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公开(公告)号：US10121499B2
公开(公告)日：2018-11-06
申请号：US15618970
申请日：2017-06-09
Applicant: Seagate Technology LLC
Inventor： Sameh Hassan , Wonjoon Jung , Mark Kief , Marcus Ormston
Abstract: A read sensor that includes a free layer having a magnetization that changes according to an external magnetic field. The read sensor also includes an additional magnetic layer and a non-magnetic layer. The non-magnetic layer may include a corrugated surface facing the additional magnetic layer. The corrugated surface is configured to enhance uniaxial anisotropy in the read sensor.
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公开(公告)号：US09812157B1
公开(公告)日：2017-11-07
申请号：US15451084
申请日：2017-03-06
Applicant: Seagate Technology LLC
Inventor： Wonjoon Jung , Thomas Roy Boonstra , Sung-Hoon Gee , David A. Deen
CPC classification number: G11B5/39 , G11B5/3163 , G11B5/3912 , G11B5/398
Abstract: A lateral spin valve reader and fabrication method thereof. The method includes forming an injector, a detector and a common channel layer that extends from the injector to the detector. The method also includes forming a first channel layer between the common channel layer and at least one of the injector or the detector with the first channel layer in contact with the common channel layer, thereby providing an interface between the first channel layer and the common channel layer.
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公开(公告)号：US09240200B2
公开(公告)日：2016-01-19
申请号：US13687920
申请日：2012-11-28
Applicant: Seagate Technology LLC
Inventor： Mark William Covington , Victor Boris Sapozhnikov , Wonjoon Jung , Dimitar Velikov Demitrov , Dian Song , Taras Pohkil
CPC classification number: G11B5/3163 , G11B5/3906 , G11B5/3932 , G11B5/398
Abstract: A magnetic element may be configured with at least a magnetic stack having first and second magnetically free layers that each has a predetermined stripe height from an air bearing surface (ABS). The first and second magnetically free layers can respectively be configured with first and second uniaxial anisotropies that are crossed in relation to the ABS and angled in response to the predetermined stripe height.
Abstract translation: 磁性元件可以被构造成具有至少一个具有第一和第二磁性层的磁性堆叠，每个磁层具有从空气轴承表面（ABS）的预定条带高度。 第一和第二无磁性层可以分别配置有相对于ABS交叉的第一和第二单轴各向异性，并响应于预定条带高度成角度。
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公开(公告)号：US20140146419A1
公开(公告)日：2014-05-29
申请号：US13687920
申请日：2012-11-28
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Mark William Covington , Victor Boris Sapozhnikov , Wonjoon Jung , Dimitar Velikov Demitrov , Dian Song , Taras Pohkil
IPC: G11B5/31
CPC classification number: G11B5/3163 , G11B5/3906 , G11B5/3932 , G11B5/398
Abstract: A magnetic element may be configured with at least a magnetic stack having first and second magnetically free layers that each has a predetermined stripe height from an air bearing surface (ABS). The first and second magnetically free layers can respectively be configured with first and second uniaxial anisotropies that are crossed in relation to the ABS and angled in response to the predetermined stripe height.
Abstract translation: 磁性元件可以被构造成具有至少一个具有第一和第二磁性层的磁性堆叠，每个磁层具有从空气轴承表面（ABS）的预定条带高度。 第一和第二无磁性层可以分别配置有相对于ABS交叉的第一和第二单轴各向异性，并响应于预定条带高度成角度。
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公开(公告)号：US20180120387A1
公开(公告)日：2018-05-03
申请号：US15858401
申请日：2017-12-29
Applicant: Seagate Technology LLC
Inventor： Qing He , Wonjoon Jung , Mark William Covington , Mark Thomas Kief , Yonghua Chen
CPC classification number: G01R33/0052 , G01R33/093 , G01R33/098 , G11B5/23 , G11B5/232 , G11B5/3133 , G11B5/3143 , G11B5/3163 , Y10T29/49043 , Y10T29/49044
Abstract: A magnetic sensor comprising a first shield and a second shield and a sensor stack between the first and the second shield, the sensor stack having a plurality of layers wherein at least one layer is annealed using in-situ rapid thermal annealing. In one implementation of the magnetic sensor a seed layer is annealed using in-situ rapid thermal annealing. Alternatively, one of a barrier layer, an antiferromagnetic (AFM) layer, and a cap layer is annealed using in-situ rapid thermal annealing.
