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公开(公告)号：US5755612A
公开(公告)日：1998-05-26
申请号：US738693
申请日：1996-10-28
CPC分类号： G11B5/3903 , G11B5/3103 , G11B5/3116 , G11B5/3163 , G11B5/3166 , G11B5/398 , Y10T29/49048
摘要： An electrical lap guide (ELG) for use in lapping a bar of magnetic transducer carrying sliders to a desired height is disclosed. A first lapped or analog ELG element is positioned in a first dice lane on the bar between first and second sliders. A first electrical connection is positioned on a surface of the first dice lane for coupling the first ELG element to external circuitry. A second reference ELG element is positioned in the first slider at a position recessed from the lapped surface. A second electrical connection is positioned on the first slider for coupling the second ELG element to external circuitry.
摘要翻译： 公开了一种用于将携带滑块的磁性换能器棒研磨到所需高度的电动牵引导轨（ELG）。 第一重叠或模拟ELG元件位于第一和第二滑块之间的杆上的第一骰子通道中。 第一电连接位于第一骰子通道的表面上，用于将第一ELG元件耦合到外部电路。 第二参考ELG元件定位在第一滑动件处于从研磨表面凹陷的位置。 第二电连接位于第一滑块上，用于将第二ELG元件耦合到外部电路。
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公开(公告)号：US5816890A
公开(公告)日：1998-10-06
申请号：US793718
申请日：1997-03-03
申请人： Shanlin X. Hao , Lance E. Stover , Beat G. Keel
发明人： Shanlin X. Hao , Lance E. Stover , Beat G. Keel
IPC分类号： B23Q15/02 , B24B37/00 , B24B37/04 , B24B41/06 , B24B49/02 , B24B49/10 , G11B5/10 , G11B5/127 , G11B5/187 , G11B5/23 , G11B5/31 , G11B5/39
CPC分类号： B24B37/00 , B23Q15/02 , B24B37/048 , B24B41/06 , B24B49/02 , B24B49/10 , G11B5/102 , G11B5/3106 , G11B5/3116 , G11B5/3169 , G11B5/3903 , G11B5/1871 , G11B5/232 , G11B5/313 , G11B5/3166 , Y10T29/49037
摘要： An electrical lap guide (ELG) system and method are disclosed for use in lapping a bar 10 of magnetic transducer carrying sliders to a desired transducer height. A first ELG ELG1 contained within the bar has at least two first ELG resistive elements R.sub.11 and R.sub.12. A second ELG ELG 2 contained within the bar has at least two second ELG resistive elements R.sub.21 and R.sub.23. A first of the at least two first ELG resistive elements is electrically coupled to a first of the at least two second ELG resistive elements to thereby reduce a total number of leads needed between a data acquisition unit 100 and the bar 10 during lapping. The reduction in required data acquisition unit 100 leads allow more ELGs to be included on each bar 10 in order to more accurately control the lapping process.
