个端子焊盘,其中一个读取端子焊盘是与两个读取元件电连接的公共端子焊盘。 在盘驱动器的组装期间,公共载体当用作顶部载体时,具有第一读取端子焊盘,并且公共端子焊盘连接到悬架上的引线。 当用作底部载体时,第二读取端子焊盘和公共端子焊盘连接到悬架上的引线。 因此,只需要制造一个与磁盘的顶面和底面共同的载体。 顶部和底部载体的唯一性是通过将读取的端子焊盘连接到悬架上的引线而获得的。

    High data rate write head
    3.
    发明授权
    High data rate write head 失效
    高数据率写头

    公开(公告)号:US06952326B2

    公开(公告)日:2005-10-04

    申请号:US10611627

    申请日:2003-06-30

    IPC分类号: G11B5/31 G11B5/127

    摘要: A magnetic head assembly includes first and second pole pieces and first and second coil layers wherein the second pole piece has a ferromagnetic pole tip which forms a portion of an air bearing surface and defines a track width of a write head. A write gap layer is located between the first pole piece and the pole tip. A dielectric first insulation layer interfaces first and second side surfaces of the pole tip and is located between the first and second coil layers. The second pole piece has a ferromagnetic second pole piece structure which is magnetically connected to each of the pole tip and the first pole piece and extends across the second coil layer. In a first embodiment the second pole piece structure is a single layer and in a second embodiment the second pole piece structure has front and back components with a flat laminated second pole piece yoke layer located therebetween.

    摘要翻译: 磁头组件包括第一和第二极片以及第一和第二线圈层,其中第二极靴具有形成空气轴承表面的一部分并限定写入头的轨道宽度的铁磁极尖端。 写间隙层位于第一极片和极尖之间。 电介质第一绝缘层与极尖的第一和第二侧表面接合并位于第一和第二线圈层之间。 第二极片具有铁磁第二极片结构,其磁极连接到极尖和第一极靴中的每一个并且延伸穿过第二线圈层。 在第一实施例中,第二极靴结构是单层,在第二实施例中,第二极靴结构具有前后组件,其间具有平坦的层叠的第二极片轭层。

    Perpendicular recording write head with a ferromagnetic shaping layer
    5.
    发明授权
    Perpendicular recording write head with a ferromagnetic shaping layer 失效
    垂直记录写磁头与铁磁成型层

    公开(公告)号:US06757141B2

    公开(公告)日:2004-06-29

    申请号:US10054553

    申请日:2002-01-18

    IPC分类号: G11B5127

    CPC分类号: G11B5/6005 G11B5/3163

    摘要: A perpendicular recording head has a second pole piece which includes a bottom ferromagnetic shaping layer and a top ferromagnetic probe layer. Each of these layers has a flare point where the layers first commence to widen after the ABS with the flare point of the shaping layer being located between an air bearing surface (ABS) of the head and the flare point of the probe layer. Further, the probe layer has a probe at the ABS which has a decreasing width from its top to its bottom to provide a trapezoidal shape which minimizes side writing due to skew of the probe at outermost and innermost circular tracks of a rotating magnetic disk.

    摘要翻译: 垂直记录头具有包括底部铁磁成形层和顶部铁磁探针层的第二极片。 这些层中的每一个都具有闪络点,其中层之后首先在ABS之后开始变宽,成形层的扩张点位于头部的空气支承表面(ABS)和探针层的扩张点之间。 此外,探针层在ABS处具有探针,该探针从其顶部到底部具有减小的宽度,以提供梯形形状,其最小化由于探针在旋转磁盘的最外圆周轨迹和最内圆周轨道处的歪斜而造成的侧面写入。

    High data rate write head
    6.
    发明授权

    公开(公告)号:US06693769B2

    公开(公告)日:2004-02-17

    申请号:US09884608

    申请日:2001-06-18

    IPC分类号: G11B5147

    摘要: A magnetic head assembly includes first and second pole pieces and first and second coil layers wherein the second pole piece has a ferromagnetic pole tip which forms a portion of an air bearing surface and defines a track width of a write head. A write gap layer is located between the first pole piece and the pole tip. A dielectric first insulation layer interfaces first and second side surfaces of the pole tip and is located between the first and second coil layers. The second pole piece has a ferromagnetic second pole piece structure which is magnetically connected to each of the pole tip and the first pole piece and extends across the second coil layer. In a first embodiment the second pole piece structure is a single layer and in a second embodiment the second pole piece structure has front and back components with a flat laminated second pole piece yoke layer located therebetween.

    Disk drive with identical three-element, side-by-side heads on opposite
disk surfaces
    7.
    发明授权
    Disk drive with identical three-element, side-by-side heads on opposite disk surfaces 失效
    磁盘驱动器,在相对的磁盘表面上具有相同的三元件并排磁头

    公开(公告)号:US5798890A

    公开(公告)日:1998-08-25

    申请号:US811490

    申请日:1997-03-05

    摘要: A magnetic recording disk drive uses side-by-side read/write heads formed on head carriers that are substantially identical for both top and bottom disk surfaces. Thus, a common head carrier functions as a single manufacturable part usable for both top and bottom disk surfaces. The common head carrier has a trailing end with a pattern of components formed on it that includes three side-by-side transducers and sets of terminal pads. In the read/write/read side-by-side head arrangement, the first element is a center write element, such as an inductive coil, and the second and third elements are read elements, such as magnetoresistive read elements, that are generally equally spaced from the center write element. In common carriers to be used for the top disk surfaces, one of the read elements is electrically connected to the read/write channel of the disk drive, and in common carriers to be used for the bottom disk surfaces, the other read element on the common carrier is electrically connected to the read/write channel. The disk drive thus operates in cylinder mode with side-by-side heads using a common carrier for both top and bottom disk surfaces.

