公开(公告)号：US20130157082A1

公开(公告)日：2013-06-20

申请号：US13328869

申请日：2011-12-16

申请人： Hong Deng ,  Xing-Cai Guo ,  Vedantham Raman ,  Robert Waltman ,  Yu-Chen Wu

发明人： Hong Deng ,  Xing-Cai Guo ,  Vedantham Raman ,  Robert Waltman ,  Yu-Chen Wu

IPC分类号： G11B5/00 ,  C10M131/10

CPC分类号： C10M131/10 ,  C10M105/54 ,  C10M107/38 ,  C10M147/00 ,  C10M147/04 ,  C10M2211/0406 ,  C10M2211/063 ,  C10M2213/04 ,  C10M2213/043 ,  C10N2240/204 ,  C10N2250/121 ,  G11B5/00

摘要： A surface agent includes two end portions and a middle portion disposed between the end portions. The end portions include an anchor group or a truncation group. The anchor group includes at least one surface active functional group. The midsection includes at least one perfluoroalkyl-branched perfluorinated ether unit.

摘要翻译： 表面剂包括两个端部和设置在端部之间的中间部分。 端部包括锚组或截断组。 锚组包括至少一个表面活性官能团。 中间部分包括至少一个全氟烷基支链全氟化醚单元。

公开(公告)号：US20130155542A1

公开(公告)日：2013-06-20

申请号：US13326213

申请日：2011-12-14

申请人： Shun Tonooka ,  Kiwamu Tanahashi ,  Hiroyuki Nakagawa ,  Ichiro Tamai

发明人： Shun Tonooka ,  Kiwamu Tanahashi ,  Hiroyuki Nakagawa ,  Ichiro Tamai

IPC分类号： G11B21/02 ,  G11B5/851 ,  G11B5/66

CPC分类号： G11B5/66 ,  G11B5/65 ,  G11B5/84 ,  G11B5/851

摘要： In one embodiment, a perpendicular magnetic recording medium includes an oxide recording layer including an oxide and a non-oxide recording layer which does not contain an oxide positioned above the oxide recording layer. The oxide recording layer includes a region R1 where a grain boundary width in a direction parallel to a plane of formation of R1 increases therealong from a lowermost portion of the oxide recording layer toward a medium surface, a region R3 positioned above R1 wherein a grain boundary width increases therealong toward the medium surface, a region R2 where a grain boundary width of R2 decreases therealong from R1 to R3, with R2 being positioned between R1 and R3, and a region R4 where a grain boundary width of R4 decreases therealong from R3 toward the medium surface, with R4 being positioned above R3 and near an uppermost portion of the oxide recording layer.

摘要翻译： 在一个实施例中，垂直磁记录介质包括氧化物记录层，该氧化物记录层包括不包含位于氧化物记录层上方的氧化物的氧化物和非氧化物记录层。 氧化物记录层包括区域R1，其中平行于R1的形成平面的方向上的晶界宽度从氧化物记录层的最下部朝向介质表面增加，位于R1上方的区域R3，其中晶界 宽度随着介质表面的增加而增加，其中R2的晶界宽度从R1向R3延伸的区域R2，R2位于R1和R3之间，R4的晶界宽度从R3向R3的边界宽度减小 中间表面，其中R4位于R3上方并且靠近氧化物记录层的最上部。

公开(公告)号：US20130135764A1

公开(公告)日：2013-05-30

申请号：US13306736

申请日：2011-11-29

申请人： Abhishek Dhanda ,  Toshiki Hirano ,  Tetsuo Semba ,  Zvonimir Z. Bandic

发明人： Abhishek Dhanda ,  Toshiki Hirano ,  Tetsuo Semba ,  Zvonimir Z. Bandic

IPC分类号： G11B27/36

CPC分类号： G11B5/59627 ,  G11B5/59694 ,  G11B20/1217 ,  G11B2020/1228 ,  G11B2020/1238 ,  G11B2220/2516

摘要： A method, apparatus and a data storage device are provided for implementing data track pitch adjustment for data written on a recordable surface of a storage device under operational vibration conditions. An operational vibration disturbance spectrum is detected during a write operation and the data track pitch is selectively adjusted based on the detected operational vibration disturbance spectrum. The adjusted track pitch information is saved and used during a read operation.

摘要翻译： 提供了一种方法，装置和数据存储装置，用于在操作的振动条件下为存储装置的可记录表面上写入的数据实现数据轨道间距调整。 在写入操作期间检测到操作的振动干扰频谱，并且基于检测到的操作振动干扰谱选择性地调整数据轨道间距。 调整后的音高信息在读取操作期间被保存和使用。

公开(公告)号：US20130094108A1

公开(公告)日：2013-04-18

申请号：US13275208

申请日：2011-10-17

申请人： Zheng Gao ,  Yingfan Xu ,  Hua Ai Zeng

发明人： Zheng Gao ,  Yingfan Xu ,  Hua Ai Zeng

IPC分类号： G11B5/127 ,  G11B5/33 ,  G11B5/60

CPC分类号： G01R33/093 ,  G11B5/3909

摘要： A magnetic read sensor having improved magnetic performance and robustness. The magnetic sensor includes a magnetic free layer and a magnetic pinned layer structure. The magnetic pinned layer structure includes first and second magnetic layers separated from one another by a non-magnetic coupling layer. The second magnetic layer of the magnetic pinned layer structure includes a layer of CoFeBTa, which prevents the diffusion of atoms and also promotes a desired BCC crystalline grain growth. The magnetic free layer structure can also include such a CoFeBTa layer for further prevention of atomic diffusion and further promotion of a desired BCC grain growth.