摘要翻译： PCT No.PCT / US97 / 01324 Sec。 371日期1997年3月3日 102（e）1997年3月3日PCT 1997年1月30日PCT PCT。 公开号WO98 / 18596 日期1998年5月7日公开了一种用于将带有滑动件的磁性换能器的杆10研磨到期望的换能器高度的电动牵引导轨（ELG）系统和方法。 包含在棒内的第一ELG ELG1具有至少两个第一ELG电阻元件R11和R12。 包含在棒内的第二ELG ELG 2具有至少两个第二ELG电阻元件R21和R23。 所述至少两个第一ELG电阻元件中的第一个电耦合到所述至少两个第二ELG电阻元件中的第一ELG电阻元件，从而在研磨期间减少数据采集单元100和条10之间所需的导线总数。 所需数据获取单元100引线的减少允许在每个条10上包括更多的ELG，以便更准确地控制研磨过程。
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公开(公告)号：US6047224A
公开(公告)日：2000-04-04
申请号：US31959
申请日：1998-02-26
申请人： Lance E. Stover , Beat G. Keel , Shanlin X. Hao
发明人： Lance E. Stover , Beat G. Keel , Shanlin X. Hao
CPC分类号： G11B5/3116 , B24B37/04 , B24B49/10 , G11B5/1871 , G11B5/314 , G11B5/3166
摘要： An electrical lap guide (ELG) and a method of using the same to control the machining of a surface of a magnetic transducer to obtain a desired transducer height are disclosed. The transducer and ELG are fabricated in a deposition of layers on a substrate. The ELG includes a first resistor aligned with the transducer such that a machined height of the first resistor is indicative of a machined height of the transducer. Resistances of second and third resistors of the ELG are measured. A sheet resistance of the deposition of layers and a quantity of wafer processing edge movement are determined as functions of the measured resistances of the second and third resistors. An expected non-machined resistance of the first resistor is determined as a function of the determined sheet resistance and as a function of the determined quantity of edge movement. A non-machined resistance of the first resistor is measured. The expected non-machined resistance of the first resistor is compared to the measured non-machined resistance of the first resistor to determine an amount of error.
摘要翻译： 公开了一种电动牵引导轨（ELG）及其使用方法来控制磁换能器表面的加工以获得期望的换能器高度。 换能器和ELG在衬底上沉积层中制造。 ELG包括与换能器对准的第一电阻器，使得第一电阻器的加工高度指示换能器的加工高度。 测量ELG的第二和第三电阻器的电阻。 确定层的沉积的薄层电阻和晶片处理边缘移动的量作为测量的第二和第三电阻器的电阻的函数。 第一电阻器的预期未加工电阻被确定为所确定的薄层电阻的函数，并且作为所确定的边缘移动量的函数。 测量第一电阻器的非加工电阻。 将第一电阻器的预期非加工电阻与第一电阻器的测量的未加工电阻进行比较，以确定误差量。
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公开(公告)号：US5722155A
公开(公告)日：1998-03-03
申请号：US629524
申请日：1996-04-10
申请人： Lance E. Stover , Beat G. Keel , Shanlin X. Hao
发明人： Lance E. Stover , Beat G. Keel , Shanlin X. Hao
CPC分类号： G11B5/39 , B24B37/048 , B24B49/10 , G11B5/1272 , G11B5/1871 , G11B5/3116 , G11B5/314 , G11B5/3166 , Y10T29/49037 , Y10T29/49048
摘要： An electrical lap guide (ELG) and a method of using the same to control the machining of a surface of a magnetic transducer to obtain a desired transducer height are disclosed. The transducer and ELG are fabricated in a deposition of layers on a substrate. The ELG includes a first resistor aligned with the transducer such that a machined height of the first resistor is indicative of a machined height of the transducer. Resistances of second and third resistors of the ELG are measured. A sheet resistance of the deposition of layers and a quantity of wafer processing edge movement are determined as functions of the measured resistances of the second and third resistors. An expected non-machined resistance of the first resistor is determined as a function of the determined sheet resistance and as a function of the determined quantity of edge movement. A non-machined resistance of the first resistor is measured. The expected non-machined resistance of the first resistor is compared to the measured non-machined resistance of the first resistor to determine an amount of error.
摘要翻译： 公开了一种电动牵引导轨（ELG）及其使用方法来控制磁换能器表面的加工以获得期望的换能器高度。 换能器和ELG在衬底上沉积层中制造。 ELG包括与换能器对准的第一电阻器，使得第一电阻器的加工高度指示换能器的加工高度。 测量ELG的第二和第三电阻器的电阻。 确定层的沉积的薄层电阻和晶片处理边缘移动的量作为测量的第二和第三电阻器的电阻的函数。 第一电阻器的预期未加工电阻被确定为所确定的薄层电阻的函数，并且作为所确定的边缘移动量的函数。 测量第一电阻器的未加工电阻。 将第一电阻器的预期非加工电阻与第一电阻器的测量的未加工电阻进行比较，以确定误差量。
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公开(公告)号：US5198948A
公开(公告)日：1993-03-30
申请号：US622558
申请日：1990-12-05
CPC分类号： G11B5/3143 , G11B5/4886
摘要： A servo head in a disk file data storage system includes at least one shield which acts to block radiation emanating from a nearby data head and thus reduce noise induced in the servo head. The shield is located on either side of an essentially flat conducting coil in a servo transducer, or a data transducer or both. The shield may be either a single layer of material or multiple layers.
