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11. 发明授权

US09013836B1 Method and system for providing an antiferromagnetically coupled return pole 有权
标题翻译：提供反铁磁耦合返回极的方法和系统
公开(公告)号：US09013836B1
公开(公告)日：2015-04-21
申请号：US13894281
申请日：2013-05-14
申请人： Western Digital (Fremont), LLC
发明人： Feng Liu , Daniele Mauri
IPC分类号： G11B5/127 , G11B5/147 , G11B5/84
CPC分类号： G11B5/147 , G11B5/115 , G11B5/1278 , G11B5/3146 , G11B5/3967
摘要： A method and system provide a magnetic head having an air-bearing surface (ABS). The magnetic head includes a read transducer and a write transducer. The read transducer includes a first shield and a read sensor. The write transducer includes a main pole, at least one coil for energizing the main pole and a return pole between the read sensor and the main pole. The return pole includes an antiparallel coupling (AC) pole structure. The AC pole structure includes a plurality of ferromagnetic layers interleaved with at least one nonmagnetic layer. The ferromagnetic layers and the nonmagnetic spacer layer(s) are substantially parallel. The ferromagnetic layers and the nonmagnetic spacer layer(s) are substantially perpendicular to the ABS. The magnetic moment of each of the ferromagnetic layers is aligned antiparallel with the magnetic moment of a nearest neighbor of the ferromagnetic layers.
摘要翻译：一种方法和系统提供具有空气轴承表面（ABS）的磁头。磁头包括读换能器和写换能器。读取换能器包括第一屏蔽和读取传感器。写入传感器包括主极，用于激励主极的至少一个线圈和读取传感器与主极之间的返回极。返回极包括反平行耦合（AC）极结构。 AC极结构包括与至少一个非磁性层交错的多个铁磁层。铁磁层和非磁性间隔层基本平行。铁磁层和非磁性间隔层基本上垂直于ABS。每个铁磁层的磁矩与铁磁层最近邻的磁矩反平行排列。

12. 发明申请

US20150062735A1 DUAL READER STRUCTURE 有权
标题翻译：双读结构
公开(公告)号：US20150062735A1
公开(公告)日：2015-03-05
申请号：US14014597
申请日：2013-08-30
申请人： Seagate Technology LLC
发明人： Victor Boris Sapozhnikov , Harry Edelman , Mohammed Sharia Ullah Patwari
IPC分类号： G11B5/115
CPC分类号： G11B5/3948 , G11B5/115 , G11B5/3909 , G11B5/3912 , G11B5/3951 , G11B5/3954 , G11B5/398 , G11B5/4886 , G11B2005/3996
摘要： Implementations described and claimed herein provide a stacked dual reader with a bottom sensor stack and a top sensor stack wherein the bottom sensor stack and the top sensor stack are mirrored along a down-track direction.
摘要翻译：本文描述和要求保护的实施例提供了具有底部传感器堆叠和顶部传感器堆叠的堆叠式双重读取器，其中底部传感器堆叠和顶部传感器堆叠沿着下游方向被镜像。

13. 发明授权

US08908333B1 Shield designed for middle shields in a multiple sensor array 有权
标题翻译：屏蔽设计用于多个传感器阵列中的中间屏蔽
公开(公告)号：US08908333B1
公开(公告)日：2014-12-09
申请号：US14045022
申请日：2013-10-03
申请人： Western Digital (Fremont), LLC
发明人： Steven C. Rudy , Shaoping Li , Gerardo A. Bertero , Michael L. Mallary , Donghong Li , Yingbo Zhang
IPC分类号： G11B5/33 , G11B5/127 , G11B5/115
CPC分类号： G11B5/115 , G11B5/29 , G11B5/3912 , G11B5/4886 , G11B5/4976
摘要： A method and system provide a magnetic transducer having an air-bearing surface (ABS) and including first and second read sensors and a shield. The shield is in a down track direction from the first read sensor and between the first and second read sensors. The shield includes a first shield layer, a second shield layer and an insulating layer between the first and second shield layers. The first shield layer is between the first read sensor and the second shield layer. The second shield layer is between the first shield layer and the second read sensor. The first shield layer has a first footprint. The second shield layer has a second footprint. The second shield layer overlaps the first shield layer in the down track direction. The overlap is not more than fifty percent of the first footprint and not more than fifty percent of the second footprint.
摘要翻译：方法和系统提供具有空气轴承表面（ABS）并且包括第一和第二读取传感器和屏蔽件的磁换能器。屏蔽沿着第一读取传感器的向下方向并且在第一和第二读取传感器之间。屏蔽包括第一屏蔽层，第二屏蔽层和第一屏蔽层与第二屏蔽层之间的绝缘层。第一屏蔽层位于第一读取传感器和第二屏蔽层之间。第二屏蔽层位于第一屏蔽层和第二读取传感器之间。第一屏蔽层具有第一覆盖区。第二屏蔽层具有第二覆盖区。第二屏蔽层沿下行方向与第一屏蔽层重叠。重叠不超过第一个足迹的百分之五十，而不超过第二个足迹的百分之五十。

