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公开(公告)号：US09324342B2
公开(公告)日：2016-04-26
申请号：US14839489
申请日：2015-08-28
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 separated by a top mid-shield and a bottom mid-shield, and a pre-amplifier circuit comprising a top lead connected to the top mid-shield, configured to collect current flowing from the top mid-shield through the top sensor stack opposite a direction of current flowing from the bottom mid-shield to a bottom lead through the bottom sensor stack.
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由顶部中间屏蔽和底部中间屏蔽隔开的顶部传感器堆叠的堆叠双重读取器，以及包括顶部引线的前置放大器电路， 屏蔽件，被配置为收集从顶部中间屏蔽件流过顶部传感器堆叠的电流，该电流与从底部中间屏蔽件流过底部传感器堆叠的底部引线的电流方向相反。
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公开(公告)号：US09153252B2
公开(公告)日：2015-10-06
申请号：US14014597
申请日：2013-08-30
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.
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公开(公告)号：US09153251B2
公开(公告)日：2015-10-06
申请号：US14636967
申请日：2015-03-03
CPC分类号： G11B5/11 , G11B5/3912 , G11B5/3929 , G11B5/398
摘要： An apparatus comprising a base shield, a sensor stack, and a base seed layer separating the base shield from the sensor stack. The base seed layer has a base coupled seed section that is coupled with the base shield, and a base uncoupled seed section that is uncoupled with the base shield, wherein the base uncoupled seed section covers a base window surrounding the sensor stack.
摘要翻译： 一种装置，包括基础屏蔽，传感器堆叠和将基底屏蔽与传感器堆叠分离的基础种子层。 基种子层具有与基底屏蔽件耦合的基底耦合的种子部分，以及与基部屏蔽件分离的基部未耦合的种子部分，其中基部未耦合的种子部分覆盖围绕传感器堆叠的基部窗口。
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公开(公告)号：US09019664B2
公开(公告)日：2015-04-28
申请号：US13898210
申请日：2013-05-20
发明人： Dion Song , Dimitar Velikov Dimitrov , Victor Boris Sapozhnikov , Mohammed Sharia Ullah Patwari
CPC分类号： G11B5/3912 , G11B5/11
摘要： Implementations disclosed herein allow a signal detected by a magnetoresistive (MR) sensor to be improved by providing for one or more regions of reduced anisotropy proximal to a sensor stack within a shielding structure.
摘要翻译： 通过在屏蔽结构内提供靠近传感器堆叠的一个或多个具有减小的各向异性的区域，允许通过磁阻（MR）传感器检测到的信号得到改进。
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公开(公告)号：US08988832B2
公开(公告)日：2015-03-24
申请号：US13953936
申请日：2013-07-30
CPC分类号： G11B5/11 , G11B5/3929 , G11B5/398 , H01L43/02 , H01L43/08 , Y10T428/1193
摘要： Implementations disclosed herein allow a signal detected by a magnetoresistive (MR) sensor to be improved by providing for a region of reduced anisotropy within a synthetic antiferromagnetic (SAF) shield. The SAF shield includes first and second layers of ferromagnetic material separated by a coupling spacer layer. A distance between the first and second layers of ferromagnetic material is greater in a region proximal to the sensor stack than in a region away from the sensor stack.
摘要翻译： 通过在合成的反铁磁（SAF）屏蔽内提供减小各向异性的区域，可以改善由磁阻（MR）传感器检测到的信号。 SAF屏蔽包括由耦合间隔层隔开的第一和第二层铁磁材料层。 铁氧体材料的第一和第二层之间的距离在靠近传感器堆叠的区域中大于远离传感器堆叠的区域。
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公开(公告)号：US20140334042A1
公开(公告)日：2014-11-13
申请号：US14445916
申请日：2014-07-29
IPC分类号： G11B5/11
CPC分类号： G11B5/11 , G11B5/3912 , G11B5/3929 , G11B5/398
摘要： An apparatus comprising a base shield and a sensor stack, wherein the base shield is separated from the sensor stack via a first soft magnetic layer that is magnetically decoupled form the base shield.
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公开(公告)号：US09886974B2
公开(公告)日：2018-02-06
申请号：US14927696
申请日：2015-10-30
CPC分类号： G11B5/3912 , G11B5/112 , G11B5/1475 , G11B5/3932 , G11B5/398 , G11B5/6082
摘要： A reader having a bearing surface, a free layer, and a free layer biasing structure. The free layer biasing structure includes at least one side shield that applies a first bias field level to a front portion of the free layer that is nearest to the bearing surface and applies a second bias field level to a rear portion of the free layer that is farthest from the bearing surface. The second bias field level is greater than the first bias field level.
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公开(公告)号：US09269381B1
公开(公告)日：2016-02-23
申请号：US14486827
申请日：2014-09-15
IPC分类号： G11B5/39
CPC分类号： G11B5/3912 , G11B5/3932 , G11B5/398
摘要： A reader sensor having a composite shield and a sensor stack. The composite shield includes a high magnetic moment layer having a magnetic moment greater than 1.0 T, a low magnetic moment layer, and a spacer therebetween. The high magnetic moment layer is closer to the stack than the low magnetic moment layer. The high magnetic moment layer may be a single layer or have a plurality of layers.
摘要翻译： 具有复合屏蔽和传感器叠层的读取器传感器。 复合屏蔽包括具有大于1.0T的磁矩的高磁矩层，低磁矩层以及间隔件。 高磁矩层比低磁矩层更靠近堆叠。 高磁矩层可以是单层或多层。
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公开(公告)号：US09251815B2
公开(公告)日：2016-02-02
申请号：US13930150
申请日：2013-06-28
发明人： Eric W. Singleton , Konstantin Nikolaev , Liwen Tan , Jae-Young Yi , Victor Boris Sapozhnikov , Mohammed Sharia Ullah Patwari
IPC分类号： G11B5/39
CPC分类号： G11B5/3912 , G11B5/3909 , G11B5/3929 , G11B2005/3996
摘要： An apparatus disclosed herein includes a sensor stack including a first layer and an AFM stabilized bottom shield in proximity to the first layer, wherein the AFM stabilized bottom shield is magnetically coupled to the first layer. The apparatus reduces shield-to-shield spacing. The pinned layer of the bottom shield and a pinned layer of the sensor stack are stabilized using the AFM layer in the bottom shield. In one implementation, the bottom shield is made of the SAF structure, with the top layer of the structure adjacent to a pinned layer in the sensor stack.
摘要翻译： 本文公开的装置包括传感器堆叠，其包括靠近第一层的第一层和AFM稳定的底部屏蔽，其中AFM稳定的底部屏蔽物磁耦合到第一层。 该设备减少屏蔽间隔。 使用底部屏蔽中的AFM层来稳定底部屏蔽的固定层和传感器堆叠的固定层。 在一个实施方案中，底部屏蔽由SAF结构制成，结构的顶层与传感器堆叠中的固定层相邻。
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公开(公告)号：US09190082B2
公开(公告)日：2015-11-17
申请号：US14012819
申请日：2013-08-28
IPC分类号： G11B5/39
CPC分类号： G11B5/3951
摘要： Implementations described and claimed herein provide a dual reader wherein a bottom shield is attached to side shields.
摘要翻译： 在此描述和要求保护的实施例提供一种双重阅读器，其中底部屏蔽件附接到侧面屏蔽件。
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