公开(公告)号：US08649249B1

公开(公告)日：2014-02-11

申请号：US11220068

申请日：2005-08-31

申请人： Erhard Schreck ,  David Fowler ,  Michael Mallary

发明人： Erhard Schreck ,  David Fowler ,  Michael Mallary

IPC分类号： G11B9/00 ,  G11B7/00

CPC分类号： G11B5/59688 ,  G11B5/59655 ,  G11B5/743 ,  G11B5/855 ,  G11B5/865

摘要： A novel method and apparatus is provided for printing magnetic patterns using heat assisted magnetic recording (HAMR). The apparatus includes an array of probes that is arranged in a predetermined pattern, such as a servo pattern. The array of probes is brought into contact, or near-contact, with a magnetic recording medium that has been bulk erased substantially along an initialization direction. Each probe is energized so as to heat its respective contacted (or near-contacted) region of the recording medium above a threshold temperature. An external magnetic field is applied to the heated regions in a direction that is substantially opposite from the initialization direction. The strength of the external magnetic field is chosen to be greater than the coercivity of the recording medium at the threshold temperature, but less than the coercivity of the recording medium at room temperature. As a result, only magnetizations in the heated regions become aligned with the external field.

摘要翻译： 提供了一种使用热辅助磁记录（HAMR）打印磁图案的新颖方法和装置。 该装置包括以预定图案布置的诸如伺服图案的探针阵列。 探针的阵列与已经大体沿着初始化方向被大量擦除的磁记录介质接触或接近接触。 每个探针被通电，以将其各自接触的（或近接触）的区域加热到高于阈值温度。 外部磁场沿与初始化方向大致相反的方向施加到加热区域。 选择外部磁场的强度大于在阈值温度下记录介质的矫顽力，但小于记录介质在室温下的矫顽力。 结果，只有加热区域中的磁化才能与外界对准。

公开(公告)号：US08315020B2

公开(公告)日：2012-11-20

申请号：US12585855

申请日：2009-09-25

申请人： Hiromi Yuasa ,  Hideaki Fukuzawa ,  Yoshihiko Fuji ,  Shuichi Murakami ,  Michiko Hara ,  Kunliang Zhang ,  Min Li ,  Erhard Schreck

发明人： Hiromi Yuasa ,  Hideaki Fukuzawa ,  Yoshihiko Fuji ,  Shuichi Murakami ,  Michiko Hara ,  Kunliang Zhang ,  Min Li ,  Erhard Schreck

IPC分类号： G11B5/39

CPC分类号： G11B5/3906 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  C23C8/36 ,  C23C14/5833 ,  C23C14/584 ,  C23C14/5846 ,  C23C14/5853 ,  G01R33/093 ,  G11B2005/3996 ,  H01F10/3259 ,  H01F10/3272 ,  H01F41/307

摘要： A method for manufacturing a magneto-resistance effect element is provided. The magneto-resistance effect element includes a first magnetic layer including a ferromagnetic material, a second magnetic layer including a ferromagnetic material and a spacer layer provided between the first magnetic layer and the second magnetic layer, the spacer layer having an insulating layer and a conductive portion penetrating through the insulating layer. The method includes: forming a film to be a base material of the spacer layer; performing a first treatment using a gas including at least one of oxygen molecules, oxygen atoms, oxygen ions, oxygen plasma and oxygen radicals on the film; and performing a second treatment using a gas including at least one of hydrogen molecules, hydrogen atoms, hydrogen ions, hydrogen plasma, hydrogen radicals, deuterium molecules, deuterium atoms, deuterium ions, deuterium plasma and deuterium radicals on the film submitted to the first treatment.

