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1. 发明申请

US20050068671A1 Magnetic transducer for perpendicular magnetic recording with single pole write head with trailing shield 有权
标题翻译：用于垂直磁记录的磁性传感器，带有后挡板的单刀头
公开(公告)号：US20050068671A1
公开(公告)日：2005-03-31
申请号：US10675046
申请日：2003-09-29
申请人： Yimin Hsu , Quang Le , Hin Lee , James Nix , Aron Pentek , Kurt Rubin , Neil Smith , Nian Sun , Walter Weresin , Mason Williams
发明人： Yimin Hsu , Quang Le , Hin Lee , James Nix , Aron Pentek , Kurt Rubin , Neil Smith , Nian Sun , Walter Weresin , Mason Williams
IPC分类号： G11B5/187 , G11B5/31 , G11B5/60 , H05K1/02 , G11B5/127
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/6005
摘要： The invention is a magnetic transducer with separated read and write heads for perpendicular recording. The write head has a trailing shield that extends from the return pole piece toward the main pole piece to form the write gap at the air-bearing surface. One embodiment of the trailing shield is a two part structure with a pedestal and a much smaller tip that confronts the main pole piece at the gap. In one embodiment a sink of non-magnetic, electrically conductive material is disposed in the separation gap between the read head and the flux bearing pole piece. The sink is preferably made of copper and does not extend to the ABS.
摘要翻译：本发明是具有分离的用于垂直记录的读写头的磁性换能器。写头具有从返回极片向主极片延伸的尾部屏蔽件，以在空气轴承表面形成写入间隙。后挡板的一个实施例是具有基座的两部分结构和在间隙处面对主极片的更小的尖端。在一个实施例中，非磁性导电材料的汇流槽设置在读头和磁通轴承极片之间的分隔间隙中。水槽优选由铜制成并且不延伸到ABS。

2. 发明申请

US20050068669A1 Head for perpendicular recording with a floating trailing shield 有权
标题翻译：头垂直记录与浮动的后盾
公开(公告)号：US20050068669A1
公开(公告)日：2005-03-31
申请号：US10671639
申请日：2003-09-26
申请人： Yimin Hsu , Quang Le , Mason Williams
发明人： Yimin Hsu , Quang Le , Mason Williams
IPC分类号： G11B5/31 , G11B5/127 , G11B5/147 , G11B5/187
CPC分类号： G11B5/315 , G11B5/1278 , G11B5/147 , G11B5/1871
摘要： Heads for perpendicular recording using a floating-trailing shield as part of the magnetic circuit for writing magnetic domains in the recording media are described. The floating-trailing shield is separated from the main pole piece by a layer of non-magnetic material along its entire length and the air bearing surface of the floating-trailing shield is substantially larger than that of the main pole piece. The reluctance between the trailing shield and the underlayer in the recording medium is made so low that both are at the same magnetomotive force (or potential), so that no direct connection is needed between the floating-trailing shield and the yoke. When the head is used in a storage system with a magnetic recording medium with a soft underlayer, the floating-trailing shield is, in effect, magnetically shorted to the return pole piece during recording. In a second embodiment of the invention the floating-trailing shield extends around the sides of the main pole piece to reduce the off-track magnetic field.
摘要翻译：描述了使用浮动拖尾屏蔽作为用于在记录介质中写入磁畴的磁路的一部分的垂直记录头。浮动后挡板沿着其整个长度由非磁性材料层与主极片分开，并且浮动后挡板的空气支承表面基本上大于主极片的空气支承表面。记录介质中的后屏蔽和底层之间的磁阻被制作得很低以致两者都具有相同的磁动势（或电位），使得在浮动后挡板和轭之间不需要直接连接。当头部用于具有软底层的磁记录介质的存储系统中时，浮动拖尾屏蔽件实际上在记录期间与返回极片磁性短路。在本发明的第二实施例中，浮动后挡板围绕主极片的侧面延伸以减少偏离磁场。