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Patent Agency Ranking
公开(公告)号：US20170278529A1
公开(公告)日：2017-09-28
申请号：US15618970
申请日：2017-06-09
Applicant: Seagate Technology LLC
Inventor： Sameh Hassan , Wonjoon Jung , Mark Kief , Marcus Ormston
CPC classification number: G11B5/3163 , G01R33/09 , G01R33/093 , G01R33/098 , G11B5/313 , G11B5/3906 , G11B5/3912 , G11B5/398 , H01L43/00
Abstract: A read sensor that includes a free layer having a magnetization that changes according to an external magnetic field. The read sensor also includes an additional magnetic layer and a non-magnetic layer. The non-magnetic layer may include a corrugated surface facing the additional magnetic layer. The corrugated surface is configured to enhance uniaxial anisotropy in the read sensor.
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公开(公告)号：US09679589B2
公开(公告)日：2017-06-13
申请号：US14851207
申请日：2015-09-11
Applicant: Seagate Technology LLC
Inventor： Sameh Hassan , Wonjoon Jung , Mark Kief , Marcus Ormston
CPC classification number: G11B5/3163 , G01R33/09 , G01R33/093 , G01R33/098 , G11B5/313 , G11B5/3906 , G11B5/3912 , G11B5/398 , H01L43/00
Abstract: A read sensor that includes a free layer having a magnetization that changes according to an external magnetic field. The read sensor also includes an additional magnetic layer and a non-magnetic layer. The non-magnetic layer may include a corrugated surface facing the additional magnetic layer. The corrugated surface is configured to enhance uniaxial anisotropy in the read sensor.
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公开(公告)号：US09218826B1
公开(公告)日：2015-12-22
申请号：US13968539
申请日：2013-08-16
Applicant: Seagate Technology LLC
Inventor： Qing He , Mark Covington , Wonjoon Jung
CPC classification number: G11B5/3909 , G01R33/098 , G11B5/3163 , G11B5/3906 , H01L43/08 , H01L43/12
Abstract: A data storage device may be constructed as a data reader in various embodiments with a magnetic stack that has a barrier layer disposed between first and second magnetically free layers. The magnetic stack may have a horizontally symmetrical configuration that provides negative exchange coupling between the magnetically free layers.
Abstract translation: 在各种实施例中，数据存储设备可以被构造为数据读取器，其中磁堆栈具有设置在第一和第二无磁层之间的阻挡层。 磁性堆叠可以具有水平对称的构造，其在无磁层之间提供负的交换耦合。
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公开(公告)号：US08670271B2
公开(公告)日：2014-03-11
申请号：US13857410
申请日：2013-04-05
Applicant: Seagate Technology LLC
Inventor： Yuankai Zheng , Zheng Gao , Wonjoon Jung , Xuebing Feng , Xiaohua Lou , Haiwen Xi
IPC: G11C11/15
CPC classification number: H01L43/02 , B82Y10/00 , B82Y25/00 , G11C11/161 , H01F10/3254 , H01F10/3263 , H01F10/3286 , H01F10/329 , H01F10/3295 , H01L43/08
Abstract: A magnetic tunnel junction having a ferromagnetic free layer and a ferromagnetic pinned reference layer, each having an out-of-plane magnetic anisotropy and an out-of-plane magnetization orientation, the ferromagnetic free layer switchable by spin torque. The magnetic tunnel junction includes a ferromagnetic assist layer proximate the free layer, the assist layer having a low magnetic anisotropy less than 700 Oe and positioned to apply a magnetic field on the free layer.
Abstract translation: 具有铁磁自由层和铁磁性固定参考层的磁性隧道结，每个具有面外磁各向异性和面外磁化取向，所述铁磁自由层可通过自旋扭矩切换。 磁性隧道结包括邻近自由层的铁磁性辅助层，辅助层具有小于700Oe的低磁各向异性，并定位成在自由层上施加磁场。
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公开(公告)号：US20170076743A1
公开(公告)日：2017-03-16
申请号：US14851207
申请日：2015-09-11
Applicant: Seagate Technology LLC
Inventor： Sameh Hassan , Wonjoon Jung , Mark Kief , Marcus Ormston
IPC: G11B5/31
CPC classification number: G11B5/3163 , G01R33/09 , G01R33/093 , G01R33/098 , G11B5/313 , G11B5/3906 , G11B5/3912 , G11B5/398 , H01L43/00
Abstract: A read sensor that includes a free layer having a magnetization that changes according to an external magnetic field. The read sensor also includes an additional magnetic layer and a non-magnetic layer. The non-magnetic layer may include a corrugated surface facing the additional magnetic layer. The corrugated surface is configured to enhance uniaxial anisotropy in the read sensor.
Abstract translation: 读取传感器，其包括具有根据外部磁场而变化的磁化的自由层。 读取传感器还包括附加的磁性层和非磁性层。 非磁性层可以包括面向附加磁性层的波纹状表面。 波纹表面被配置为增强读取传感器中的单轴各向异性。
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