公开(公告)号：US20150109699A1

公开(公告)日：2015-04-23

申请号：US14060504

申请日：2013-10-22

Applicant: HGST Netherlands B.V.

Inventor： Carl Boone ,  Jianhua Li ,  Isao Nunokawa ,  Erhard Schreck ,  Mikito Sugiyama ,  Ikuya Tagawa ,  Yuta Udo

IPC: G11B5/40 ,  G11B5/127

CPC classification number: G11B5/3116 ,  G11B5/3136 ,  G11B5/3146 ,  G11B2005/0024 ,  Y10T29/49032

Abstract: In accordance with one embodiment, a magnetic head includes a main pole configured to emit a recording magnetic field for affecting a magnetic medium, spin torque oscillator (STO) device in electrical communication with and positioned above the main pole in a track direction, the STO device being configured to generate a high-frequency magnetic field which is superimposed with the recording magnetic field in order to record data to the magnetic medium when current flows to the STO device, and a heat sink positioned near the STO device, the heat sink being configured to reduce a temperature of the STO device when current flows to the STO device. In another embodiment, a method includes forming a heat sink behind a STO device in an element height direction perpendicular to a media facing surface, and/or on both sides of the STO device in a cross-track direction at the media facing surface.

Abstract translation: 根据一个实施例，磁头包括被配置为发射用于影响磁介质的记录磁场的主极，在轨道方向上与主极电连通并位于主极上方的自旋扭矩振荡器（STO）装置，STO 器件被配置为产生与记录磁场叠加的高频磁场，以便当电流流向STO器件时将数据记录到磁介质，以及位于STO器件附近的散热器，散热器 被配置为当电流流向STO装置时降低STO装置的温度。 在另一个实施例中，一种方法包括在垂直于介质相对表面的元件高度方向和/或在STO器件的两侧上在介质相对表面上沿交叉轨道方向形成STO器件后面的散热器。

公开(公告)号：US09135933B2

公开(公告)日：2015-09-15

申请号：US14075710

申请日：2013-11-08

Applicant: HGST Netherlands B.V.

Inventor： Isao Nunokawa ,  Mikito Sugiyama ,  Yuta Udo

IPC: G11B5/17 ,  G11B5/00 ,  G11B5/35 ,  G11B5/33 ,  G11B5/127 ,  G11B5/31

CPC classification number: G11B5/35 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/3163 ,  G11B5/332 ,  G11B2005/0024

Abstract: Embodiments described herein provide an MAMR head structure which provides a magnetic recording device equipped with a high density recording magnetic head. Characteristic variations caused by misalignment of a main pole and a STO may be reduced because the STO may be aligned with a position on the main pole where the field intensity is enhanced. The enhanced field intensity may be provided by an angle of inclination θ1 of an inclined surface on which the STO may be formed when compared to an angle of inclination θ2 around the main pole in the region of the ABS. Further embodiments provide a method for producing an MAMR head in which an exposed surface of the main pole has an angle of inclination θ2 which is less than the angle of inclination θ1 for the inclined surface of the main pole where the STO is mounted.

Abstract translation: 本文描述的实施例提供了一种MAMR头结构，其提供配备有高密度记录磁头的磁记录装置。 由于STO可以与主极上的场强增强的位置对准，因此可能会降低由主极和STO的未对准引起的特性变化。 增强的场强可以通过与倾斜角度θ1相对应的倾斜表面倾斜角θ来提供;与倾斜角度θ2相比，在ABS的区域中的主极周围。 另外的实施例提供了一种用于制造MAMR头的方法，其中主极的暴露表面具有倾斜角度θ;小于倾斜角度的角度; 1，对于STO的主极的倾斜表面， 安装。

公开(公告)号：US08995088B1

公开(公告)日：2015-03-31

申请号：US14060504

申请日：2013-10-22

Applicant: HGST Netherlands B.V.

Inventor： Carl Boone ,  Jianhua Li ,  Isao Nunokawa ,  Erhard Schreck ,  Mikito Sugiyama ,  Ikuya Tagawa ,  Yuta Udo

IPC: G11B5/127 ,  G11B5/40 ,  G11B5/00

CPC classification number: G11B5/3116 ,  G11B5/3136 ,  G11B5/3146 ,  G11B2005/0024 ,  Y10T29/49032

Abstract: In accordance with one embodiment, a magnetic head includes a main pole configured to emit a recording magnetic field for affecting a magnetic medium, a spin torque oscillator (STO) device in electrical communication with and positioned above the main pole in a track direction, the STO device being configured to generate a high-frequency magnetic field which is superimposed with the recording magnetic field in order to record data to the magnetic medium when current flows to the STO device, and a heat sink positioned near the STO device, the heat sink being configured to reduce a temperature of the STO device when current flows to the STO device. In another embodiment, a method includes forming a heat sink behind a STO device in an element height direction perpendicular to a media facing surface, and/or on both sides of the STO device in a cross-track direction at the media facing surface.

Abstract translation: 根据一个实施例，磁头包括被配置为发射用于影响磁介质的记录磁场的主极，在磁道方向上与主磁极电连通并位于主磁极上方的自旋扭矩振荡器（STO）装置， STO装置被配置为产生与记录磁场叠加的高频磁场，以便当电流流向STO装置时将数据记录到磁介质，以及位于STO装置附近的散热片，散热片 被配置为当电流流向STO装置时降低STO装置的温度。 在另一个实施例中，一种方法包括在垂直于介质相对表面的元件高度方向和/或在STO器件的两侧上在介质相对表面上沿交叉轨道方向形成STO器件后面的散热器。