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    Layered return poles for magnetic write heads
    1.
    发明申请
    Layered return poles for magnetic write heads 有权
    磁性写头的分层返回极

    公开(公告)号：US20090168260A1

    公开(公告)日：2009-07-02

    申请号：US12005558

    申请日：2007-12-26

    申请人： Donald G. Allen ,  Hieu Lam ,  Terence Tin-Lok Lam ,  Steve C. Puga

    发明人： Donald G. Allen ,  Hieu Lam ,  Terence Tin-Lok Lam ,  Steve C. Puga

    IPC分类号： G11B5/33

    CPC分类号： G11B5/3153 ,  G11B5/1278

    摘要： Methods and structures for the fabrication of both thin film longitudinal and perpendicular write heads are disclosed. A unique feature of these write heads is the inclusion of layered return poles, which comprise alternating layers of 22/78 and 80/20 NiFe alloys. The alternating layers also vary in thickness, the 22/78 NiFe layers having a nominal thickness of 1500 angstroms and the 80/20 NiFe layers having a nominal thickness of about 75 angstroms. Head efficiency and signal to noise ratios are significantly improved in heads having layered return pole construction.

    摘要翻译： 公开了用于制造薄膜纵向和垂直写入头的方法和结构。 这些写头的一个独特之处在于包含层叠的返回极，其包括22/78和80/20 NiFe合金的交替层。 交替层的厚度也变化，22/78 NiFe层的标称厚度为1500埃，而80/20 NiFe层的标称厚度为约75埃。 在具有分层回极结构的头部中，头部效率和信噪比显着提高。

    Layered return poles for magnetic write heads
    2.
    发明授权
    Layered return poles for magnetic write heads 有权
    用于磁性写入头的分层返回极

    公开(公告)号：US07933096B2

    公开(公告)日：2011-04-26

    申请号：US12005558

    申请日：2007-12-26

    申请人： Donald G. Allen ,  Hieu Lam ,  Terence Tin-Lok Lam ,  Steve C. Puga

    发明人： Donald G. Allen ,  Hieu Lam ,  Terence Tin-Lok Lam ,  Steve C. Puga

    IPC分类号： G11B5/33

    CPC分类号： G11B5/3153 ,  G11B5/1278

    摘要： Methods and structures for the fabrication of both thin film longitudinal and perpendicular write heads are disclosed. A unique feature of these write heads is the inclusion of layered return poles, which comprise alternating layers of 22/78 and 80/20 NiFe alloys. The alternating layers also vary in thickness, the 22/78 NiFe layers having a nominal thickness of 1500 angstroms and the 80/20 NiFe layers having a nominal thickness of about 75 angstroms. Head efficiency and signal to noise ratios are significantly improved in heads having layered return pole construction.

    摘要翻译： 公开了用于制造薄膜纵向和垂直写入头的方法和结构。 这些写头的一个独特之处在于包含层叠的返回极，其包括22/78和80/20 NiFe合金的交替层。 交替层的厚度也变化，22/78 NiFe层的标称厚度为1500埃，而80/20 NiFe层的标称厚度为约75埃。 在具有分层回极结构的头部中，头部效率和信噪比显着提高。

    Component-support fixtures for component assembly system
    6.
    发明授权
    Component-support fixtures for component assembly system 失效
    组件支撑夹具用于组件装配系统

    公开(公告)号：US6145212A

    公开(公告)日：2000-11-14

    申请号：US118267

    申请日：1998-07-17

    申请人： Charles J. Geise ,  Karl F. Cummings ,  William C. Tuttle ,  Larry A. Couchman ,  Donald M. Searcy ,  Donald G. Allen

    发明人： Charles J. Geise ,  Karl F. Cummings ,  William C. Tuttle ,  Larry A. Couchman ,  Donald M. Searcy ,  Donald G. Allen

    IPC分类号： G01B5/207 ,  G01B5/20

    CPC分类号： G01B5/207

    摘要： A fixture for interacting with an exhaust system having exhaust pipes and mufflers and an image of the exhaust system, the image having location indicia locating the fixture on the image, displacement data associated with the location indicia indicates an alignment point in space above the image, the fixture comprising at least two stands adapted to lie in a selected positions relative to the image, an alignment mark on the stands, the alignment mark being adapted to align the stands with the location indicia on the image, and at least two modules, a plurality of holders configured differently from one another to be attached to a module, each holder defining a coordinate point that moves relative to the stand and image in response to movement of the module relative to the stand, the plurality of holders including at least one pipe holder configured to receive the exhaust pipe therein to position a central axis of the exhaust pipe at the coordinate point and a muffler holder configured to cooperate with another stand and another module to receive a muffler, and wherein the modules are configured to be coupled to the stand for movement relative to the stand to position the coordinate point of an attached holder at the alignment point in space above the image so that the module is moved to assume a selected position relative to the stand.

