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    Magnetic heads for perpendicular recording with trapezoidal pole tips
    2.
    发明授权
    Magnetic heads for perpendicular recording with trapezoidal pole tips 有权
    用于垂直记录的梯形磁极头

    公开(公告)号：US06809899B1

    公开(公告)日：2004-10-26

    申请号：US10751215

    申请日：2003-12-31

    申请人： Yingjian Chen ,  Yugang Wang ,  Francis Liu ,  Xizeng Shi ,  Kyusik Sin ,  Hugh Craig Hiner

    发明人： Yingjian Chen ,  Yugang Wang ,  Francis Liu ,  Xizeng Shi ,  Kyusik Sin ,  Hugh Craig Hiner

    IPC分类号： G11B5147

    CPC分类号： G11B5/1278 ,  Y10S977/934

    摘要： Electromagnetic transducers are disclosed having write poles with a leading edge that is smaller than a trailing edge, which can reduce erroneous writing for perpendicular recording systems. The write poles may have a trapezoidal shape when viewed from a direction of an associated medium. The write poles may be incorporated in heads or sliders that also contain read elements such as magnetoresistive sensors, and may be employed with information storage systems such as disk drives.

    摘要翻译： 公开了具有写入极的电磁换能器，其前缘小于后缘，这可以减少用于垂直记录系统的错误写入。 当从相关联的介质的方向观察时，写入极可以具有梯形形状。 写入极可以并入还包含诸如磁阻传感器的读取元件的磁头或滑块中，并且可以用于诸如磁盘驱动器的信息存储系统。

    Method for providing pedestal-defined zero throat writer
    4.
    发明授权
    Method for providing pedestal-defined zero throat writer 失效
    提供基座定义零喉作家的方法

    公开(公告)号：US06785955B1

    公开(公告)日：2004-09-07

    申请号：US09769060

    申请日：2001-01-23

    申请人： Yingjian Chen ,  Hugh Craig Hiner ,  Benjamin Chen ,  Xizeng Shi ,  Kyusik Sin

    发明人： Yingjian Chen ,  Hugh Craig Hiner ,  Benjamin Chen ,  Xizeng Shi ,  Kyusik Sin

    IPC分类号： H04R3100

    CPC分类号： G11B5/3967 ,  G11B5/3109 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49062

    摘要： A method and system for providing a writer is disclosed. The method and system include providing a first pole, an insulator covering a portion of the first pole and a coil on the first insulator. The coil includes a plurality of turns. The method and system also include providing a second insulator covering the coil, providing a second pole on the second insulator and providing a write gap separating a portion of the first pole from a second portion of the second pole. A first portion of the second pole is coupled with the first pole. In one aspect, the method and system include providing a coil having a plurality of turns with a pitch of no more than 1.2 micrometers. In another aspect, the plurality of turns of the coil is provided using a hard mask layer on a photoresist layer. A portion of the hard mask layer and a portion of the photoresist layer define a plurality of spaces between the pluralities of turns of the coil. In another aspect, the writer is a pedestal defined zero throat writer. In this aspect, the first insulator has a depression therein and the coil is provided on the depression.

    摘要翻译： 公开了一种用于提供写入器的方法和系统。 该方法和系统包括提供第一极，覆盖第一极的一部分的绝缘体和第一绝缘体上的线圈。 线圈包括多个匝。 该方法和系统还包括提供覆盖线圈的第二绝缘体，在第二绝缘体上提供第二极，并提供将第一极的一部分与第二极的第二部分分开的写间隙。 第二极的第一部分与第一极耦合。 在一个方面，该方法和系统包括提供具有不超过1.2微米的间距的多个匝的线圈。 在另一方面，使用光致抗蚀剂层上的硬掩模层来提供线圈的多圈。 硬掩模层的一部分和光致抗蚀剂层的一部分在线圈的多圈之间限定多个空间。 在另一方面，作者是一个基座定义的零喉作家。 在这方面，第一绝缘体具有凹陷，线圈设置在凹部上。