摘要翻译： 磁盘文件数据存储系统中的伺服磁头包括至少一个屏蔽件，其用于阻止从附近的数据磁头发出的辐射，从而减少伺服磁头引起的噪声。 屏蔽位于伺服换能器中的基本平坦的导电线圈的两侧，或数据换能器或两者之间。 屏蔽可以是单层材料或多层。
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公开(公告)号：US5461528A
公开(公告)日：1995-10-24
申请号：US174140
申请日：1993-12-28
申请人： Beat G. Keel , Gale Jallen , Paul A. Jallen , Lance E. Stover , Halden W. Larson
发明人： Beat G. Keel , Gale Jallen , Paul A. Jallen , Lance E. Stover , Halden W. Larson
CPC分类号： G11B5/11 , G11B5/4886 , G11B5/5526 , G11B5/596
摘要： A servo head in a disc file data storage system includes a servo transducer and a coil which are connected so that noise induced by a nearby writing data head cancels. The servo transducer, mounted on a slider, reads information stored on a servo disc. The coil, also mounted on the slider, is connected to the servo transducer to produce an output signal so that noise signals induced in the servo transducer by operation of the data head tend to be canceled by noise signals induced in the coil by operation of the data head.
摘要翻译： 盘文件数据存储系统中的伺服头包括伺服换能器和线圈，其连接使得由附近的写数据头引起的噪声消除。 安装在滑块上的伺服传感器读取存储在伺服盘上的信息。 也安装在滑动器上的线圈连接到伺服换能器以产生输出信号，使得通过数据头的操作在伺服换能器中感应的噪声信号趋向于被线圈中感应的噪声信号抵消 数据头。
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7.发明授权Integrated piezoelectric and thermal asperity transducers for testing disc media in high performance disc drives 失效用于测试高性能光盘驱动器中的光盘介质的集成压电和热凹凸传感器
公开(公告)号：US5872311A
公开(公告)日：1999-02-16
申请号：US839992
申请日：1997-04-24
IPC分类号： G01B7/34 , G11B5/012 , G11B5/10 , G11B5/48 , G11B5/55 , G11B5/58 , G11B5/60 , G11B19/04 , G11B27/34 , G11B33/10 , G01B21/30
CPC分类号： G01B7/345 , G11B19/04 , G11B5/10 , G11B5/58 , G11B27/34 , G11B33/10 , G11B5/012 , G11B5/4886 , G11B5/5534 , G11B5/6011
摘要： A device for testing smoothness of a rotatable disc is disclosed. A slider body has a trailing edge surface and an air-bearing surface for gliding over a surface of the disc when the disc is rotating. A piezoelectric sensor is formed in the slider body, and a thermal asperity sensor is formed in the slider body and at least partially exposed to the air-bearing surface. A plurality of conductive vias extend from the trailing edge surface of the slider body into the slider body to contact the piezoelectric and thermal asperity sensors. A plurality of conductive bond pads are disposed on the trailing edge surface in contact with respective conductive vias.
