公开(公告)号：US09685178B1

公开(公告)日：2017-06-20

申请号：US15183347

申请日：2016-06-15

Applicant: Seagate Technology LLC

Inventor： David A. Deen ,  Taras G. Pokhil ,  Eric Singleton ,  Mohammed Shariat Ullah Patwari

IPC: G11B5/39

CPC classification number: G11B5/398 ,  G11B5/3909 ,  G11B5/3912 ,  G11B5/3948 ,  G11B5/397 ,  G11B2005/3996

Abstract: A lateral spin valve reader includes a channel layer having a first end that is proximate to a bearing surface and a second end that is away from the bearing surface. The lateral spin valve reader also includes a detector structure disposed over an upper surface of a first portion of the channel layer that is proximate to the first end of the channel layer. A spin injection structure disposed below a lower surface of a second portion of the channel layer is proximate to the second end of the channel layer. An area of overlap between the spin injection structure and the second portion of the channel layer is substantially larger than an area of overlap between the detector structure and the first portion of the channel layer.

公开(公告)号：US09524737B2

公开(公告)日：2016-12-20

申请号：US14105434

申请日：2013-12-13

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Steven A. Mastain

IPC: G11B5/39 ,  G11B5/115 ,  G11B5/11 ,  G11B5/48

CPC classification number: G11B5/112 ,  G11B5/11 ,  G11B5/115 ,  G11B5/3912 ,  G11B5/3958 ,  G11B5/397 ,  G11B5/398 ,  G11B5/4886 ,  Y10T29/49032

Abstract: A magnetic read head including a first read element magnetically coupled to a bottom shield; a second read element magnetically coupled to a top shield; a magnetic shielding structure that magnetically shields the first read element from the second read element; and a first electrical contact electrically coupled to the bottom shield, a second electrical contact electrically coupled to the top shield and a third electrical contact electrically coupled to the magnetic shielding structure.

Abstract translation: 磁读头，其包括磁耦合到底屏蔽的第一读取元件; 磁耦合到顶部屏蔽的第二读取元件; 磁屏蔽结构，其将第一读取元件与第二读取元件磁屏蔽; 以及电耦合到底部屏蔽的第一电触点，电耦合到顶部屏蔽的第二电触点和电耦合到磁屏蔽结构的第三电触点。

公开(公告)号：US20160055868A1

公开(公告)日：2016-02-25

申请号：US14465748

申请日：2014-08-21

Applicant: HGST NETHERLANDS B.V.

Inventor： Zheng Gao ,  Lijie Guan ,  Kuok S. Ho ,  Suping Song ,  Shuxia Wang

IPC: G11B5/39 ,  G01R1/18 ,  G01R33/09

CPC classification number: G11B5/3912 ,  G01R1/18 ,  G01R33/093 ,  G11B5/3932 ,  G11B5/3948 ,  G11B5/397 ,  G11B5/4886 ,  G11B2005/3996

Abstract: According to one embodiment, a system includes a leading magnetic shield, a first sensor structure above the leading magnetic shield, a first middle magnetic shield above the first sensor structure, a nonmagnetic spacer above the first middle magnetic shield, a second middle magnetic shield above the nonmagnetic spacer, a second sensor structure above the second middle magnetic shield, and a trailing magnetic shield above the second sensor structure. Other systems, methods, and computer program products are described in additional embodiments.

Abstract translation: 根据一个实施例，系统包括前导磁屏蔽，位于导磁屏蔽之上的第一传感器结构，位于第一传感器结构之上的第一中间磁屏蔽，位于第一中间磁屏蔽之上的非磁性隔离物，位于第一中间磁屏蔽之上的第二中间磁屏蔽 非磁性间隔件，位于第二中间磁屏蔽之上的第二传感器结构，以及位于第二传感器结构之上的尾部磁屏蔽。 在另外的实施例中描述了其他系统，方法和计算机程序产品。

公开(公告)号：US09218831B1

公开(公告)日：2015-12-22

申请号：US14489299

申请日：2014-09-17

Applicant: HGST Netherlands B.V.

