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公开(公告)号：US09928858B1
公开(公告)日：2018-03-27
申请号：US15702571
申请日：2017-09-12
Applicant: Seagate Technology LLC
Inventor： Zhe Shen , Zuxuan Lin , Lei Lu , Jian Zhong
CPC classification number: G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/315 , G11B5/3166 , G11B5/3196 , G11B19/048
Abstract: A method that includes supplying a predetermined signal to a write head having side shields. The method also includes performing, by the write head, a recording operation on a surface of a data storage medium, when the predetermined signal is supplied to the write head, to provide a recorded magnetization pattern. The method further includes carrying out measurements on a portion of the recorded magnetization pattern influenced by a magnetization of the side shields. The measurements are employed to determine whether a reversed side shield magnetization condition is present in the write head.
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公开(公告)号：US09495979B1
公开(公告)日：2016-11-15
申请号：US14871597
申请日：2015-09-30
Applicant: Seagate Technology LLC
Inventor： Xiaohong Zhang , Wei Tian , Zhe Shen , Dong Lin , Joseph Mundenar
CPC classification number: G11B5/3912 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/3163
Abstract: Implementations disclosed herein provide a method of forming a first layer of a front shield in a magnetic recording head, depositing an active shield control (ASC) device on the first layer, and forming a second layer of the front shield on top of the ASC device and the first layer of the front shield. In another implementation, an apparatus includes a write pole, and a two layer front shield formed on the write pole, including an ASC device between the two layers of the front shield.
Abstract translation: 本文公开的实施方案提供了一种在磁记录头中形成前屏蔽的第一层的方法，在第一层上沉积主动屏蔽控制（ASC）装置，以及在ASC装置的顶部上形成前屏蔽的第二层 和前盾的第一层。 在另一个实施方式中，一种装置包括一个写入极和形成在写入极上的两层前屏蔽，其中包括在前屏蔽层的两层之间的ASC装置。
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公开(公告)号：US20150103439A1
公开(公告)日：2015-04-16
申请号：US14052300
申请日：2013-10-11
Applicant: Seagate Technology LLC
Inventor： Huaqing Yin , Wei Tian , Zhe Shen , Kirill Rivkin , Jianhua Xue
IPC: G11B5/187
CPC classification number: G11B5/1871 , G11B5/1278 , G11B5/3116
Abstract: A magnetic element can have at least a write pole configured with a write pole tip that has a tip surface oriented at a first angle with respect to an air bearing surface (ABS), a first bevel surface extending from the ABS and oriented at a second angle with respect to the ABS, and a second bevel surface extending from the ABS and oriented at a third angle with respect to the ABS. The first, second, and third angles may be configured to be different and non-orthogonal to each other.
Abstract translation: 磁性元件可以具有至少一个写入极，其配置有写入磁极尖端，所述写入磁极尖端具有相对于空气轴承表面（ABS）以第一角度定向的尖端表面，从ABS延伸并且在第二角度定向的第一斜面 相对于ABS的角度以及从ABS延伸并相对于ABS以第三角度定向的第二斜面。 第一，第二和第三角度可以被配置为彼此不同且非正交。
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公开(公告)号：US08842390B2
公开(公告)日：2014-09-23
申请号：US13745031
申请日：2013-01-18
Applicant: Seagate Technology LLC
CPC classification number: G11B5/115 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315 , G11B5/3163
Abstract: A magnetic element may be generally configured as a data writer constructed at least with a write pole within a box shield that consists of first and second side shields and first and second vertical shields. The write pole may be separated from the box shield by a multi-layer gap structure that consists of at least two gap layers of dissimilar materials.
Abstract translation: 磁性元件通常可被配置为数据写入器，该数据写入器至少构造在由第一和第二侧屏蔽以及第一和第二垂直屏蔽构成的盒屏蔽内的写入极。 写极可以通过由至少两个不同材料的间隙层组成的多层间隙结构与盒屏蔽分离。
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公开(公告)号：US20130321955A1
公开(公告)日：2013-12-05
申请号：US13961672
申请日：2013-08-07
Applicant: Seagate Technology LLC
Inventor： Mourad Benakli , Kirill Aleksandrovich Rivkin , Zhe Shen , Jiaoming Qiu , Huaqing Yin
IPC: G11B5/11
Abstract: An apparatus includes a write pole magnetically coupled to write coils that generate a first magnetic field during a switching event. The apparatus includes a shield at a media-facing surface and proximate the write pole. A conductive element is disposed proximate the shield and configured to generate a second magnetic field opposite to the first magnetic field during the switching event. A selected one of the write coils is located adjacent the shield separate from others of the write coils.
