公开(公告)号：US20150103438A1

公开(公告)日：2015-04-16

申请号：US14576982

申请日：2014-12-19

Applicant: Seagate Technology LLC

Inventor： Zhengqi Lu ,  Ann Lynch ,  Daniel Hassett ,  Jiansheng Xu ,  Jae-Young Yi ,  Liwen Tan ,  Eric W. Singleton

IPC: G11B5/23

CPC classification number: G11B5/23 ,  G01R33/093 ,  G11B5/3912 ,  G11B5/3929 ,  H01F10/3204

Abstract: A magnetic element capable of reading data may generally be configured at least with a magnetic seed lamination disposed between a data reader stack and a magnetic shield. The magnetic seed lamination may be constructed at least with one magnetic layer coupled to the bottom shield and at least one non-magnetic layer decoupling the data reader stack from the at least one magnetic layer.

Abstract translation: 能够读取数据的磁性元件通常可以至少配置在数据读取器堆叠和磁性屏蔽之间的磁性种子​​叠层。 磁性种子层压可以至少构成一个耦合到底部屏蔽的磁性层和至少一个非磁性层使数据读取器堆叠与至少一个磁性层分离。

公开(公告)号：US09454979B1

公开(公告)日：2016-09-27

申请号：US14940360

申请日：2015-11-13

Applicant: Seagate Technology LLC

Inventor： Zhengqi Lu ,  Daniel Hassett ,  Paula McElhinney ,  Jiansheng Xu

IPC: G11B5/39 ,  G11B5/33

CPC classification number: G11B5/3912 ,  G11B5/332 ,  H01F10/3272 ,  H01L43/08 ,  H01L43/10

Abstract: A reader sensor comprising a sensor stack and a composite top shield. The composite top shield includes a bulk shield portion and a SAF portion, the SAF portion comprising a top magnetic layered structure and a bottom magnetic layered structure with a non-magnetic layer therebetween. Each of the magnetic layered structures has at least one soft magnetic material layer bounded by layers comprising magnetic material having a magnetic moment of at least 1.4 T.

Abstract translation: 一种读取器传感器，包括传感器堆叠和复合顶部屏蔽。 复合顶部屏蔽包括体屏蔽部分和SAF部分，SAF部分包括顶部磁性分层结构和其间具有非磁性层的底部磁性层状结构。 每个磁性分层结构具有至少一个软磁材料层，该层由包括至少1.4T的磁矩的磁性材料的层限定。

公开(公告)号：US08867175B1

公开(公告)日：2014-10-21

申请号：US13889841

申请日：2013-05-08

Applicant: Seagate Technology LLC

Inventor： Zhengqi Lu ,  Daniel Hassett ,  Jiansheng Xu

IPC: G11B5/127 ,  G11B5/11

CPC classification number: G11B5/11 ,  G01R33/0076 ,  G01R33/025 ,  G01R33/093 ,  G11B5/3912 ,  H01L43/08 ,  H01L43/10

Abstract: A magnetic element may generally be configured as a read head with at least a magnetic stack that contacts at least one magnetic shield. The magnetic shield can be positioned on top of a base lamination and have at least a predetermined anisotropy and magnetic coercivity corresponding to the base lamination.

Abstract translation: 磁性元件通常可被配置为至少具有至少一个磁性屏蔽层的磁性堆叠的读取头。 磁屏蔽可以位于基底层叠的顶部上，并且具有至少相应于基底层压的预定的各向异性和磁矫顽力。

公开(公告)号：US20150243307A1

公开(公告)日：2015-08-27

申请号：US14192388

申请日：2014-02-27

Applicant: Seagate Technology LLC

Inventor： Zhengqi Lu ,  Daniel Hassett ,  Paula McElhinney ,  Jiansheng Xu

IPC: G11B5/39

CPC classification number: G11B5/3912 ,  G11B5/115 ,  G11B5/3909 ,  G11B2005/3996

Abstract: In accordance with one implementation of the described technology, an apparatus comprises a sensor structure including a top shield which includes a top shield synthetic antiferromagnetic layer and a bottom shield including a bottom shield synthetic antiferromagnetic layer, wherein the bottom synthetic antiferromagnetic shield layer acts as a seed layer structure.

