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1. 发明授权

US06693769B2 High data rate write head 有权
公开(公告)号：US06693769B2
公开(公告)日：2004-02-17
申请号：US09884608
申请日：2001-06-18
申请人： Yimin Hsu , Hugo Alberto Emilio Santini , Neil Smith , Mason Lamar Williams
发明人： Yimin Hsu , Hugo Alberto Emilio Santini , Neil Smith , Mason Lamar Williams
IPC分类号： G11B5147
CPC分类号： G11B5/3136 , G11B5/3116 , G11B5/313 , Y10T29/49044
摘要： A magnetic head assembly includes first and second pole pieces and first and second coil layers wherein the second pole piece has a ferromagnetic pole tip which forms a portion of an air bearing surface and defines a track width of a write head. A write gap layer is located between the first pole piece and the pole tip. A dielectric first insulation layer interfaces first and second side surfaces of the pole tip and is located between the first and second coil layers. The second pole piece has a ferromagnetic second pole piece structure which is magnetically connected to each of the pole tip and the first pole piece and extends across the second coil layer. In a first embodiment the second pole piece structure is a single layer and in a second embodiment the second pole piece structure has front and back components with a flat laminated second pole piece yoke layer located therebetween.

2. 发明授权

US06952326B2 High data rate write head 失效
标题翻译：高数据率写头
公开(公告)号：US06952326B2
公开(公告)日：2005-10-04
申请号：US10611627
申请日：2003-06-30
申请人： Yimin Hsu , Hugo Alberto Emilio Santini , Neil Smith , Mason Lamar Williams
发明人： Yimin Hsu , Hugo Alberto Emilio Santini , Neil Smith , Mason Lamar Williams
IPC分类号： G11B5/31 , G11B5/127
CPC分类号： G11B5/3136 , G11B5/3116 , G11B5/313 , Y10T29/49044
摘要： A magnetic head assembly includes first and second pole pieces and first and second coil layers wherein the second pole piece has a ferromagnetic pole tip which forms a portion of an air bearing surface and defines a track width of a write head. A write gap layer is located between the first pole piece and the pole tip. A dielectric first insulation layer interfaces first and second side surfaces of the pole tip and is located between the first and second coil layers. The second pole piece has a ferromagnetic second pole piece structure which is magnetically connected to each of the pole tip and the first pole piece and extends across the second coil layer. In a first embodiment the second pole piece structure is a single layer and in a second embodiment the second pole piece structure has front and back components with a flat laminated second pole piece yoke layer located therebetween.
摘要翻译：磁头组件包括第一和第二极片以及第一和第二线圈层，其中第二极靴具有形成空气轴承表面的一部分并限定写入头的轨道宽度的铁磁极尖端。写间隙层位于第一极片和极尖之间。电介质第一绝缘层与极尖的第一和第二侧表面接合并位于第一和第二线圈层之间。第二极片具有铁磁第二极片结构，其磁极连接到极尖和第一极靴中的每一个并且延伸穿过第二线圈层。在第一实施例中，第二极靴结构是单层，在第二实施例中，第二极靴结构具有前后组件，其间具有平坦的层叠的第二极片轭层。

3. 发明授权

US5896249A Disk drive with identical top and bottom heads having three side-by-side elements and a common terminal pad 失效
标题翻译：具有相同顶部和底部头部的盘驱动器具有三个并排元件和公共端子垫
公开(公告)号：US5896249A
公开(公告)日：1999-04-20
申请号：US138836
申请日：1998-08-24
申请人： Robert Edward Fontana, Jr. , Steven Robert Hetzler , Hugo Alberto Emilio Santini , Mason Lamar Williams
发明人： Robert Edward Fontana, Jr. , Steven Robert Hetzler , Hugo Alberto Emilio Santini , Mason Lamar Williams
IPC分类号： G11B5/31 , G11B5/39 , G11B5/48 , G11B21/00 , G11B5/60
CPC分类号： G11B5/3967 , G11B21/00 , G11B5/3103 , G11B5/4813 , G11B5/4886 , G11B5/3166 , G11B5/3948
摘要： A magnetic recording disk drive uses side-by-side read/write heads formed on head carriers that are identical for both top and bottom disk surfaces. Thus, a common head carrier functions as a single manufacturable part usable for both top and bottom disk surfaces. The common head carrier has a trailing end with a pattern of components formed on it that includes three side-by-side transducers (two read elements equally spaced about a center write element) and five terminal pads, one of which is a common pad, and all of the electrical connectors interconnecting the five terminal pads with the three transducers. There are only three terminal pads for the two read elements, with one of the read terminal pads being a common terminal pad that is electrically connected to both read elements. During assembly of the disk drive, the common carrier, when used as the top carrier, has a first read terminal pad and the common terminal pad connected to the leads on the suspension. When used as the bottom carrier, the second read terminal pad and the common terminal pad are connected to the leads on the suspension. Thus, only one carrier common to both top and bottom sides of the disk needs to be manufactured. The uniqueness of the top and bottom carriers is obtained by the wiring connection of the read terminal pads to the leads on the suspensions.
摘要翻译：磁记录盘驱动器使用形成在头托架上的并排读/写头，其对于顶盘和底盘表面是相同的。因此，公共的头托架用作可用于顶部和底部盘表面的单个可制造部件。公共头托架具有后端，其上形成有包括三个并排换能器（两个读取元件，围绕中心写入元件等间隔开）的部件图案，以及五个端子焊盘，其中一个是公共焊盘，并且所有电连接器将五个端子焊盘与三个换能器互连。两个读取元件只有三个端子焊盘，其中一个读取端子焊盘是与两个读取元件电连接的公共端子焊盘。在盘驱动器的组装期间，公共载体当用作顶部载体时，具有第一读取端子焊盘，并且公共端子焊盘连接到悬架上的引线。当用作底部载体时，第二读取端子焊盘和公共端子焊盘连接到悬架上的引线。因此，只需要制造一个与磁盘的顶面和底面共同的载体。顶部和底部载体的唯一性是通过将读取的端子焊盘连接到悬架上的引线而获得的。

