公开(公告)号：US09805753B2

公开(公告)日：2017-10-31

申请号：US15078963

申请日：2016-03-23

Applicant: HGST Netherlands B.V.

Inventor： Kuok San Ho ,  Suping Song ,  Petrus Antonius Van Der Heijden

IPC: G11B5/60

CPC classification number: G11B5/60 ,  G11B5/1278 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/315

Abstract: A system, according to one embodiment, includes: a main pole; and a trailing shield. A first distance D1 is defined in a track direction between the trailing shield and a pole tip region of the main pole; and a second distance D2 is defined in the track direction between the trailing shield and a second region of the main pole located behind the pole tip region, where D2 is greater than D1. Other systems, and methods are described in additional embodiments.

公开(公告)号：US20170278532A1

公开(公告)日：2017-09-28

申请号：US15078963

申请日：2016-03-23

Applicant: HGST Netherlands B.V.

Inventor： Kuok San Ho ,  Suping Song ,  Petrus Antonius Van Der Heijden

IPC: G11B5/60

CPC classification number: G11B5/60 ,  G11B5/1278 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/315

Abstract: A system, according to one embodiment, includes: a main pole; and a trailing shield. A first distance D1 is defined in a track direction between the trailing shield and a pole tip region of the main pole; and a second distance D2 is defined in the track direction between the trailing shield and a second region of the main pole located behind the pole tip region, where D2 is greater than D1. Other systems, and methods are described in additional embodiments.

公开(公告)号：US09001473B1

公开(公告)日：2015-04-07

申请号：US14221375

申请日：2014-03-21

Applicant: HGST Netherlands B.V.

Inventor： Zheng Gao ,  James Mac Freitag ,  Kuok San Ho ,  Ching Hwa Tsang ,  Kochan Ju

IPC: G11B5/127 ,  G11B5/39

CPC classification number: G11B5/3945 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3909 ,  G11B5/3912 ,  G11B5/3954 ,  G11B5/398

Abstract: The embodiments disclosed generally relate to a read head in a magnetic recording head. The read head utilizes a sensor structure having: a pinned magnetic structure recessed from a media facing surface; and a reader gap structure. The reader gap structure has a spacer layer recessed from the media facing surface and disposed on top of the pinned magnetic structure, a recessed first free layer partially recessed from the media facing surface and disposed on top of the barrier layer, a second free layer extending to the media facing surface an disposed on top of the barrier layer, and a cap layer extending to the media facing surface disposed atop the second free layer. The pinned magnetic structure, the spacer, and the first free layer have a common face which is on an angle relative to the media facing surface.

Abstract translation: 所公开的实施例一般涉及磁记录头中的读头。 读头利用传感器结构，其具有：从介质面向表面凹陷的固定磁性结构; 和读者差距结构。 读取器间隙结构具有从介质相对表面凹陷并且设置在钉扎磁性结构的顶部上的间隔层，从介质相对表面部分地凹陷并设置在阻挡层的顶部上的凹陷的第一自由层，第二自由层延伸 到位于所述阻挡层顶部上的面向介质的表面，以及延伸到设置在所述第二自由层顶部上的介质对向表面的盖层。 钉扎磁性结构，间隔物和第一自由层具有相对于介质相对表面成一角度的公共面。