Abstract translation: 根据所述技术的一个实施方案，一种装置包括传感器结构，该传感器结构包括顶盖，其包括顶盖合成反铁磁层和包括底屏蔽合成反铁磁层的底屏蔽，其中底部合成反铁磁屏蔽层用作 种子层结构。

公开(公告)号：US20150116868A1

公开(公告)日：2015-04-30

申请号：US14067456

申请日：2013-10-30

Applicant: Seagate Technology LLC

Inventor： Zhengqi Lu ,  Daniel Hassett ,  Paula McElhinney ,  Jiansheng Xu

IPC: G11B5/11 ,  G11B5/33

CPC classification number: G11B5/11 ,  G11B5/33 ,  G11B5/3909 ,  G11B5/3912 ,  G11B2005/3996

Abstract: A magneto-resistive (MR) sensor may include a variety of individual functional layers whereby an electrical resistance throughout the layers of the sensor stack varies according to the polarity of a pinned layer within the sensor stack. A layered synthetic anti-ferromagnetic (SAF) upper shield of the MR sensor includes an upper SAF layer and a lower SAF layer separated by a shield anti-ferromagnetic (AFM) layer. The lower SAF layer is in contact with a side shield of the MR sensor, which provides a side shield biasing field to the MR sensor. The upper SAF layer separates the lower SAF layer from a top shield and/or domain control structure (DCS) magnet(s) of the MR sensor and shields the lower SAF layer and the sensor stack from DCS stray field(s), thereby reducing noise.

Abstract translation: 磁阻（MR）传感器可以包括各种单独的功能层，由此传感器堆叠的各层的电阻根据传感器堆叠内的被钉扎层的极性而变化。 MR传感器的分层合成反铁磁（SAF）上屏蔽包括由屏蔽反铁磁（AFM）层隔开的上SAF层和下SAF层。 较低的SAF层与MR传感器的侧屏蔽接触，其向MR传感器提供侧屏偏置场。 上部SAF层将下部SAF层与MR传感器的顶部屏蔽和/或域控制结构（DCS）磁体分开，并将下部SAF层和传感器堆叠屏蔽到DCS杂散场，从而减少 噪声。

公开(公告)号：US09368136B2

公开(公告)日：2016-06-14

申请号：US14192388

申请日：2014-02-27

Applicant: Seagate Technology LLC

Inventor： Zhengqi Lu ,  Daniel Hassett ,  Paula McElhinney ,  Jiansheng Xu

IPC: G11B5/115 ,  G11B5/39

CPC classification number: G11B5/3912 ,  G11B5/115 ,  G11B5/3909 ,  G11B2005/3996

Abstract: In accordance with one implementation of the described technology, an apparatus comprises a sensor structure including a top shield which includes a top shield synthetic antiferromagnetic layer and a bottom shield including a bottom shield synthetic antiferromagnetic layer, wherein the bottom synthetic antiferromagnetic shield layer acts as a seed layer structure.

Abstract translation: 根据所述技术的一个实施方案，一种装置包括传感器结构，该传感器结构包括顶盖，其包括顶盖合成反铁磁层和包括底屏蔽合成反铁磁层的底屏蔽，其中底部合成反铁磁屏蔽层用作 种子层结构。

公开(公告)号：US09165570B2

公开(公告)日：2015-10-20

申请号：US14576982

申请日：2014-12-19

Applicant: Seagate Technology LLC

Inventor： Zhengqi Lu ,  Ann Lynch ,  Daniel Hassett ,  Jiansheng Xu ,  Jae-Young Yi ,  Liwen Tan ,  Eric W. Singleton

IPC: G11B5/39 ,  G11B5/23 ,  G01R33/09

CPC classification number: G11B5/23 ,  G01R33/093 ,  G11B5/3912 ,  G11B5/3929 ,  H01F10/3204

Abstract: A magnetic element capable of reading data may generally be configured at least with a magnetic seed lamination disposed between a data reader stack and a magnetic shield. The magnetic seed lamination may be constructed at least with one magnetic layer coupled to the bottom shield and at least one non-magnetic layer decoupling the data reader stack from the at least one magnetic layer.