摘要翻译： 提供一种制造磁阻效应元件的方法。 磁阻效应元件包括包括铁磁材料的第一磁性层，包括铁磁材料的第二磁性层和设置在第一磁性层和第二磁性层之间的间隔层，间隔层具有绝缘层和导电 部分穿透绝缘层。 该方法包括：将膜形成为间隔层的基材; 使用包含氧分子，氧原子，氧离子，氧等离子体和氧自由基中的至少一种的气体进行第一处理; 氢原子，氢离子，氢等离子体，氢原子，氘分子，氘原子，氘离子，氘离子和氘原子中的至少一种的气体进行第二次处理。 。

公开(公告)号：US20120279051A1

公开(公告)日：2012-11-08

申请号：US13551670

申请日：2012-07-18

申请人： Yuchen Zhou ,  Kenichi Takano ,  Xuhui Jin ,  Erhard Schreck ,  Moris Dovek ,  Joe Smyth

发明人： Yuchen Zhou ,  Kenichi Takano ,  Xuhui Jin ,  Erhard Schreck ,  Moris Dovek ,  Joe Smyth

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021 ,  Y10T29/49032

摘要： A method of forming a TAMR (Thermal Assisted Magnetic Recording) write head that uses the energy of optical-laser generated edge plasmons in a plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. The method incorporates forming a magnetic core within the plasmon antenna, so the antenna effectively becomes an extension of the magnetic pole and produces a magnetic field whose maximum gradient overlaps the region being heated by the edge plasmons generated in the conducting layer of the antenna surrounding the antenna's magnetic core.

摘要翻译： 一种形成TAMR（热辅助磁记录）写头的方法，其使用等离子体激元中的激光产生的边缘等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。 该方法包括在等离子体激元天线内形成磁芯，因此天线有效地成为磁极的延伸，并产生磁场，其最大梯度与被天线周围的天线导电层中产生的边缘等离子体激发加热的区域重叠 天线的磁芯。

公开(公告)号：US20120155232A1

公开(公告)日：2012-06-21

申请号：US12928678

申请日：2010-12-16

申请人： Erhard Schreck ,  Tobias Maletzky ,  Xuhui Jin ,  Yuchun Zhou ,  Kenichi Takano ,  Joe Smyth

发明人： Erhard Schreck ,  Tobias Maletzky ,  Xuhui Jin ,  Yuchun Zhou ,  Kenichi Takano ,  Joe Smyth

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G02B6/125 ,  G02B6/2821 ,  G11B5/3189 ,  G11B2005/001 ,  G11B2005/0021

摘要： A waveguide structure for a TAMR head is disclosed wherein at least one detection waveguide is formed parallel to a main waveguide and located a gap distance therefrom. A light source transmits light into the main waveguide and towards an ABS/medium interface. A plasmon generator converts light from the waveguide into plasmon waves that are directed onto a magnetic medium. Back reflected light is captured by the main waveguide, partially diverted into a detection waveguide, and transmitted to a photo detector that measures light intensity (IB) which correlates closely to the plasmon wave intensity at the ABS/medium interface. A controller linked to the photo detector is employed to calculate IB as a function of ABS/medium spacing in a non-write condition and this relationship can be used to control and maintain a constant plasmon wave intensity at the ABS during a series of TAMR write processes with a plurality of media.

公开(公告)号：US08179628B2

公开(公告)日：2012-05-15

申请号：US12803874

申请日：2010-07-08

申请人： Yuchen Zhou ,  Tobias Maletzky ,  Xuhui Jin ,  Zhigang Bai ,  Kenichi Takano ,  Erhard Schreck

发明人： Yuchen Zhou ,  Tobias Maletzky ,  Xuhui Jin ,  Zhigang Bai ,  Kenichi Takano ,  Erhard Schreck

IPC分类号： G11B5/02 ,  G11B11/00

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a magnetic core plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the maximum gradient and value of the magnetic recording field should be at a point of the magnetic medium that is as close as possible to the point being heated. In addition, the coupling between the optical mode and the plasmon mode should be efficient so that maximum energy is transmitted to the medium. The present invention achieves both these objects by surrounding the magnetic core of a plasmon antenna by a variable thickness plasmon generating layer, whose thinnest and shortest portion is at the ABS end of the TAMR head and whose thickest and longest portion efficiently couples to the optical mode of a waveguide to produce a plasmon.