    摘要翻译: 磁记录盘驱动器使用形成在头托架上的并排读/写头,其对于顶盘和底盘表面基本相同。 因此,公共的头托架用作可用于顶部和底部盘表面的单个可制造部件。 公共头托架具有后端,其上形成有包括三个并排换能器和端子排组的部件图案。 在读/写/读并排磁头布置中,第一元件是诸如感应线圈的中心写元件,并且第二和第三元件是读取元件,例如磁阻读取元件,其大致相等 与中心写入元件间隔开。 在用于顶部磁盘表面的公共载体中,读取元件中的一个电连接到磁盘驱动器的读取/写入通道,并且在用于底部磁盘表面的公共载体中,另一个读取元件 公共载体电连接到读/写通道。 因此,磁盘驱动器以圆柱模式并行地使用顶部和底部磁盘表面的公共载体。

    Methods for forming a reed sensor
    8.
    发明授权
    Methods for forming a reed sensor 有权
    形成簧片传感器的方法

    公开(公告)号:US07380331B2

    公开(公告)日:2008-06-03

    申请号:US11132689

    申请日:2005-05-18

    IPC分类号: G11B5/187 C23C14/04

    摘要: A method comprises depositing first and second lead layers in end regions which surround a central region; and forming a read sensor in the central region such that a first edge of the read sensor is disposed above an edge of the first lead layer and a second edge of the read sensor is disposed above an edge of the second lead layer. In one approach, first and second bias layers are deposited in end regions over the first and the second lead layers. The read sensor is formed in the central region such that the first edge of the read sensor is disposed above an edge of the first bias layer and the second edge of the read sensor is disposed above an edge of the second bias layer. Third and fourth bias layers are deposited adjacent the read sensor. Methods taking different approaches are also presented.

    摘要翻译: 一种方法包括在围绕中心区域的端部区域中沉积第一和第二引线层; 以及在所述中央区域中形成读取传感器,使得所述读取传感器的第一边缘设置在所述第一引线层的边缘上方,并且所述读取传感器的第二边缘设置在所述第二引线层的边缘的上方。 在一种方法中,第一和第二偏压层沉积在第一和第二引线层上的端部区域中。 读取传感器形成在中央区域,使得读取传感器的第一边缘设置在第一偏置层的边缘上方,并且读取传感器的第二边缘设置在第二偏置层的边缘上方。 第三和第四偏置层沉积在读取传感器附近。 还提出了采取不同方法的方法。

    Method and device for determining in-process characteristics of fabricated magnetic heads
    10.
    发明授权
    Method and device for determining in-process characteristics of fabricated magnetic heads 失效
    用于确定制造磁头的工艺特性的方法和装置

    公开(公告)号:US06779249B2

    公开(公告)日:2004-08-24

    申请号:US09815906

    申请日:2001-03-23

    IPC分类号: G11B5127

    摘要: A method for determining a characteristic of a magnetic head during its fabrication process on the surface of a wafer substrate. The method involves the fabrication of a test magnetic pole artifact in a field area of the substrate surface adjacent to the actual magnetic pole that is being fabricated. A test pole structure is fabricated simultaneously with, and utilizing the same fabrication conditions and parameters as, the actual pole such that the test pole is nearly identical to the actual pole. During a field etch step undertaken in the fabrication of the actual pole, portions of the test pole structure are removed, leaving a test pole artifact on the wafer surface. The test pole artifact can thus be easily measured as an accurate indication of characteristics of the actual magnetic pole that are difficult to measure directly, thereby saving time and expense in the magnetic head fabrication process. This method is particularly suited to determining the width of the base of the P2 pole tip of a magnetic head, where measurement of the base of the actual magnetic head pole tip is made difficult by the presence of the pole tip, and where the test artifact is easily measured because the test pole tip structure has been etched away, leaving only the artifact for measurement.

    摘要翻译: 一种用于在其制造工艺中在晶片衬底的表面上确定磁头的特性的方法。 该方法涉及在正在制造的实际磁极附近的衬底表面的场区域中制造测试磁极伪影。 测试极结构与实际极同时制造并利用与实际极相同的制造条件和参数,使得测试极几乎与实际极相同。 在实际极的制造中进行的场蚀刻步骤期间,测试极结构的部分被去除,在晶片表面上留下测试极伪影。 因此,测试极赝像可以容易地测量为难以直接测量的实际磁极的特性的精确指示,从而节省了磁头制造过程中的时间和费用。 该方法特别适用于确定磁头的P2极尖的基部的宽度,其中通过极尖的存在使实际磁头极尖的基极测量变得困难,并且其中测试伪影 容易测量,因为测试极端部结构已被蚀刻掉,仅留下测量的伪影。