Abstract translation: 能够读取数据的磁性元件通常可以至少配置在数据读取器堆叠和磁性屏蔽之间的磁性种子​​叠层。 磁性种子层压可以至少构成一个耦合到底部屏蔽的磁性层和至少一个非磁性层使数据读取器堆叠与至少一个磁性层分离。

公开(公告)号：US09087525B2

公开(公告)日：2015-07-21

申请号：US14067456

申请日：2013-10-30

Applicant: Seagate Technology LLC

Inventor： Zhengqi Lu ,  Daniel Hassett ,  Paula McElhinney ,  Jiansheng Xu

IPC: G11B5/11 ,  G11B5/33

CPC classification number: G11B5/11 ,  G11B5/33 ,  G11B5/3909 ,  G11B5/3912 ,  G11B2005/3996

Abstract: A magneto-resistive (MR) sensor may include a variety of individual functional layers whereby an electrical resistance throughout the layers of the sensor stack varies according to the polarity of a pinned layer within the sensor stack. A layered synthetic anti-ferromagnetic (SAF) upper shield of the MR sensor includes an upper SAF layer and a lower SAF layer separated by a shield anti-ferromagnetic (AFM) layer. The lower SAF layer is in contact with a side shield of the MR sensor, which provides a side shield biasing field to the MR sensor. The upper SAF layer separates the lower SAF layer from a top shield and/or domain control structure (DCS) magnet(s) of the MR sensor and shields the lower SAF layer and the sensor stack from DCS stray field(s), thereby reducing noise.

Abstract translation: 磁阻（MR）传感器可以包括各种单独的功能层，由此传感器堆叠的各层的电阻根据传感器堆叠内的被钉扎层的极性而变化。 MR传感器的分层合成反铁磁（SAF）上屏蔽包括由屏蔽反铁磁（AFM）层隔开的上SAF层和下SAF层。 较低的SAF层与MR传感器的侧屏蔽接触，其向MR传感器提供侧屏偏置场。 上部SAF层将下部SAF层与MR传感器的顶部屏蔽和/或域控制结构（DCS）磁体分开，并将下部SAF层和传感器堆叠屏蔽到DCS杂散场，从而减少 噪声。

公开(公告)号：US20140334040A1

公开(公告)日：2014-11-13

申请号：US13889841

申请日：2013-05-08

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Zhengqi Lu ,  Daniel Hassett ,  Jiansheng Xu

IPC: G11B5/11

CPC classification number: G11B5/11 ,  G01R33/0076 ,  G01R33/025 ,  G01R33/093 ,  G11B5/3912 ,  H01L43/08 ,  H01L43/10

Abstract: A magnetic element may generally be configured as a read head with at least a magnetic stack that contacts at least one magnetic shield. The magnetic shield can be positioned on top of a base lamination and have at least a predetermined anisotropy and magnetic coercivity corresponding to the base lamination.

Abstract translation: 磁性元件通常可被配置为至少具有至少一个磁性屏蔽层的磁性堆叠的读取头。 磁屏蔽可以位于基底层叠的顶部上，并且具有至少相应于基底层压的预定的各向异性和磁矫顽力。

公开(公告)号：US20140218821A1

公开(公告)日：2014-08-07

申请号：US13761216

申请日：2013-02-07

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Zhengqi Lu ,  Ann Lynch ,  Daniel Hassett ,  Jiansheng Xu ,  Jae-Young Yi ,  Liwen Tan ,  Eric W. Singleton

IPC: G11B5/127

CPC classification number: G11B5/23 ,  G01R33/093 ,  G11B5/3912 ,  G11B5/3929 ,  H01F10/3204

Abstract: A magnetic element capable of reading data may generally be configured at least with a magnetic seed lamination disposed between a data reader stack and a magnetic shield. The magnetic seed lamination may be constructed at least with one magnetic layer coupled to the bottom shield and at least one non-magnetic layer decoupling the data reader stack from the at least one magnetic layer.

Abstract translation: 能够读取数据的磁性元件通常可以至少配置在数据读取器堆叠和磁性屏蔽之间的磁性种子​​叠层。 磁性种子层压可以至少构成一个耦合到底部屏蔽的磁性层和至少一个非磁性层使数据读取器堆叠与至少一个磁性层分离。