    Write head having a recessed, magnetic adjunct pole formed atop a main pole, and method of making the same
    5.
    发明授权
    Write head having a recessed, magnetic adjunct pole formed atop a main pole, and method of making the same 有权
    具有形成在主极上方的凹入的磁性辅助极的写头及其制造方法

    公开(公告)号：US06906894B2

    公开(公告)日：2005-06-14

    申请号：US10903977

    申请日：2004-07-29

    申请人： Yingjian Chen ,  Xiaozhong Dang ,  Francis H. Liu ,  Kroum Stoev ,  Hai Jiang ,  Yugang Wang ,  Xizeng Shi

    发明人： Yingjian Chen ,  Xiaozhong Dang ,  Francis H. Liu ,  Kroum Stoev ,  Hai Jiang ,  Yugang Wang ,  Xizeng Shi

    IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/147

    CPC分类号： G11B5/1278 ,  G11B5/3109 ,  Y10T29/49034 ,  Y10T29/49044

    摘要： A read/write head and method of making the same are used in a data storage system, such as a disk drive, for perpendicular magnetic recording of data. The head employs a two-layer pole design with a main pole made of sputtered high moment magnetic material, and an adjunct pole made of electroplated soft magnetic film. The main pole is used to write data onto the medium, and is formed over the write coil. The adjunct pole is substantially recessed from the air bearing surface and is formed over the main pole. The present head design significantly enhances the magnetic write field, and substantially reduces side-writing that result in accidental erasure of data in adjacent tracks on the magnetic recording medium.

    摘要翻译： 读/写头及其制造方法用于数据存储系统，例如磁盘驱动器，用于数据的垂直磁记录。 头部采用双层极设计，其主极由溅射高磁矩材料制成，电极由电镀软磁膜制成。 主极用于将数据写入介质，并形成在写入线圈上。 辅助杆从空气轴承表面基本上凹入并且形成在主极上。 本头设计显着增强了磁写入场，并且基本上减少了导致磁记录介质上的相邻轨道中的数据的意外擦除的侧写。

    Inductive transducer with recessed leading pole layer
    7.
    发明授权
    Inductive transducer with recessed leading pole layer 有权
    具有凹陷前导极层的感应传感器

    公开(公告)号：US06724572B1

    公开(公告)日：2004-04-20

    申请号：US10086756

    申请日：2002-02-28

    申请人： Kroum Stoev ,  Yugang Wang ,  Francis Liu ,  Yingjian Chen ,  Xiaozhong Dang

    发明人： Kroum Stoev ,  Yugang Wang ,  Francis Liu ,  Yingjian Chen ,  Xiaozhong Dang

    IPC分类号： G11B5147

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/187 ,  G11B5/23 ,  G11B5/3103 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3146 ,  G11B5/332 ,  G11B5/3909 ,  G11B5/3967 ,  G11B2005/3996

    摘要： In one aspect, an inductive transducer is disclosed having a leading pole layer and a leading pole tip, with the pole layer being further removed than the pole tip from a media-facing surface. In another aspect, an inductive transducer is disclosed having a magnetic pedestal disposed between a leading pole layer and a leading pole tip, with at least one of the pedestal and pole layer being further removed than the pole tip from a media-facing surface. In another aspect, a leading pole layer or pedestal may have a surface that slopes away from the media-facing surface with increasing distance forward from the leading pole tip.

