公开(公告)号：US07428124B1

公开(公告)日：2008-09-23

申请号：US11350993

申请日：2006-02-09

申请人： Suping Song ,  Hai Jiang ,  Charles W. Miller ,  Kroum Stoev

发明人： Suping Song ,  Hai Jiang ,  Charles W. Miller ,  Kroum Stoev

IPC分类号： G11B5/147

CPC分类号： G11B5/3133 ,  G11B5/6064 ,  G11B5/607

摘要： A thin film magnetic head includes a slider body having a trailing surface meeting an air-bearing surface at a trailing edge. A magnetic read and write elements are disposed along the trailing surface near the trailing edge. The magnetic write element includes write poles and a coil. A portion of a heating element is disposed in a first general plane beneath the coil and above the magnetic read element. At least one thermally-insulating layer of material having a thermal conductivity of less than about 2.0 W/m-K extends in a second general plane substantially beneath the heating element.

摘要翻译： 薄膜磁头包括滑块主体，其具有在后缘处会合空气轴承表面的后表面。 沿着后缘附近的后表面设置磁读写元件。 磁写入元件包括写入极和线圈。 加热元件的一部分设置在线圈下方的第一通用平面中，并且位于磁读取元件的上方。 导热率小于约2.0W / m-K的材料的至少一种绝热层在基本上在加热元件的下方的第二平面内延伸。

公开(公告)号：US20050007696A1

公开(公告)日：2005-01-13

申请号：US10903977

申请日：2004-07-29

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

发明人： Yingjian Chen ,  Xiaozhong Dang ,  Francis 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.

公开(公告)号：US06791793B1

公开(公告)日：2004-09-14

申请号：US09952989

申请日：2001-09-14

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： G11B5147

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 adjunct pole is substantially recessed from the air bearing surface. 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。 附加杆基本上从空气轴承表面凹入。 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。

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。

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。

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。

公开(公告)号：US06989972B1

公开(公告)日：2006-01-24

申请号：US10261119

申请日：2002-09-30

申请人： Kroum Stoev ,  Mathew Gibbons ,  Francis Liu ,  Bogdan M. Simion ,  Aparna C. Vadde ,  Jing Zhang ,  Yiming Huai ,  Marcos M. Lederman

发明人： Kroum Stoev ,  Mathew Gibbons ,  Francis Liu ,  Bogdan M. Simion ,  Aparna C. Vadde ,  Jing Zhang ,  Yiming Huai ,  Marcos M. Lederman

IPC分类号： G11B5/39

CPC分类号： G11B5/3932

摘要： Magnetoresistive (MR) sensors have leads that overlap a MR structure and distribute current to the MR structure so that the current is not concentrated in small portions of the leads. An electrically resistive capping layer can be formed between the leads and the MR structure to distribute the current. The leads can include resistive layers and conductive layers, the resistive layers having a thickness-to-resistivity ratio that is greater than that of each of the conductive layers. The resistive layers may protect the conductive layers during MR structure etching, so that the leads have broad layers of electrically conductive material for connection to MR structures. The broad leads conduct heat better than the read gap material that they replace, further reducing the temperature at the connection between the leads and the MR structure.

摘要翻译： 磁阻（MR）传感器具有与MR结构重叠并且将电流分配到MR结构的引线，使得电流不集中在引线的小部分中。 可以在引线和MR结构之间形成电阻覆盖层以分布电流。 引线可以包括电阻层和导电层，电阻层的厚度 - 电阻率比大于每个导电层的厚度 - 电阻率比。 电阻层可以在MR结构蚀刻期间保护导电层，使得引线具有用于连接到MR结构的宽的导电材料层。 宽引线比它们所替代的读取间隙材料更好地传导热量，进一步降低引线与MR结构之间的连接处的温度。

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。