3. 发明申请

US20050219747A1 Trailing edge taper design and method for making a perpendicular write head with shielding 有权
标题翻译：后缘锥形设计和垂直写头的屏蔽方法
公开(公告)号：US20050219747A1
公开(公告)日：2005-10-06
申请号：US10815286
申请日：2004-03-31
申请人： Yimin Hsu , Quang Le , Jui-Lung Li , Ian McFadyen , James Nix , Neil Robertson , Mason Williams
发明人： Yimin Hsu , Quang Le , Jui-Lung Li , Ian McFadyen , James Nix , Neil Robertson , Mason Williams
IPC分类号： G11B5/127 , G11B5/147 , G11B5/187 , G11B5/31
CPC分类号： G11B5/3146 , G11B5/1278 , G11B5/1872 , G11B5/3116
摘要： A magnetic write head for us in perpendicular magnetic recording tapered trailing shield design for improved write flux, and field gradient performance.
摘要翻译：一种用于我们的磁性写头，用于垂直磁记录锥形后屏蔽设计，用于改善写通量和场梯度性能。

4. 发明申请

US20070146930A1 Head for perpendicular recording with a floating-trailing shield 失效
标题翻译：用垂直记录的头部，带有浮动后挡板
公开(公告)号：US20070146930A1
公开(公告)日：2007-06-28
申请号：US11708958
申请日：2007-02-20
申请人： Yimin Hsu , Quang Le , Mason Williams
发明人： Yimin Hsu , Quang Le , Mason Williams
IPC分类号： G11B5/127 , G11B5/147 , G11B5/00
CPC分类号： G11B5/315 , G11B5/1278 , G11B5/147 , G11B5/1871
摘要： Heads for perpendicular recording using a floating-trailing shield are described. The floating-trailing shield is separated from the main pole piece by a layer of non-magnetic material along its entire length and the air bearing surface of the floating-trailing shield is substantially larger than that of the main pole piece. The reluctance between the trailing shield and the underlayer in the recording medium is made so low that both are at the same magnetomotive force (or potential), so that no direct connection is needed between the floating-trailing shield and the yoke. When the head is used in a storage system with a magnetic recording medium with a soft underlayer, the floating-trailing shield is, in effect, magnetically shorted to the return pole piece during recording. In one embodiment the floating-trailing shield wraps around the sides of the main pole piece.
摘要翻译：描述使用浮动后挡板进行垂直记录的头部。浮动后挡板沿着其整个长度由非磁性材料层与主极片分开，并且浮动后挡板的空气支承表面基本上大于主极片的空气支承表面。记录介质中的后屏蔽和底层之间的磁阻被制作得很低以致两者都具有相同的磁动势（或电位），使得在浮动后挡板和轭之间不需要直接连接。当头部用于具有软底层的磁记录介质的存储系统中时，浮动拖尾屏蔽件实际上在记录期间与返回极片磁性短路。在一个实施例中，浮动后挡板围绕主极片的侧面包裹。

5. 发明申请

US20050068678A1 Head for perpendicular magnetic recording with a shield structure connected to the return pole piece 有权
标题翻译：磁头垂直磁记录，屏蔽结构连接到返回极片
公开(公告)号：US20050068678A1
公开(公告)日：2005-03-31
申请号：US10676742
申请日：2003-09-30
申请人： Yimin Hsu , Quang Le , James Nix , Mason Williams
发明人： Yimin Hsu , Quang Le , James Nix , Mason Williams
IPC分类号： G11B5/187 , G11B5/00 , G11B5/11 , G11B5/127 , G11B5/147 , G11B5/31
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/315 , G11B2005/0029
摘要： An embodiment of the invention is a head for perpendicular recording that has a trailing shield and side shields that are connected to the return pole piece by two studs of ferromagnetic material. The studs extend parallel to the track direction and are located a sufficient distance away from the main pole piece to reduce the flux flow from the main pole piece to the studs. Optionally the studs can be recessed behind the air-bearing surface. The preferred embodiment of the invention is a magnetic transducer with separated read and write heads for perpendicular recording.
摘要翻译：本发明的一个实施例是用于垂直记录的头部，其具有通过两个铁磁材料柱连接到返回极片的后屏蔽和侧屏蔽。螺柱平行于轨道方向延伸，并且距离主极片足够远的距离，以减少从主极片到螺柱的通量流。可选地，螺柱可以凹入空气轴承表面后面。本发明的优选实施例是具有分离的用于垂直记录的读写头的磁性换能器。