    摘要翻译： 在一个方面，公开了一种电感式换能器，其具有引导极层和引导极尖端，其中极层比面向介质的表面比极尖更进一步去除。 另一方面，公开了一种电感换能器，其具有设置在引导极层和前导极尖端之间的磁性基座，其中基座和极层中的至少一个比来自面向介质的表面的极尖更进一步地去除。 在另一方面，前导极层或基座可以具有远离所述面向介质的表面的表面，所述表面具有与所述引导极端部向前的距离增加的距离。

    Double-nosed inductive transducer with reduced off-track writing
    8.
    发明授权
    Double-nosed inductive transducer with reduced off-track writing 有权
    双向电感式换能器，减少了离轨写入

    公开(公告)号：US07113366B1

    公开(公告)日：2006-09-26

    申请号：US10290880

    申请日：2002-11-07

    申请人： Yugang Wang ,  Kroum Stoev ,  Francis Liu ,  Yingjian Chen

    发明人： Yugang Wang ,  Kroum Stoev ,  Francis Liu ,  Yingjian Chen

    IPC分类号： G11B5/187

    CPC分类号： G11B5/3116

    摘要： A thin film electromagnetic head has an inductive transducer with a double-nosed ferromagnetic trailing pole layer. The trailing pole layer has a trailing pole tip disposed adjacent to a media-facing surface, a trailing pole yoke disposed distal to the media-facing surface, and a trailing pole nose disposed between the trailing pole tip and the trailing pole yoke. The media-facing surface extends as a substantially flat surface in all directions from the trailing pole tip. The length of the trailing pole nose may be at least twice as long as the trailing pole tip length. The width of the trailing pole nose can be 10 to 30 times as wide as the trailing pole tip width. An inductive transducer having a double-nosed trailing pole layer provides a higher ratio of on-track to off-track write fields, thereby improving the density with which data can be written to the recording media. Such a double-nosed trailing pole layer can be used in transducers for either longitudinal or perpendicular magnetic recording.

    摘要翻译： 薄膜电磁头具有具有双尖铁磁后极层的感应换能器。 后极层具有邻近面向媒体的表面设置的尾极尖端，设置在面向介质的表面的远侧的后极轭，以及设置在后极端和后极轭之间的后极端。 面向媒体的表面作为从所述尾杆末端的所有方向上的基本上平坦的表面延伸。 尾杆鼻部的长度可以至少是尾杆末端长度的两倍。 尾杆鼻的宽度可以是尾杆尖宽度的10至30倍。 具有双端尾磁极层的电感式换能器提供了较高的导轨与非磁道写磁场的比率，从而提高了数据可以写入记录介质的密度。 这样的双头后磁极层可用于用于纵向或垂直磁记录的换能器中。

    Writer with a hot seed zero throat and substantially flat top pole
    9.
    发明授权
    Writer with a hot seed zero throat and substantially flat top pole 有权
    作者有一个热种子零喉咙和基本平坦的顶极

    公开(公告)号：US06912106B1

    公开(公告)日：2005-06-28

    申请号：US10213532

    申请日：2002-08-06

    申请人： Yingjian Chen ,  Qing He ,  Yugang Wang ,  Kroum Stoev ,  Francis Liu ,  Xiaozhong Dang

    发明人： Yingjian Chen ,  Qing He ,  Yugang Wang ,  Kroum Stoev ,  Francis Liu ,  Xiaozhong Dang

    IPC分类号： G11B5/31 ,  G11B5/147

    CPC分类号： G11B5/3163 ,  G11B5/3116 ,  G11B5/3143

    摘要： A method and system for providing a recording head is disclosed. The method and system include providing a first pole, a second pole, a write gap and at least one coil. The write cap separates the first pole from the second pole. The coil(s) include a plurality of turns and is between the first and second poles. The first pole includes a pedestal that has a first portion and a second portion. The first portion includes a high moment electroplated material. The second portion includes a hot seed layer that has a high moment sputtered material. The second portion of the first pole is adjacent to the write gap.

    摘要翻译： 公开了一种用于提供记录头的方法和系统。 该方法和系统包括提供第一极，第二极，写间隙和至少一个线圈。 写帽将第一极与第二极分开。 线圈包括多个匝并且在第一和第二极之间。 第一极包括具有第一部分和第二部分的基座。 第一部分包括高电流电镀材料。 第二部分包括具有高力矩溅射材料的热种子层。 第一极的第二部分与写入间隙相邻。