Inventor： Patrick Mesquita Braganca ,  Jordan Asher Katine ,  Hsin-wei Tseng ,  Howard Gordon Zolla

IPC: G11B5/39

CPC classification number: G11B5/3958 ,  G11B5/3163 ,  G11B5/3945 ,  G11B5/397 ,  G11B5/4886

Abstract: A side-by-side magnetic multi-input multi-output (MIMO) read head is provided. The read head may include a pair of side-by-side MIMO read sensors disposed between a bottom shield, a top shield and between a pair of side shields. The read head may also include a pair of electrical leads, each of which is coupled with one of the MIMO read sensors. The electrical leads extend away from an air bearing surface.

Abstract translation: 提供并行磁性多输入多输出（MIMO）读取头。 读取头可以包括一对并排MIMO读取传感器，其设置在底部屏蔽，顶部屏蔽之间和一对侧面屏蔽之间。 读取头还可以包括一对电引线，每一个电引线与MIMO读取传感器之一耦合。 电气引线远离空气轴承表面延伸。

公开(公告)号：US20150243302A1

公开(公告)日：2015-08-27

申请号：US14192467

申请日：2014-02-27

Applicant: Seagate Technology LLC

Inventor： Mark Thomas Kief ,  Thomas Roy Boonstra ,  Victor Boris Sapozhnikov ,  Harry Sam Edelman

IPC: G11B5/11 ,  G11B5/48

CPC classification number: G11B5/3912 ,  G11B5/3909 ,  G11B5/3948 ,  G11B5/3964 ,  G11B5/397 ,  G11B5/398 ,  G11B2005/3996

Abstract: A read head includes a bottom shield configured as a bottom electrical contact. A bottom reader stack is disposed on and electrically coupled to the bottom shield. A middle electrical contact is electrically coupled to a top layer of the bottom reader stack. A top reader stack is disposed on the bottom reader stack. A bottom layer of the top reader stack electrically coupled to the middle electrical contact. A top shield is configured as a top electrical contact. The top shield is disposed on and electrically coupled to the top reader stack.

Abstract translation: 读头包括配置为底部电触点的底部屏蔽。 底部读取器堆叠设置在底部屏蔽上并电耦合到底部屏蔽。 中间电触头电耦合到底部读取器叠层的顶层。 顶部读取器堆叠被布置在底部读取器堆叠上。 顶部读取器堆叠的底层电耦合到中间电触点。 顶部屏蔽被配置为顶部电气触点。 顶部屏蔽层设置在顶部读取器堆叠上并电耦合到顶部读取器堆叠。

公开(公告)号：US20150170680A1

公开(公告)日：2015-06-18

申请号：US14574829

申请日：2014-12-18

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Declan Macken ,  Eric Singleton ,  Scott Stokes

IPC: G11B5/11 ,  G11B5/60

CPC classification number: G11B5/11 ,  G11B5/397 ,  G11B5/4886

Abstract: Devices having an air bearing surface (ABS), the device including a first read sensor; a first read sensor shield; and a first stray field shield, wherein the first read sensor shield is configured to shield at least the first read sensor from magnetic fields of the device, and the first stray field shield is configured to shield the first read sensor from stray environmental magnetic fields.

Abstract translation: 具有空气轴承表面（ABS）的装置，该装置包括第一读取传感器; 第一个读取传感器屏蔽; 以及第一杂散场屏蔽，其中所述第一读取传感器屏蔽被配置为至少屏蔽所述第一读取传感器与所述设备的磁场，并且所述第一杂散场屏蔽被配置为将所述第一读取传感器屏蔽在杂散环境磁场中。

公开(公告)号：US08824106B1

公开(公告)日：2014-09-02

申请号：US13897379

申请日：2013-05-18

Applicant: Headway Technologies, Inc.

Inventor： Glen Garfunkel ,  David Hu ,  Moris Dovek ,  Yan Wu ,  Joseph Smyth ,  Min Li

IPC: G11B5/33

CPC classification number: G11B5/4976 ,  G11B5/2654 ,  G11B5/3948 ,  G11B5/397 ,  G11B5/4886 ,  G11B2005/0005

Abstract: A read head with two read sensors enables reading of a magnetically recorded medium of increased areal densities such as would be provided by two-dimensional magnetic recording. The two sensors, which may be formed in separate depositions, are arranged vertically relative to each other as top and bottom sensors, with a downtrack displacement between them that is less than 900 A and a crosstrack displacement that is less than 600 A. Their separate free layers are connected by four or three conducting leads and require no junctions for their connections. In one embodiment each sensor has separate top and bottom shields and leads. In another embodiment, there is a common shield and lead between the two sensors, but a separate top shield/lead for the top sensor and bottom shield/lead for the bottom sensor.