公开(公告)号：US20120008229A1

公开(公告)日：2012-01-12

申请号：US12803874

申请日：2010-07-08

申请人： Yuchen Zhou ,  Tobias Maletzky ,  Xuhui Jin ,  Zhigang Bai ,  Kenichi Takano ,  Erhard Schreck

发明人： Yuchen Zhou ,  Tobias Maletzky ,  Xuhui Jin ,  Zhigang Bai ,  Kenichi Takano ,  Erhard Schreck

IPC分类号： G11B5/02 ,  G11B5/127

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a magnetic core plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the maximum gradient and value of the magnetic recording field should be at a point of the magnetic medium that is as close as possible to the point being heated. In addition, the coupling between the optical mode and the plasmon mode should be efficient so that maximum energy is transmitted to the medium. The present invention achieves both these objects by surrounding the magnetic core of a plasmon antenna by a variable thickness plasmon generating layer, whose thinnest and shortest portion is at the ABS end of the TAMR head and whose thickest and longest portion efficiently couples to the optical mode of a waveguide to produce a plasmon.

摘要翻译： TAMR（热辅助磁记录）写头使用磁芯等离子体天线中的激光产生的等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。 为了使TAMR头能够最有效地运行，磁记录场的最大梯度和值应当在尽可能接近被加热点的磁介质的一个点处。 另外，光模式和等离子体激元模式之间的耦合应该是有效的，从而将最大能量传输到介质。 本发明通过可变厚度等离子体发生层围绕等离子体激元天线的磁芯来实现这两个目的，其最薄和最短部分在TAMR头的ABS端，并且其最厚和最长部分有效地耦合到光学模式 的波导产生等离子体激元。

公开(公告)号：US20110279920A1

公开(公告)日：2011-11-17

申请号：US12800194

申请日：2010-05-11

申请人： Kenichi Takano ,  Joe Smyth ,  Erhard Schreck

发明人： Kenichi Takano ,  Joe Smyth ,  Erhard Schreck

IPC分类号： G11B5/10

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/314 ,  G11B2005/0021

摘要： Improved spatial resolution during TAMR has been achieved by shaping the write pole to have a lower surface that slopes away from the surface of the recording medium, starting at, or near, the pole's leading edge. The approach may be used for simple or compound (stitched) poles.

摘要翻译： 通过使写入极通过成形使具有从磁极的前缘开始或接近磁极的边缘的表面离开记录介质的表面的下表面来实现TAMR期间的改进的空间分辨率。 该方法可用于简单或复合（缝合）极。

公开(公告)号：US20110181979A1

公开(公告)日：2011-07-28

申请号：US12657637

申请日：2010-01-25

申请人： Xuhui Jin ,  Kenichi Takano ,  Yuchen Zhou ,  Erhard Schreck ,  Joe Smyth ,  Moris Dovek

发明人： Xuhui Jin ,  Kenichi Takano ,  Yuchen Zhou ,  Erhard Schreck ,  Joe Smyth ,  Moris Dovek

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a plasmon generator to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the antenna is formed in three portions, a wide portion of uniform horizontal area, a tapered portion tapering towards the ABS of the write head and a narrow tip extending from the tapered portion to the ABS. The wide portion enhances coupling of optical radiation from a waveguide to surface plasmons generated within the generator, the tapered portion condenses and focuses the plasmons as they propagate towards the ABS and the narrow tip further focuses the surface plasmon field at the medium surface.

摘要翻译： TAMR（热辅助磁记录）写头使用等离子体发生器中的光学激光器产生的等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。 为了使TAMR头能够最有效地工作，天线形成为三个部分，宽度均匀的水平区域，朝向写入头的ABS渐缩的锥形部分和从锥形部分延伸到ABS的窄尖端。 宽部分增强了来自波导的光辐射与在发生器内产生的表面等离子体激元的耦合，锥形部分在等离子体激元朝向ABS传播时冷凝并聚焦等离子体，并且窄尖端进一步将中等表面的表面等离子体场聚焦。

公开(公告)号：US20100091415A1

公开(公告)日：2010-04-15

申请号：US12585854

申请日：2009-09-25

申请人： Hiromi Yuasa ,  Hideaki Fukuzawa ,  Yoshihiko Fuji ,  Shuichi Murakami ,  Michiko Hara ,  Kunliang Zhang ,  Min Li ,  Erhard Schreck