14. 发明授权

US07773347B2 Electrostatic protection for a magnetic tape head having multiple MR read elements 有权
标题翻译：具有多个MR读取元件的磁带头的静电保护
公开(公告)号：US07773347B2
公开(公告)日：2010-08-10
申请号：US11723073
申请日：2007-03-16
申请人： Kazuhiko Maejima , Hiroshi Kamiyama , Tomonaga Nishikawa
发明人： Kazuhiko Maejima , Hiroshi Kamiyama , Tomonaga Nishikawa
IPC分类号： G11B5/39 , G11B5/29 , G11B5/40
CPC分类号： G11B5/3958 , G11B5/115 , G11B5/3912 , G11B5/40
摘要： A thin-film magnetic head has a plurality of MR read head elements. Each MR read head element includes shield layers electrically insulated from the ground. An electrical resistor layer is electrically connected between the shield layer of one of the plurality of MR read head elements and the shield layer of the other one of the plurality of MR read head elements.
摘要翻译：薄膜磁头具有多个MR读取头元件。每个MR读头元件包括与地电隔离的屏蔽层。电阻层电连接在多个MR读取头元件中的一个的屏蔽层和多个MR读取头元件中的另一个的屏蔽层之间。

15. 发明授权

US07652853B2 Thin shield structure for reduced protrusion in a magnetoresistive head 失效
标题翻译：薄屏蔽结构，用于在磁阻头中减少突起
公开(公告)号：US07652853B2
公开(公告)日：2010-01-26
申请号：US11191767
申请日：2005-07-28
申请人： Gity Samadi Hosseinali , Vladimir Nikitin , Robert Langland Smith
发明人： Gity Samadi Hosseinali , Vladimir Nikitin , Robert Langland Smith
IPC分类号： G11B5/33
CPC分类号： G11B5/3116 , G11B5/115 , G11B5/3136 , G11B5/3912 , G11B5/3967
摘要： A magnetic data recording head having reduced thermally induced shield (pole tip) protrusion. The head includes a magnetoresistive sensor sandwiched between first and second shield. The shields have a substantially reduced thickness. The distance between the shields defines a gap (G) and the shields each have a thickness (ST) such that the ratio ST/G is greater than 2, but less than 50. More preferably the ratio ST/G is greater than 2, but less than 20, and yet more preferably, the ratio ST/G is greater than 2 and less than 10.
摘要翻译：具有减少的热感应屏蔽（极尖）突起的磁数据记录头。头包括夹在第一和第二屏蔽之间的磁阻传感器。屏蔽件具有大大减小的厚度。屏蔽之间的距离限定了间隙（G），并且屏蔽件各自具有厚度（ST），使得比率ST / G大于2但小于50.更优选地，比率ST / G大于2，但小于20，还更优选地，比率ST / G大于2且小于10。

16. 发明授权

US07325296B2 Method of fabricating a magnetic head 失效
标题翻译：制造磁头的方法
公开(公告)号：US07325296B2
公开(公告)日：2008-02-05
申请号：US11133625
申请日：2005-05-19
申请人： Robert Glenn Biskeborn
发明人： Robert Glenn Biskeborn
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3903 , G11B5/012 , G11B5/10 , G11B5/102 , G11B5/11 , G11B5/112 , G11B5/115 , G11B5/3103 , G11B5/3106 , G11B5/3109 , G11B5/3153 , G11B5/3163 , G11B5/332 , G11B5/40 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044
摘要： A magnetic head having a magnetic shield and/or pole layer that is fabricated as a plurality of laminated layers, in which each layer includes a sublayer thickness of Fe(N) and a sublayer thickness of NiFe(N), and where the relative thickness of these two sublayers is graduated. Particularly, the initially deposited laminations include sublayers of NiFe(N) having a thickness that is substantially greater than the thickness of the Fe(N) sublayers, whereas the finally deposited laminations include sublayers having an Fe(N) thickness that is substantially greater than the thickness of the NiFe(N) sublayers.
摘要翻译：一种磁头，其具有被制造为多层叠层的磁屏蔽和/或极层，其中每层包括Fe（N）的亚层厚度和NiFe（N）的子层厚度，并且其中相对厚度的这两个子层次是毕业的。特别地，初始沉积的叠层包括具有基本上大于Fe（N）层的厚度的厚度的NiFe（N）的子层，而最终沉积的叠层包括Fe（N）厚度基本上大于 NiFe（N）层的厚度。