6. 发明申请

US20080002292A1 Method And Apparatus For Providing A Reverse Air Bearing Surface Head With Trailing Shield Design For Perpendicular Recording 有权
标题翻译：用于提供反向空气轴承表面头的方法和装置，具有用于垂直记录的拖尾屏蔽设计
公开(公告)号：US20080002292A1
公开(公告)日：2008-01-03
申请号：US11852166
申请日：2007-09-07
申请人： Quang Le , James Nix , Aron Pentek , Walter Weresin , Mason Williams
发明人： Quang Le , James Nix , Aron Pentek , Walter Weresin , Mason Williams
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/1278 , Y10T29/49039 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method and apparatus for providing a reverse air bearing surface head with trailing shield design for perpendicular recording. A reverse air bearing surface head for perpendicular recording is provided with an inversed bevel shape to handle skew when recording data on a magnetic recording medium.
摘要翻译：一种用于提供具有用于垂直记录的后挡板设计的反向空气轴承表面头的方法和装置。用于垂直记录的反向空气轴承表面头设置有反转的斜面形状，以在磁记录介质上记录数据时处理偏斜。

7. 发明申请

US20050024766A1 Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece 失效
标题翻译：具有与第一极片磁耦合的写入屏蔽的垂直记录磁头
公开(公告)号：US20050024766A1
公开(公告)日：2005-02-03
申请号：US10631642
申请日：2003-07-30
申请人： Gautam Khera , Quang Le , Son Nguyen , Aron Pentek , Mason Williams
发明人： Gautam Khera , Quang Le , Son Nguyen , Aron Pentek , Mason Williams
IPC分类号： G11B5/127 , G11B5/31 , G11B5/33
CPC分类号： G11B5/127 , G11B5/1278 , G11B5/31 , G11B5/3153 , G11B5/3176 , G11B5/33
摘要： A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located between the first and second pole pieces and between a head surface of the write head and the back gap. The second pole piece has a pole tip which is located at the head surface and a recessed ferromagnetic write shield layer. A nonmagnetic isolation layer is located between the second pole piece and the write shield layer and at least one ferromagnetic stud is magnetically connected between the first pole piece layer and the write shield layer and is located between the head surface and the insulation stack.
摘要翻译：垂直记录写头具有在后隙连接的铁磁第一和第二极片，并且其中嵌有写入线圈层的绝缘堆叠位于第一和第二极靴之间以及写头的头表面和背隙。第二极片具有位于头表面的极尖和凹陷的铁磁写屏蔽层。非磁性隔离层位于第二极靴和写入屏蔽层之间，并且至少一个铁磁螺柱磁性地连接在第一极靴层和写入屏蔽层之间，并位于头部表面和绝缘堆叠之间。

8. 发明申请

US20060023352A1 Method and apparatus for providing a reverse air bearing surface head with trailing shield design for perpendicular recording 失效
标题翻译：用于提供具有用于垂直记录的后挡板设计的反向空气轴承表面头的方法和装置
公开(公告)号：US20060023352A1
公开(公告)日：2006-02-02
申请号：US10903983
申请日：2004-07-30
申请人： Quang Le , James Nix , Aron Pentek , Walter Weresin , Mason Williams
发明人： Quang Le , James Nix , Aron Pentek , Walter Weresin , Mason Williams
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , Y10T29/49039 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method and apparatus for providing a reverse air bearing surface head with trailing shield design for perpendicular recording. A reverse air bearing surface head for perpendicular recording is provided with an inversed bevel shape to handle skew when recording data on a magnetic recording medium.
摘要翻译：一种用于提供具有用于垂直记录的后挡板设计的反向空气轴承表面头的方法和装置。用于垂直记录的反向空气轴承表面头设置有反转的斜面形状，以在磁记录介质上记录数据时处理偏斜。