Abstract translation: 一种装置包括磁极耦合到写入线圈的写入磁极，其在切换事件期间产生第一磁场。 该装置包括位于面向媒体的表面并靠近写入极的屏蔽。 导电元件靠近屏蔽设置，并被配置为在切换事件期间产生与第一磁场相反的第二磁场。 写入线圈中的一个选择的一个写入线圈与写入线圈的其他部分分开设置在屏蔽件附近。
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Patent Agency Ranking
公开(公告)号：US20140204485A1
公开(公告)日：2014-07-24
申请号：US13745031
申请日：2013-01-18
Applicant: SEAGATE TECHNOLOGY LLC
IPC: G11B5/115
CPC classification number: G11B5/115 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315 , G11B5/3163
Abstract: A magnetic element may be generally configured as a data writer constructed at least with a write pole within a box shield that consists of first and second side shields and first and second vertical shields. The write pole may be separated from the box shield by a multi-layer gap structure that consists of at least two gap layers of dissimilar materials.
Abstract translation: 磁性元件通常可被配置为数据写入器，该数据写入器至少构造在由第一和第二侧屏蔽以及第一和第二垂直屏蔽构成的盒屏蔽内的写入极。 写极可以通过由至少两个不同材料的间隙层组成的多层间隙结构与盒屏蔽分离。
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公开(公告)号：US09640204B2
公开(公告)日：2017-05-02
申请号：US15338729
申请日：2016-10-31
Applicant: Seagate Technology LLC
Inventor： Xiaohong Zhang , Wei Tian , Zhe Shen , Dong Lin , Joseph Mundenar
CPC classification number: G11B5/3912 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/3163
Abstract: Implementations disclosed herein provide an apparatus comprising a write pole, and a two-layer front shield formed on the write pole, the front shield comprising, a first dielectric material formed on the first layer of the front shield, an active shield control (ASC) device formed between the two layers of the front shield on the first dielectric material configured to synchronize the response to a magnetomotive force (MMF) of a write pole and the front shield, and a second dielectric material formed on the ASC device, wherein the second layer of the front shield is formed only on top of the second dielectric material and the first layer of the front shield.
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公开(公告)号：US09019659B1
公开(公告)日：2015-04-28
申请号：US14052300
申请日：2013-10-11
Applicant: Seagate Technology LLC
Inventor： Huaqing Yin , Wei Tian , Zhe Shen , Kirill Rivkin , Jianhua Xue
CPC classification number: G11B5/1871 , G11B5/1278 , G11B5/3116
Abstract: A magnetic element can have at least a write pole configured with a write pole tip that has a tip surface oriented at a first angle with respect to an air bearing surface (ABS), a first bevel surface extending from the ABS and oriented at a second angle with respect to the ABS, and a second bevel surface extending from the ABS and oriented at a third angle with respect to the ABS. The first, second, and third angles may be configured to be different and non-orthogonal to each other.
Abstract translation: 磁性元件可以具有至少一个写入极，其配置有写入磁极尖端，所述写入磁极尖端具有相对于空气轴承表面（ABS）以第一角度定向的尖端表面，从ABS延伸并且在第二角度定向的第一斜面 相对于ABS的角度以及从ABS延伸并相对于ABS以第三角度定向的第二斜面。 第一，第二和第三角度可以被配置为彼此不同且非正交。
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公开(公告)号：US20150103445A1
公开(公告)日：2015-04-16
申请号：US14052337
申请日：2013-10-11
Applicant: Seagate Technology LLC
Inventor： Jianhua Xue , Zhe Shen , Christopher James Rea , Eric Roger Meloche , Huaqing Yin
CPC classification number: G11B5/1278 , G11B5/11 , G11B5/1871 , G11B5/3116 , G11B5/315 , G11B5/3163 , G11B5/6082
Abstract: A magnetic element may be generally configured with at least a write pole that has leading and trailing regions on an air bearing surface. The leading region may have a trailing width connected to a leading width of the trailing region via a transition feature to form a substantially T-shaped cross-section on the air bearing surface.
Abstract translation: 磁性元件可以通常配置有至少一个在空气轴承表面上具有前部和后部区域的写入极。 引导区域可以具有经由过渡特征连接到尾部区域的前导宽度的拖尾宽度，以在空气轴承表面上形成基本上T形的横截面。
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公开(公告)号：US08873201B2
公开(公告)日：2014-10-28
申请号：US13961672
申请日：2013-08-07
Applicant: Seagate Technology LLC
Inventor： Mourad Benakli , Kirill Aleksandrovich Rivkin , Zhe Shen , Jiaoming Qiu , Huaqing Yin
Abstract: An apparatus includes a write pole magnetically coupled to write coils that generate a first magnetic field during a switching event. The apparatus includes a shield at a media-facing surface and proximate the write pole. A conductive element is disposed proximate the shield and configured to generate a second magnetic field opposite to the first magnetic field during the switching event. A selected one of the write coils is located adjacent the shield separate from others of the write coils.
Abstract translation: 一种装置包括磁极耦合到写入线圈的写入磁极，其在切换事件期间产生第一磁场。 该装置包括位于面向媒体的表面并靠近写入极的屏蔽。 导电元件靠近屏蔽设置，并被配置为在切换事件期间产生与第一磁场相反的第二磁场。 写入线圈中的一个选择的一个写入线圈与写入线圈的其他部分分开设置在屏蔽件附近。
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