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    Heat assisted narrow pole design with trailing shield
    2.
    发明授权
    Heat assisted narrow pole design with trailing shield 有权
    热辅助窄杆设计与后盾

    公开(公告)号：US08986556B2

    公开(公告)日：2015-03-24

    申请号：US13758561

    申请日：2013-02-04

    申请人： Headway Technologies, Inc.

    发明人： Xuhui Jin ,  Yuchen Zhou ,  Kenichi Takano ,  Joe Smyth

    IPC分类号： H01L21/302 ,  H01L21/461 ,  B44C1/22 ,  C03C15/00 ,  C03C25/68 ,  C23F1/00 ,  G11B5/84 ,  B82Y10/00 ,  G11B5/31 ,  G11B5/00

    CPC分类号： G11B5/84 ,  B82Y10/00 ,  G11B5/3116 ,  G11B5/314 ,  G11B2005/0021

    摘要： A TAMR (Thermally Assisted Magnetic Recording) write head is formed with a narrow pole tip, a trailing edge magnetic shield and, optionally, a plasmon shield. The narrow pole tipped write head uses the energy of laser generated edge plasmons, formed in a plasmon generating layer, to locally heat a PMR magnetic recording medium slightly below its Curie temperature, Tc. When combined with the effects of the narrow tip, this local heating to a temperature below Tc is sufficient to create good transitions and narrow track widths in the magnetic medium. The write head is capable of writing effectively on state-of-the-art PMR recording media having Hk of 20 kOe or more.

    摘要翻译： TAMR（热辅助磁记录）写头形成有窄极尖，后缘磁屏蔽和任选的等离子体屏蔽。 窄极头写头使用在等离子体发生层中形成的激光产生的边缘等离子体激元的能量来局部加热略低于其居里温度Tc的PMR磁记录介质。 当与窄尖端的作用相结合时，这种局部加热到低于Tc的温度足以在磁性介质中产生良好的转变和窄的轨道宽度。 写头能够有效地写入具有20kOe以上Hk的最先进的PMR记录介质。

    Perpendicular magnetic recording write head with milling defined track width
    4.
    发明授权
    Perpendicular magnetic recording write head with milling defined track width 有权
    垂直磁记录写头具有铣削定义的轨道宽度

    公开(公告)号：US08625235B2

    公开(公告)日：2014-01-07

    申请号：US13929181

    申请日：2013-06-27

    申请人： Headway Technologies, Inc

    发明人： Kenichi Takano ,  Yuchen Zhou ,  Min Li ,  Joe Smyth

    IPC分类号： G11B5/31

    CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/315 ,  G11B5/3163 ,  G11B2005/0024

    摘要： A main pole layer having at least a leading taper and trimmed pole tip portion is described. The leading taper increases head field up to ≧15000 Oe even for narrow track widths approaching 50 nm. For MAMR applications, a STO and trailing shield are sequentially formed on a trailing pole tip side. Furthermore, full side shields may be added to reduce fringing field. A preferred embodiment includes both of a leading taper and trailing taper at the pole tip where leading taper angle is between 20° and 60° and trailing taper angle is from 10° to 45°. A method is provided for forming various embodiments of the present invention. A key feature is that milling depth at an effective neck height distance is greater than or equal to the pole tip thickness. A self aligned STO may be formed by the same ion milling step that defines track width.

    摘要翻译： 描述了至少具有前导锥形和微调极尖部分的主极层。 即使对于接近50nm的窄轨道宽度，领先的锥形也增加了头部场>达15000 Oe。 对于MAMR应用，STO和后屏蔽依次形成在尾极端侧。 此外，可以添加全侧屏蔽以减少边缘场。 一个优选的实施例包括磁极尖端处的前锥形和后锥形，前锥度角在20°至60°之间，后锥角为10°至45°。 提供了一种用于形成本发明的各种实施例的方法。 一个关键特征是在有效颈部高度距离处的铣削深度大于或等于极尖厚度。 可以通过定义轨道宽度的相同离子铣削步骤形成自对准STO。

    Perpendicular Magnetic Recording Write Head with Milling Defined Track Width
    8.
    发明申请
    Perpendicular Magnetic Recording Write Head with Milling Defined Track Width 有权
    垂直磁记录写头与铣削定义轨道宽度

    公开(公告)号：US20130286508A1

    公开(公告)日：2013-10-31

    申请号：US13929181

    申请日：2013-06-27

    申请人： Headway Technologies, Inc.

    发明人： Kenichi Takano ,  Yuchen Zhou ,  Min Li ,  Joe Smyth

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/315 ,  G11B5/3163 ,  G11B2005/0024

    摘要： A main pole layer having at least a leading taper and trimmed pole tip portion is described. The leading taper increases head field up to ≧15000 Oe even for narrow track widths approaching 50 nm. For MAMR applications, a STO and trailing shield are sequentially formed on a trailing pole tip side. Furthermore, full side shields may be added to reduce fringing field. A preferred embodiment includes both of a leading taper and trailing taper at the pole tip where leading taper angle is between 20° and 60° and trailing taper angle is from 10° to 45°. A method is provided for forming various embodiments of the present invention. A key feature is that milling depth at an effective neck height distance is greater than or equal to the pole tip thickness. A self aligned STO may be formed by the same ion milling step that defines track width.

    摘要翻译： 描述了至少具有前导锥形和微调极尖部分的主极层。 即使对于接近50nm的窄轨道宽度，领先的锥形也增加了头部场>达15000 Oe。 对于MAMR应用，STO和后屏蔽依次形成在尾极端侧。 此外，可以添加全侧屏蔽以减少边缘场。 一个优选的实施例包括磁极尖端处的前锥形和后锥形，前锥度角在20°至60°之间，后锥角为10°至45°。 提供了一种用于形成本发明的各种实施例的方法。 一个关键特征是在有效颈部高度距离处的铣削深度大于或等于极尖厚度。 可以通过定义轨道宽度的相同离子铣削步骤形成自对准STO。