9. 发明申请

US20050007697A1 Magnetic transducer with pedestal pole piece structure 审中-公开
标题翻译：具有基座极片结构的磁性换能器
公开(公告)号：US20050007697A1
公开(公告)日：2005-01-13
申请号：US10912657
申请日：2004-08-04
申请人： Yimin Hsu , Hugo Santini , Neil Smith , Mason Williams
发明人： Yimin Hsu , Hugo Santini , Neil Smith , Mason Williams
IPC分类号： G11B5/31 , G11B5/147
CPC分类号： G11B5/3116 , G11B5/3113 , G11B5/313
摘要： A magnetic transducer with a write head with one or more coil layers and a pedestal pole piece on P1 is disclosed. In one embodiment the first and second coils and the P1 pedestal are formed on essentially planarized surfaces. The P1 pedestal defines the zero throat height (ZTH) with a 90 degree apex angle which cuts down flux leakage and improves efficiency. The first and second coils are disposed on opposite sides of the gap layer. The write head preferably has upper and lower back flux closure pieces in contact with the pole pieces to complete the back of the yoke. Various combinations of these features allow heads according to the invention to be made with a very short yoke with resulting improved efficiency. In alternative embodiments the coil below the gap layer may be omitted and/or an additional coil above the gap layer may be added.
摘要翻译：公开了一种具有一个或多个线圈层的写头和P1上的基座极片的磁换能器。在一个实施例中，第一和第二线圈和P1基座形成在基本平坦的表面上。 P1基座定义零喉高度（ZTH），90度顶角可以减少漏磁，提高效率。第一和第二线圈设置在间隙层的相对侧上。写头优选地具有与极片接触的上下磁通闭合件，以完成磁轭的后部。这些特征的各种组合使得根据本发明的头部具有非常短的轭，从而提高效率。在替代实施例中，间隙层下面的线圈可以被省略和/或可以添加间隙层上方的附加线圈。

10. 发明申请

US20060285257A1 Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio 失效
标题翻译：磁记录磁盘驱动器，具有高交叉磁道分辨率的读头和低比特宽比的磁盘
公开(公告)号：US20060285257A1
公开(公告)日：2006-12-21
申请号：US11158444
申请日：2005-06-21
申请人： Thomas Albrecht , Robert Fontana , Ching Tsang , Mason Williams , Bruce Wilson
发明人： Thomas Albrecht , Robert Fontana , Ching Tsang , Mason Williams , Bruce Wilson
IPC分类号： G11B5/33
CPC分类号： G11B5/3909 , B82Y10/00 , G11B5/3903 , G11B5/743 , G11B5/855 , G11B2005/3996
摘要： A continuous-media or patterned-media disk drive with a low ratio of linear bit density in bits per inch (BPI) in the along-the-track direction to track density in tracks per inch (TPI) in the cross-track direction has a magnetoresistive read head with high cross-track spatial resolution. The read head is located between two magnetic shields, with the shields and read head formed on a side surface of the head carrier perpendicular to the carrier's disk-facing surface. The carrier is supported by the disk drive actuator with the side surface of the carrier oriented generally parallel to the data tracks. In this arrangement the high-spatial-resolution direction of the read head (the transverse direction perpendicular to the side surface on which the head is formed) is in the radial or cross-track direction.
摘要翻译：在轨道方向上沿线方向的线性位密度（以比特/英寸（BPI））为单位的跟踪密度（以每英里轨道（TPI）为单位）的连续介质或图形媒体盘驱动器，具有高交叉轨道空间分辨率的磁阻读头。读取头位于两个磁屏蔽之间，其中屏蔽和读取头形成在头托架的垂直于托架面向盘的表面的侧表面上。载体由磁盘驱动器致动器支撑，其中载体的侧表面大致平行于数据轨道。在这种布置中，读取头的高空间分辨率方向（垂直于形成头部的侧面的横向方向）处于径向或横向方向。

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