摘要翻译： 公开了一种用于测试可旋转盘的平滑度的装置。 滑块体具有后缘表面和用于在盘旋转时在盘的表面上滑动的空气轴承表面。 压电传感器形成在滑块体中，并且热敏凹凸传感器形成在滑块体中并且至少部分地暴露于空气轴承表面。 多个导电通孔从滑块体的后缘表面延伸到滑块体中以接触压电和热凹凸传感器。 多个导电接合焊盘设置在与相应的导电通孔接触的后缘表面上。
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公开(公告)号：US5566038A
公开(公告)日：1996-10-15
申请号：US430310
申请日：1995-04-28
申请人： Beat G. Keel , Brian G. Ehalt , Raymond W. Knight
发明人： Beat G. Keel , Brian G. Ehalt , Raymond W. Knight
CPC分类号： G11B5/3103 , G11B5/11 , G11B5/3106 , G11B5/3143 , G11B5/40
摘要： A thin film transducer having electrical connections for the discharge of electrostatic charges between coil and core is disclosed. The invention provides for conductive surfaces electrically connected to the coil and core, respectively. These surfaces are selectively positioned so as to define an air gap having a breakdown voltage below that of the insulation layer separating coil and core in the transducer.
摘要翻译： 公开了一种具有用于在线圈和芯之间排出静电电荷的电连接的薄膜换能器。 本发明提供了分别电连接到线圈和芯的导电表面。 这些表面被选择性地定位成限定了具有低于换能器中绝缘层分离线圈和芯的击穿电压的气隙。
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公开(公告)号：US5373624A
公开(公告)日：1994-12-20
申请号：US960791
申请日：1992-10-14
申请人： Ying D. Yan , John Bortins , Beat G. Keel , Nurul Amin
发明人： Ying D. Yan , John Bortins , Beat G. Keel , Nurul Amin
CPC分类号： G11B5/3143 , Y10T29/49032
摘要： A thin film magnetic read/write head deposited upon a non-magnetic substrate reduces leading edge undershoots in readback pulse signal. A magnetic layer is deposited between the thin film magnetic read/write head and the non-magnetic substrate. Undershoots are reduced by making the leading edge of the thin film head less sensitive to the magnetization transitions in a magnetic storage medium.
摘要翻译： 沉积在非磁性衬底上的薄膜磁读/写头减少了回读脉冲信号中的前沿下冲。 磁性层沉积在薄膜磁读/写头和非磁性基片之间。 通过使薄膜头的前缘对磁存储介质中的磁化转变较不敏感来减少下冲。
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公开(公告)号：US5084957A
公开(公告)日：1992-02-04
申请号：US609921
申请日：1990-11-06
申请人： Nurul Amin , John Bortins , Beat G. Keel , Ying D. Yan
发明人： Nurul Amin , John Bortins , Beat G. Keel , Ying D. Yan
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49044 , Y10T29/49064
摘要： A thin film magnetic read/write head is manufactured using Al.sub.2 O.sub.3 dams. The Al.sub.2 O.sub.3 dams are formed using a sacrificial layer which is deposited upon a bottom pole layer. An Al.sub.2 O.sub.3 layer is deposited over the sacrificial layer. When the sacrificial layer is removed, the Al.sub.2 O.sub.3 layer forms dams between which a top pole piece is deposited. The sacrificial layer is removed using lapping and a selected chemical etch; partial lapping or chemical etch followed by chemical etch of the sacrificial layer which lifts-off overlying Al.sub.2 O.sub.3 ; depositing photoresist dams and chemically etching the encapsulation layer and the sacrificial layer; or removal through physical or thermal shock of the Al.sub.2 O.sub.3 layer sputtered at zero bias followed by a selective chemical etch of the sacrificial layer.
摘要翻译： 使用Al2O3坝制造薄膜磁读/写头。 使用沉积在底极层上的牺牲层来形成Al 2 O 3坝。 在牺牲层上沉积Al 2 O 3层。 当牺牲层被去除时，Al 2 O 3层形成在其上沉积顶极片之间的堤坝。 使用研磨和选择的化学蚀刻去除牺牲层; 部分研磨或化学蚀刻，然后是上覆Al2O3的牺牲层的化学蚀刻; 沉积光刻胶坝并化学蚀刻封装层和牺牲层; 或通过在零偏压下溅射的Al 2 O 3层的物理或热冲击进行去除，随后对牺牲层进行选择性化学蚀刻。
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