发明人： Hiromi Yuasa ,  Hideaki Fukuzawa ,  Yoshihiko Fuji ,  Shuichi Murakami ,  Michiko Hara ,  Kunliang Zhang ,  Min Li ,  Erhard Schreck

IPC分类号： G11B5/33 ,  B01J19/08

CPC分类号： G01R33/093 ,  B82Y25/00 ,  B82Y40/00 ,  G11B5/3906 ,  G11B5/398 ,  G11B5/3983 ,  H01F10/3259 ,  H01F10/3272 ,  H01F41/307 ,  H01L43/08 ,  H01L43/12

摘要： A method for manufacturing a magneto-resistance effect element is provided. The magneto-resistance effect element includes a first magnetic layer including a ferromagnetic material, a second magnetic layer including a ferromagnetic material and a spacer layer provided between the first magnetic layer and the second magnetic layer, the spacer layer having an insulating layer and a conductive portion penetrating through the insulating layer. The method includes: forming a film to be a base material of the spacer layer; performing a first treatment using a gas including at least one of oxygen molecules, oxygen atoms, oxygen ions, oxygen plasma and oxygen radicals on the film; and performing a second treatment using a gas including at least one of nitrogen ions, nitrogen atoms, nitrogen plasma, and nitrogen radicals on the film submitted to the first treatment.

摘要翻译： 提供一种制造磁阻效应元件的方法。 磁阻效应元件包括包括铁磁材料的第一磁性层，包括铁磁材料的第二磁性层和设置在第一磁性层和第二磁性层之间的间隔层，间隔层具有绝缘层和导电 部分穿透绝缘层。 该方法包括：将膜形成为间隔层的基材; 使用包含氧分子，氧原子，氧离子，氧等离子体和氧自由基中的至少一种的气体进行第一处理; 以及使用包含氮离子，氮原子，氮等离子体和氮自由基中的至少一种的气体进行第一次处理的膜的第二处理。

公开(公告)号：US20100091414A1

公开(公告)日：2010-04-15

申请号：US12585851

申请日：2009-09-25

申请人： Hiromi Yuasa ,  Hideaki Fukuzawa ,  Yoshihiko Fuji ,  Shuichi Murakami ,  Michiko Hara ,  Kunliang Zhang ,  Min Li ,  Erhard Schreck

发明人： Hiromi Yuasa ,  Hideaki Fukuzawa ,  Yoshihiko Fuji ,  Shuichi Murakami ,  Michiko Hara ,  Kunliang Zhang ,  Min Li ,  Erhard Schreck

IPC分类号： G11B5/33 ,  B05D3/04 ,  B05D3/02

CPC分类号： G11B5/3983 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/093 ,  G11B5/3163 ,  G11B5/3906 ,  G11B2005/3996 ,  H01F10/3259 ,  H01F10/3272 ,  H01F41/307

摘要： A method for manufacturing a magneto-resistance effect element is provided. The magneto-resistance effect element includes a first magnetic layer including a ferromagnetic material, a second magnetic layer including a ferromagnetic material and a spacer layer provided between the first magnetic layer and the second magnetic layer, the spacer layer having an insulating layer and a conductive portion penetrating through the insulating layer. The method includes: forming a film to be a base material of the spacer layer; performing a first treatment using a gas including at least one of oxygen molecules, oxygen atoms, oxygen ions, oxygen plasma and oxygen radicals on the film; and performing a second treatment using a gas including at least one of krypton ions, krypton plasma, krypton radicals, xenon ions, xenon plasma and xenon radicals on the film submitted to the first treatment.

摘要翻译： 提供一种制造磁阻效应元件的方法。 磁阻效应元件包括包括铁磁材料的第一磁性层，包括铁磁材料的第二磁性层和设置在第一磁性层和第二磁性层之间的间隔层，间隔层具有绝缘层和导电 部分穿透绝缘层。 该方法包括：将膜形成为间隔层的基材; 使用包含氧分子，氧原子，氧离子，氧等离子体和氧自由基中的至少一种的气体进行第一处理; 以及使用包含氪离子，氪等离子体，氪原子，氙离子，氙等离子体和氙自由基中的至少一种的气体进行第一处理的第二处理。