Abstract translation: 具有两个读取传感器的读取头使得能够读取增加面密度的磁记录介质，例如将由二维磁记录提供。 可以分开形成的两个传感器相对于彼此垂直地布置为顶部和底部传感器，其间的移动位移小于900A，并且排列位移小于600A。它们分开 自由层通过四根或三根导线连接，不需要连接用的连接点。 在一个实施例中，每个传感器具有分开的顶部和底部屏蔽物和引线。 在另一个实施例中，在两个传感器之间存在共同的屏蔽和引线，但是用于顶部传感器的单独的顶部屏蔽/引线和用于底部传感器的底部屏蔽/引线。

公开(公告)号：US07453671B1

公开(公告)日：2008-11-18

申请号：US11262700

申请日：2005-10-31

Applicant: John P. Nibarger ,  Francis X. Campos

Inventor： John P. Nibarger ,  Francis X. Campos

IPC: G11B5/39 ,  G11B5/265

CPC classification number: G11B5/397 ,  G11B5/3967

Abstract: A magnetic head comprising for reading data from magnetic media includes a first magneto-resistive (MR) reader and a second MR reader. Both of the MR readers are either anisotropic magneto-resistive (AMR) readers or giant magneto-resistive (GMR) readers. The MR readers are tuned to sense magnetic flux differently such that the magnetic head is capable of reading two different types of magnetic media. The magnetic head may be configured such that the readers share sensor shields in various configurations in order to carry out their reading functions. The magnetic head may further include a writer. In this case, the magnetic head may be configured such that the writer and the readers share sensor shields in various configurations in order to carry out their writing and reading functions.

Abstract translation: 包括用于从磁介质读取数据的磁头包括第一磁阻（MR）读取器和第二MR读取器。 两个MR读取器都是各向异性磁阻（AMR）读取器或巨磁阻（GMR）读取器。 MR读取器被调谐以不同地感测磁通量，使得磁头能够读取两种不同类型的磁性介质。 磁头可以被配置为使得读取器共享各种配置的传感器屏蔽以便执行其读取功能。 磁头还可以包括写入器。 在这种情况下，磁头可以被配置为使得写入器和读取器共享各种配置的传感器屏蔽以便执行其写入和读取功能。

公开(公告)号：US20180366148A1

公开(公告)日：2018-12-20

申请号：US15868911

申请日：2018-01-11

Applicant: International Business Machines Corporation

Inventor： Robert G. Biskeborn ,  Robert E. Fontana, JR. ,  Calvin S. Lo

IPC: G11B5/39 ,  G11B5/008

CPC classification number: G11B5/3909 ,  G11B5/00826 ,  G11B5/00878 ,  G11B5/397 ,  G11B5/4893

Abstract: An apparatus, according to one embodiment, includes a first circuit comprising a pair of terminals coupled to a first read transducer having a tunnel valve structure and a first parallel circuit. A second circuit has a pair of terminals that are coupled to a second read transducer having a tunnel valve structure. An area of a tunnel barrier portion of the second read transducer is larger than an area of a tunnel barrier portion of the first read transducer. The terminal resistance of the first circuit is less than about five times a terminal resistance of the second circuit.

公开(公告)号：US09905255B1

公开(公告)日：2018-02-27

申请号：US15415165

申请日：2017-01-25

Applicant: Seagate Technology LLC

Inventor： Narayanan Ramakrishnan ,  Declan Macken ,  Jason Bryce Gadbois

IPC: G11B5/48 ,  G11B5/31 ,  G11B5/60 ,  G11B5/39 ,  G11B5/00

CPC classification number: G11B5/4853 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/397 ,  G11B5/607 ,  G11B5/6076 ,  G11B2005/0021

Abstract: A slider of a magnetic recording head comprises a ground pad and a plurality of electrical bond pads coupled to bias sources. A component of the slider is coupled between first and second bond pads. A first heater of the slider is coupled between the first bond pad and the ground pad. A second heater of the slider is coupled between the second bond pad and the ground pad. A first diode is disposed on the slider and coupled in series with the first heater. A second diode is disposed on the slider and coupled in series with the second heater.