    摘要翻译： 用于与具有排气管和消音器的排气系统以及排气系统的图像相互作用的固定装置，具有将图像上的固定装置定位的位置标记的图像，与位置标记相关联的位移数据表示图像上方的空间中的对准点， 所述夹具包括至少两个支架，其适于位于相对于所述图像的选定位置，所述支架上的对准标记，所述对准标记适于将所述支架与所述图像上的位置标记对准，以及至少两个模块， 多个保持器构造成彼此不同以被附接到模块，每个保持器限定响应于模块相对于支架的移动而相对于支架和图像移动的坐标点，所述多个保持器包括至少一个管 保持器构造成在其中接收排气管以将排气管的中心轴定位在坐标点处，并且构造消声器保持器 与另一个支架和另一个模块配合以接收消音器，并且其中模块被配置为联接到支架以相对于支架移动，以将附着的支架的坐标点定位在图像上方的空间中的对准点处， 模块被移动以相对于支架采取选定的位置。

    Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge
    9.
    发明授权
    Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge 有权
    具有磁写入磁极的垂直磁性写头具有凹形后缘

    公开(公告)号：US07576951B2

    公开(公告)日：2009-08-18

    申请号：US11411556

    申请日：2006-04-25

    申请人： Donald G. Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aaron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

    发明人： Donald G. Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aaron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

    摘要： A magnetic write head for perpendicular magnetic recording having a write pole with a concave trailing edge. The magnetic write pole can have a trapezoidal shape with first and second laterally opposed sides that are further apart at the trailing edge than at the leading edge. The write head may or may not include a magnetic trailing shield, and if a trailing shield is included it is separated from the trailing edge by a non-magnetic write gap layer. The concave trailing edge improves magnetic performance such as by improving the transition curvature. A method for constructing the write head includes forming a magnetic write pole by forming a mask structure over a deposited write pole material, the mask structure having an alumina hard mask and an image transfer layer such as DURAMIDE®. An alumina fill layer is then deposited and a chemical mechanical polish is performed to open up the image transfer layer. A reactive on etch is performed to remove the image transfer layer and a reactive ion mill or reactive ion etch is performed to remove the alumina hard mask and form a concave surface on the write pole.

    摘要翻译： 用于垂直磁记录的磁写头，具有带有凹后缘的写极。 磁性写入极可以具有梯形形状，其中第一和第二横向相对侧在后缘处比在前缘处更远地分开。 写头可以包括或可以不包括磁性后屏蔽，并且如果包括后屏蔽，则其通过非磁性写间隙层与后缘分离。 凹形后边缘提高磁性能，例如通过改善转变曲率。 构成写入头的方法包括通过在沉积的写入极材料上形成掩模结构来形成磁性写入极，掩模结构具有氧化铝硬掩模和诸如DURAMIDE的图像转移层。 然后沉积氧化铝填充层，并执行化学机械抛光以打开图像转印层。 执行反应性蚀刻以去除图像转印层，并且执行反应性离子磨或反应离子蚀刻以除去氧化铝硬掩模并在写入极上形成凹面。

    Damascene coil design for a perpendicular magnetic recording head
    10.
    发明申请
    Damascene coil design for a perpendicular magnetic recording head 有权
    大马士革线圈设计用于垂直磁记录头

    公开(公告)号：US20080002290A1

    公开(公告)日：2008-01-03

    申请号：US11478925

    申请日：2006-06-30

    申请人： Donald G. Allen ,  Edward Hin Pong Lee ,  Jennifer Ai-Ming Loo

    发明人： Donald G. Allen ,  Edward Hin Pong Lee ,  Jennifer Ai-Ming Loo

    IPC分类号： G11B5/17

    CPC分类号： G11B5/1278 ,  G11B5/3123 ,  G11B5/3163

    摘要： A magnetic recording head for use in perpendicular magnetic recording having a design that allows the write coil to be manufactured by a damascene process for increased coil pitch and reduced coil resistance. The magnetic write head includes a photoresist dam structure that allows a hard baked photoresist to be formed that does not extend to the air bearing surface (ABS). Since the photoresist dam prevents the hard baked photoresist from reaching the ABS, the a damascene process, in which the hard baked photoresist remains in the finished write head, can be used to produce the write head. The use of such a damascene process advantageously allows the space between the coil turns to be reduced, which maximizes the number of turns that can be used and also maximizes the number width to which the coil turns can be constructed, thereby minimizing the electrical resistance of the write coil.

    摘要翻译： 一种用于垂直磁记录的磁记录头，其具有允许通过镶嵌工艺制造写入线圈以增加线圈间距并减小线圈电阻的设计。 磁写头包括光致抗蚀剂阻挡结构，其允许形成不延伸到空气轴承表面（ABS）的硬烘烤光致抗蚀剂。 由于光致抗蚀剂防止了硬烘烤的光致抗蚀剂到达ABS，所以可以使用其中硬烘烤的光致抗蚀剂保留在完成的写入头中的镶嵌工艺来产生写入头。 使用这种镶嵌工艺有利地减小了线圈匝之间的空间，这使得可以使用的匝数最大化，并且还使构造线圈匝数的数量最大化，从而最小化电阻 写线圈。