4. 发明授权

US06757141B2 Perpendicular recording write head with a ferromagnetic shaping layer 失效
标题翻译：垂直记录写磁头与铁磁成型层
公开(公告)号：US06757141B2
公开(公告)日：2004-06-29
申请号：US10054553
申请日：2002-01-18
申请人： Hugo Alberto Emilio Santini , Mason Lamar Williams
发明人： Hugo Alberto Emilio Santini , Mason Lamar Williams
IPC分类号： G11B5127
CPC分类号： G11B5/6005 , G11B5/3163
摘要： A perpendicular recording head has a second pole piece which includes a bottom ferromagnetic shaping layer and a top ferromagnetic probe layer. Each of these layers has a flare point where the layers first commence to widen after the ABS with the flare point of the shaping layer being located between an air bearing surface (ABS) of the head and the flare point of the probe layer. Further, the probe layer has a probe at the ABS which has a decreasing width from its top to its bottom to provide a trapezoidal shape which minimizes side writing due to skew of the probe at outermost and innermost circular tracks of a rotating magnetic disk.
摘要翻译：垂直记录头具有包括底部铁磁成形层和顶部铁磁探针层的第二极片。这些层中的每一个都具有闪络点，其中层之后首先在ABS之后开始变宽，成形层的扩张点位于头部的空气支承表面（ABS）和探针层的扩张点之间。此外，探针层在ABS处具有探针，该探针从其顶部到底部具有减小的宽度，以提供梯形形状，其最小化由于探针在旋转磁盘的最外圆周轨迹和最内圆周轨道处的歪斜而造成的侧面写入。

5. 发明授权

US5798890A Disk drive with identical three-element, side-by-side heads on opposite disk surfaces 失效
标题翻译：磁盘驱动器，在相对的磁盘表面上具有相同的三元件并排磁头
公开(公告)号：US5798890A
公开(公告)日：1998-08-25
申请号：US811490
申请日：1997-03-05
申请人： Robert Edward Fontana, Jr. , Steven Robert Hetzler , Hugo Alberto Emilio Santini , Mason Lamar Williams
发明人： Robert Edward Fontana, Jr. , Steven Robert Hetzler , Hugo Alberto Emilio Santini , Mason Lamar Williams
IPC分类号： G11B5/31 , G11B5/39 , G11B5/48 , G11B21/00 , G11B5/60 , G11B21/21
CPC分类号： G11B5/3967 , G11B21/00 , G11B5/3103 , G11B5/4813 , G11B5/4886 , G11B5/3166 , G11B5/3948
摘要： A magnetic recording disk drive uses side-by-side read/write heads formed on head carriers that are substantially identical for both top and bottom disk surfaces. Thus, a common head carrier functions as a single manufacturable part usable for both top and bottom disk surfaces. The common head carrier has a trailing end with a pattern of components formed on it that includes three side-by-side transducers and sets of terminal pads. In the read/write/read side-by-side head arrangement, the first element is a center write element, such as an inductive coil, and the second and third elements are read elements, such as magnetoresistive read elements, that are generally equally spaced from the center write element. In common carriers to be used for the top disk surfaces, one of the read elements is electrically connected to the read/write channel of the disk drive, and in common carriers to be used for the bottom disk surfaces, the other read element on the common carrier is electrically connected to the read/write channel. The disk drive thus operates in cylinder mode with side-by-side heads using a common carrier for both top and bottom disk surfaces.
摘要翻译：磁记录盘驱动器使用形成在头托架上的并排读/写头，其对于顶盘和底盘表面基本相同。因此，公共的头托架用作可用于顶部和底部盘表面的单个可制造部件。公共头托架具有后端，其上形成有包括三个并排换能器和端子排组的部件图案。在读/写/读并排磁头布置中，第一元件是诸如感应线圈的中心写元件，并且第二和第三元件是读取元件，例如磁阻读取元件，其大致相等与中心写入元件间隔开。在用于顶部磁盘表面的公共载体中，读取元件中的一个电连接到磁盘驱动器的读取/写入通道，并且在用于底部磁盘表面的公共载体中，另一个读取元件公共载体电连接到读/写通道。因此，磁盘驱动器以圆柱模式并行地使用顶部和底部磁盘表面的公共载体。

