公开(公告)号：US20130271873A1

公开(公告)日：2013-10-17

申请号：US13914990

申请日：2013-06-11

Applicant: Seagate Technology LLC

Inventor： Mourad Benakli ,  Michael Mallary

IPC: G11B5/667

CPC classification number: G11B5/667 ,  G11B5/82 ,  G11B5/855

Abstract: A recording media design having discrete track recording structure where the trenches between tracks are filled with a soft magnetic material is provided. The soft magnetic material provides a low magnetic impedance path to the soft underlayer such that fringe fields from the write head are conducted to the soft underlayer without having a negative effect such as adjacent track erasure. A method of manufacturing the media includes a nano-imprint step and ion milling out the data layer to create the trenches. A B2O3 material allows the data layer to be ion milled out without redeposition bridging the B2O3 layer thus preventing lift off of the mask. The trenches are then filled by ion deposition with the layers of ferromagnetic material separated by an anti-ferromagnetic coupling that causes the flux to be conducted to the soft underlayer and remnant flux to rotate within the island and not into adjacent tracks.

Abstract translation: 提供了具有离散轨道记录结构的记录介质设计，其中轨道之间的沟槽被软磁材料填充。 软磁材料提供到软底层的低磁阻抗路径，使得来自写头的边缘场被传导到软底层，而不会产生诸如相邻轨道擦除的负面影响。 制造介质的方法包括纳米压印步骤和离子铣出数据层以产生沟槽。 B2O3材料允许将数据层离子研磨而不再沉积B2O3层，从而防止掩模剥离。 然后通过离子沉积来填充沟槽，铁磁材料层通过反铁磁耦合分开，这导致通量被引导到软底层，剩余通量在岛内旋转而不进入相邻的轨道。

公开(公告)号：US20130114164A1

公开(公告)日：2013-05-09

申请号：US13733300

申请日：2013-01-03

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Mourad Benakli ,  Michael Mallary

IPC: G11B5/11

CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

Abstract: A write head has a pole tip, a write yoke connected to the pole tip, a write return yoke, a write shield, and one or more side shields disposed in close proximity to the pole tip. The write return yoke connects to the write yoke on one end and the write shield on a different end. The one or more side shields are separated from the pole tip and write shields by a non-magnetic material and therefore are “floating” and not directly coupled to the write shield or pole tip.

Abstract translation: 写头具有极尖，与磁极尖连接的写磁轭，写回位磁轭，写屏蔽以及设置在极尖附近的一个或多个侧屏蔽。 写入返回磁轭在一端连接到写磁轭，而在另一端连接写屏蔽。 一个或多个侧面屏蔽件与极尖分离，并由非磁性材料写入屏蔽，因此“浮动”并且不直接耦合到写入屏蔽或极尖。

公开(公告)号：US09495996B2

公开(公告)日：2016-11-15

申请号：US13843222

申请日：2013-03-15

Applicant: Seagate Technology LLC

Inventor： Kaizhong Gao ,  Michael Mallary ,  Ching He

IPC: G11B5/39 ,  G11B11/105 ,  B82Y10/00 ,  G11B5/11 ,  G11B5/31 ,  G11B5/74 ,  G11B5/82 ,  G11B5/127 ,  G11B5/00

CPC classification number: G11B11/10539 ,  B82Y10/00 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3967 ,  G11B5/743 ,  G11B5/82 ,  G11B2005/0021

Abstract: A writer includes a magnetic write pole having a leading surface and a trailing surface and a near field transducer peg spaced from the leading surface of the write pole to provide energy assisted recording. A magnetic recording system for writing to and reading from a continuous magnetic medium includes a write element having a write element tip having a leading edge and a trailing edge, and wherein at least one surface of the write element that extends in a cross-track direction on the continuous magnetic medium has no line of symmetry.

Abstract translation: 写入器包括具有前表面和后表面的磁写入极和与写极的前表面间隔开的近场换能器，以提供能量辅助的记录。 一种用于对连续磁介质进行写入和读取的磁记录系统包括一写入元件，该写入元件具有一个具有前缘和后缘的写元件尖端，并且其中该写元件的至少一个表面沿横向方向延伸 在连续磁介质上没有对称线。

公开(公告)号：US08995086B2

公开(公告)日：2015-03-31

申请号：US13733300

申请日：2013-01-03

Applicant: Seagate Technology LLC

Inventor： Mourad Benakli ,  Michael Mallary

IPC: G11B5/11 ,  G11B5/31 ,  G11B5/127

CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

Abstract: A write head has a pole tip, a write yoke connected to the pole tip, a write return yoke, a write shield, and one or more side shields disposed in close proximity to the pole tip. The write return yoke connects to the write yoke on one end and the write shield on a different end. The one or more side shields are separated from the pole tip and write shields by a non-magnetic material and therefore are “floating” and not directly coupled to the write shield or pole tip.

Abstract translation: 写头具有极尖，与磁极尖连接的写磁轭，写回位磁轭，写屏蔽以及设置在极尖附近的一个或多个侧屏蔽。 写入返回磁轭在一端连接到写磁轭，而在另一端连接写屏蔽。 一个或多个侧面屏蔽件与极尖分离，并由非磁性材料写入屏蔽，因此“浮动”并且不直接耦合到写入屏蔽或极尖。

公开(公告)号：US08830631B2

公开(公告)日：2014-09-09

申请号：US13914990

申请日：2013-06-11

Applicant: Seagate Technology LLC

Inventor： Mourad Benakli ,  Michael Mallary

IPC: G11B5/667 ,  G11B5/82 ,  G11B5/855

CPC classification number: G11B5/667 ,  G11B5/82 ,  G11B5/855

Abstract: A recording media design having discrete track recording structure where the trenches between tracks are filled with a soft magnetic material is provided. The soft magnetic material provides a low magnetic impedance path to the soft underlayer such that fringe fields from the write head are conducted to the soft underlayer without having a negative effect such as adjacent track erasure. A method of manufacturing the media includes a nano-imprint step and ion milling out the data layer to create the trenches. A B2O3 material allows the data layer to be ion milled out without redeposition bridging the B2O3 layer thus preventing lift off of the mask. The trenches are then filled by ion deposition with the layers of ferromagnetic material separated by an anti-ferromagnetic coupling that causes the flux to be conducted to the soft underlayer and remnant flux to rotate within the island and not into adjacent tracks.

Abstract translation: 提供了具有离散轨道记录结构的记录介质设计，其中轨道之间的沟槽被软磁材料填充。 软磁材料提供到软底层的低磁阻抗路径，使得来自写头的边缘场被传导到软底层，而不会产生诸如相邻轨道擦除的负面影响。 制造介质的方法包括纳米压印步骤和离子铣出数据层以产生沟槽。 B2O3材料允许将数据层离子研磨而不再沉积B2O3层，从而防止掩模剥离。 然后通过离子沉积来填充沟槽，铁磁材料层通过反铁磁耦合分开，这导致通量被引导到软底层，剩余通量在岛内旋转而不进入相邻的轨道。