17. 发明申请

US20080014467A1 Thin film magnetic head 有权
标题翻译：薄膜磁头
公开(公告)号：US20080014467A1
公开(公告)日：2008-01-17
申请号：US11787097
申请日：2007-04-12
申请人： Takayoshi Ohtsu , Nobumasa Nishiyama
发明人： Takayoshi Ohtsu , Nobumasa Nishiyama
IPC分类号： G11B5/39
CPC分类号： G11B5/3136 , B82Y10/00 , B82Y25/00 , G11B5/115 , G11B5/3909 , G11B5/3912 , G11B5/3967 , G11B5/6005 , G11B5/6064 , Y10T428/1136
摘要： For a Tunneling Magnetoresistive (TMR) element, an electrode is used as a magnetic shield or vice versa. This can pose a problem in that noise from a heater source or electromagnetic induction has a direct influence on the TMR element, namely, on a read signal. According to one embodiment of the present invention, however, a thin film head portion has an insulating film, a heater, an electromagnetic shield, a read element, and a write element laminated in this order from the side of a slider. Insulating films isolate the constituent elements above from each other, and a protection film covers the group mentioned above. The heater is a thin film resistive element made of NiCr or the like, and is disposed above the insulating film. The electromagnetic shield is a magnetic film made of permalloy or the like, and covers the heater. The read element comprises a lower shield and electrode, a TMR element, and an upper shield and electrode. The write element comprises a lower magnetic pole piece, an upper magnetic pole piece, and a coil formed therebetween. The thin film head portion is formed with a common terminal.
摘要翻译：对于隧道磁阻（TMR）元件，电极用作磁屏蔽，反之亦然。这可能引起来自加热器源或电磁感应的噪声对TMR元件的直接影响，即读取信号的问题。然而，根据本发明的一个实施例，薄膜头部分具有从滑块的侧面依次层叠的绝缘膜，加热器，电磁屏蔽，读取元件和写入元件。绝缘膜将上述构成元件彼此隔离，并且保护膜覆盖上述组。加热器是由NiCr等制成的薄膜电阻元件，并且设置在绝缘膜的上方。电磁屏蔽是由坡莫合金等制成的磁膜，并覆盖加热器。读取元件包括下屏蔽和电极，TMR元件，以及上屏蔽和电极。写元件包括下磁极片，上磁极片和在它们之间形成的线圈。薄膜头部形成有公共端子。

18. 发明授权

US07207099B2 Method of manufacturing thin-film magnetic head having a magnetism intercepting layer provided between read head and write head 失效
标题翻译：制造具有设置在读头和写头之间的磁截取层的薄膜磁头的方法
公开(公告)号：US07207099B2
公开(公告)日：2007-04-24
申请号：US11057183
申请日：2005-02-15
申请人： Atsushi Yamaguchi , Shigeru Shoji
发明人： Atsushi Yamaguchi , Shigeru Shoji
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3967 , G11B5/11 , G11B5/112 , G11B5/115 , G11B5/3133 , Y10T29/49021 , Y10T29/49044 , Y10T29/49048 , Y10T29/49052
摘要： A thin-film magnetic head comprises a read head and a write head. The read head and the write head are placed such that a top shield layer of the read head and a bottom pole layer of the write head are opposed to each other. A magnetism intercepting layer is provided between the top shield layer and the bottom pole layer. The magnetism intercepting layer is made of a nonmagnetic metal material that is capable of being formed through plating, such as platinum. The top shield layer, the magnetism intercepting layer and the bottom pole layer are consecutively formed through plating.
摘要翻译：薄膜磁头包括读取头和写入头。读头和写头被放置成使得读头的顶屏蔽层和写头的底极层彼此相对。在上屏蔽层和底极层之间设置有磁截取层。磁截止层由能够通过电镀形成的非磁性金属材料制成，例如铂。顶层屏蔽层，磁截取层和底极层通过电镀连续形成。