6. 发明授权

US07009812B2 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：US07009812B2
公开(公告)日：2006-03-07
申请号：US10675046
申请日：2003-09-29
申请人： Yimin Hsu , Quang Le , Hin Pong Edward Lee , James Lamar Nix , Aron Pentek , Kurt Rubin , Neil Smith , Nian Xiang Sun , Walter Eugene Weresin , Mason Lamar Williams
发明人： Yimin Hsu , Quang Le , Hin Pong Edward Lee , James Lamar Nix , Aron Pentek , Kurt Rubin , Neil Smith , Nian Xiang Sun , Walter Eugene Weresin , Mason Lamar Williams
IPC分类号： G11B5/147
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取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。

7. 发明授权

US06259583B1 Laminated yoke head with a domain control element 失效
标题翻译：具有域控制元件的层叠轭头
公开(公告)号：US06259583B1
公开(公告)日：2001-07-10
申请号：US09154527
申请日：1998-09-16
申请人： Robert Edward Fontana, Jr. , Yimin Hsu , Prakash Kasiraj , Mason Lamar Williams
发明人： Robert Edward Fontana, Jr. , Yimin Hsu , Prakash Kasiraj , Mason Lamar Williams
IPC分类号： G11B5147
CPC分类号： G11B5/3153 , G11B5/3113 , G11B5/3156
摘要： The present invention is a magnetic head which has a preferably planar pole member having a yoke and a tip with a first planar pole P1 and a second planar pole P2 positioned above pole P1. The pole member is built up of two types of layers: a first type of layer with high magnetic permeability &mgr; and low anisotropy Hk, with the easy axis oriented substantially perpendicular to the flux propagation direction to ensure rapid response, and a second layer type which is non-magnetic. The magnetic head also has a domain control element whose magnetization in the vicinity of the pole tip P2 and in the absence of applied field is aligned along the length of the element so as to facilitate the conduction of flux between poles P1 and P2. The domain control element can be a non-laminated element made of a material with high saturation magnetization MS such as NiFe, Ni80Fe20, Ni45Fe55, NiFeCo, FeCo, CoZrNb, FeAlN and FeTaN and proper dimensioning of the element further increases the flux conduction efficiency.
摘要翻译：本发明是一种磁头，其具有优选的具有磁轭的平面磁极部件和具有位于磁极P1上方的第一平面磁极P1和第二平面磁极P2的末端。极构件由两种类型的层构成：具有高磁导率μm和低各向异性H k的第一类型的层，易轴定向为基本上垂直于磁通传播方向，以确保快速响应，以及第二层类型是非磁性的。磁头还具有域控制元件，其磁极尖端P2附近的磁化和不存在施加磁场的磁化沿着元件的长度排列，以便于磁极P1和P2之间的磁通传导。域控制元件可以是由诸如NiFe，Ni80Fe20，Ni45Fe55，NiFeCo，FeCo，CoZrNb，FeAlN和FeTaN的高饱和磁化MS的材料制成的非层叠元件，并且元件的适当尺寸进一步增加了通量传导效率。

8. 发明授权

US07196871B2 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：US07196871B2
公开(公告)日：2007-03-27
申请号：US10671639
申请日：2003-09-26
申请人： Yimin Hsu , Quang Le , Mason Lamar Williams
发明人： Yimin Hsu , Quang Le , Mason Lamar Williams
IPC分类号： G11B5/31 , G11B5/11
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.
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。

9. 发明授权

US07440230B2 Perpendicular recording head with floating-trailing shield extending around first and second sides of main pole piece 失效
标题翻译：垂直记录头，浮动后挡板延伸在主极片的第一和第二侧
公开(公告)号：US07440230B2
公开(公告)日：2008-10-21
申请号：US11708958
申请日：2007-02-20
申请人： Yimin Hsu , Quang Le , Mason Lamar Williams
发明人： Yimin Hsu , Quang Le , Mason Lamar Williams
IPC分类号： G11B5/31 , G11B5/11 , G11B5/39
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。

10. 发明授权

US07002775B2 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：US07002775B2
公开(公告)日：2006-02-21
申请号：US10676742
申请日：2003-09-30
申请人： Yimin Hsu , Quang Le , James Lamar Nix , Mason Lamar Williams
发明人： Yimin Hsu , Quang Le , James Lamar Nix , Mason Lamar Williams
IPC分类号： G11B5/147
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。

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