19. 发明授权

US06930863B2 Graded laminated thin film poles and shields for magnetic heads 失效
标题翻译：分级层压薄膜极和磁头屏蔽
公开(公告)号：US06930863B2
公开(公告)日：2005-08-16
申请号：US10340327
申请日：2003-01-10
申请人： Robert Glenn Biskeborn
发明人： Robert Glenn Biskeborn
IPC分类号： G11B5/012 , G11B5/10 , G11B5/11 , G11B5/115 , G11B5/31 , G11B5/33 , G11B5/39 , G11B5/40
CPC分类号： G11B5/3903 , G11B5/012 , G11B5/10 , G11B5/102 , G11B5/11 , G11B5/112 , G11B5/115 , G11B5/3103 , G11B5/3106 , G11B5/3109 , G11B5/3153 , G11B5/3163 , G11B5/332 , G11B5/40 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044
摘要： A magnetic head having a magnetic shield and/or pole layer that is fabricated as a plurality of laminated layers, in which each layer includes a sublayer thickness of Fe(N) and a sublayer thickness of NiFe(N), and where the relative thickness of these two sublayers is graduated. Particularly, the initially deposited laminations include sublayers of NiFe(N) having a thickness that is substantially greater than the thickness of the Fe(N) sublayers, whereas the finally deposited laminations include sublayers having an Fe(N) thickness that is substantially greater than the thickness of the NiFe(N) sublayers.
摘要翻译：一种磁头，其具有被制造为多层叠层的磁屏蔽和/或极层，其中每层包括Fe（N）的亚层厚度和NiFe（N）的子层厚度，并且其中相对厚度的这两个子层次是毕业的。特别地，初始沉积的叠层包括具有基本上大于Fe（N）层的厚度的厚度的NiFe（N）的子层，而最终沉积的叠层包括Fe（N）厚度基本上大于 NiFe（N）层的厚度。

20. 发明授权

US06631052B1 Head interconnect with support material carbonized shunt 失效
标题翻译：头部互连与支撑材料碳化分流
公开(公告)号：US06631052B1
公开(公告)日：2003-10-07
申请号：US09372283
申请日：1999-08-11
申请人： Mark T. Girard , Ryan A. Jurgenson
发明人： Mark T. Girard , Ryan A. Jurgenson
IPC分类号： G11B548
CPC分类号： G11B5/112 , G11B5/11 , G11B5/115 , G11B5/40 , H05K1/0259 , H05K1/0393 , H05K1/167 , H05K2201/0323 , H05K2203/107 , H05K2203/1136
摘要： The present invention provides a method for the creation and removal of shunts for the prevention of ESD/EOS damage to electrical components. In one embodiment of the present invention, the conductive pathway is provided and removed by exposing the interconnect's carbonizable and ablatable substrate to a radiant energy source such as a laser beam. The present invention also provides for interconnects that include at least two conductive wires or leads engaged on at least one surface by a carbonizable and ablatable material. The conductive wires may each include a branched dead end lead portion interleaved with the branched dead end lead portion of the other. Alternatively, the conductive wires may extend in close proximity to each other in a curved or sinuous or serpentine or backtracking pattern. An interconnect in accord with the present invention may include a substrate substantially supporting the conductive wires except at predetermined locations or proposed shunt sites wherein there is at least one through hole in the substrate.
摘要翻译：本发明提供了一种用于创建和去除分流器以防止对电气部件的ESD / EOS损伤的方法。在本发明的一个实施例中，通过将互连的可碳化和可消融衬底暴露于诸如激光束的辐射能量源来提供和去除导电通路。本发明还提供了包括通过可碳化和可烧蚀材料在至少一个表面上接合的至少两个导电线或引线的互连。导线可以各自包括与另一个的分支死端引线部分交错的分支死端引线部分。或者，导线可以以弯曲或弯曲或蛇形或回溯模式彼此靠近地延伸。根据本发明的互连可以包括基本上支撑除了在基板中存在至少一个通孔的预定位置或所提供的分流位置处的导电线的基板。

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