摘要翻译： 具有改进的磁性能和鲁棒性的磁读取传感器。 磁传感器包括无磁性层和磁性固定层结构。 磁性钉扎层结构包括通过非磁性耦合层彼此分开的第一和第二磁性层。 磁性钉扎层结构的第二磁性层包括一层CoFeBTa，其阻止原子扩散并且还促进所需的BCC晶粒生长。 磁性层结构还可以包括用于进一步防止原子扩散和进一步促进所需BCC晶粒生长的CoFeBTa层。

公开(公告)号：US20130092654A1

公开(公告)日：2013-04-18

申请号：US13275728

申请日：2011-10-18

申请人： Hamid Balamane ,  Patrick M. Braganca ,  Jordan A. Katine ,  Jui-Lung Li ,  Yang Li ,  Kanaiyalal C. Patel ,  Neil L. Robertson ,  Samuel W. Yuan

发明人： Hamid Balamane ,  Patrick M. Braganca ,  Jordan A. Katine ,  Jui-Lung Li ,  Yang Li ,  Kanaiyalal C. Patel ,  Neil L. Robertson ,  Samuel W. Yuan

IPC分类号： G11B5/127

CPC分类号： G11B5/3163 ,  G01R33/093 ,  G11B5/3169 ,  G11B5/398

摘要： A method for manufacturing a magnetic read sensor at very narrow track widths. The method uses an amorphous carbon mask layer to pattern the sensor by ion milling, rather than a mask constructed of a material such as photoresist or DURIMIDE® which can bend over during ion milling at very narrow track widths. By using the amorphous carbon layer as the masking layer, the trackwidth can be very small, while avoiding this bending over of the mask that has been experienced with prior art methods. In addition, the track-width can be further reduced by using a reactive ion etching to further reduce the width of the amorphous carbon mask prior to patterning the sensor. The method also allows extraneous portions of the side insulation layer and hard bias layer to be removed above the sensor by a light CMP process.

摘要翻译： 一种以非常窄的轨道宽度制造磁读取传感器的方法。 该方法使用无定形碳掩模层通过离子研磨对传感器进行图案化，而不是由诸如光致抗蚀剂或DURIMIDE的材料构成的掩模，其可以在非常窄的轨道宽度的离子铣削过程中弯曲。 通过使用无定形碳层作为掩蔽层，轨道宽度可以非常小，同时避免了现有技术方法经历的掩模的弯曲。 此外，通过使用反应离子蚀刻，在图案化传感器之前进一步减小无定形碳掩模的宽度，可以进一步减小轨道宽度。 该方法还允许通过光CMP工艺在传感器上方去除侧绝缘层和硬偏置层的外部部分。

公开(公告)号：US20130084468A1

公开(公告)日：2013-04-04

申请号：US13251125

申请日：2011-09-30

申请人： Thomas R. Albrecht ,  Xing-Cai Guo

发明人： Thomas R. Albrecht ,  Xing-Cai Guo

IPC分类号： G11B5/65 ,  B05D5/12

CPC分类号： G11B5/851 ,  C23C14/024 ,  C23C14/08 ,  C23C14/10 ,  C23C14/12 ,  C23C14/14 ,  C23C14/34 ,  G11B5/65 ,  G11B5/855

摘要： A method for manufacturing a bit patterned magnetic media for magnetic data recording. The method includes selectively depositing a self assembled monolayer over a seed layer and then oxidizing the deposited self assembled monolayer. The self-assembled monolayer can be deposited by use of a stamp to form a pattern covering areas where a non-magnetic segregant (such as an oxide) is to be formed and openings where a magnetic material is to be formed. A magnetic alloy and a segregant (such as an oxide) are then co-sputtered. The magnetic alloy grows only or selectively over the seed layer, whereas the segregant grows only or selectively over the oxidized self-assembled monolayer.

摘要翻译： 一种用于制造用于磁数据记录的位图形磁介质的方法。 该方法包括在种子层上选择性地沉积自组装单层，然后氧化沉积的自组装单层。 可以通过使用印模来沉积自组装单层以形成覆盖要形成非磁性分离器（例如氧化物）的区域的图案，并且形成磁性材料的开口。 然后将磁性合金和分离剂（例如氧化物）共溅射。 磁性合金仅在种子层上生长或选择性地生长，而分离器在氧化的自组装单层上仅生长或选择性生长。

公开(公告)号：US20130081937A1

公开(公告)日：2013-04-04

申请号：US13370131

申请日：2012-02-09

申请人： Thomas R. Albrecht

发明人： Thomas R. Albrecht

IPC分类号： C23C14/34 ,  C01B13/14 ,  B01J19/12

CPC分类号： H01F41/34 ,  B82Y40/00 ,  C01B13/14 ,  C23C14/0036 ,  C23C14/024 ,  C23C14/028 ,  C23C14/08 ,  C23C14/14 ,  G11B5/65 ,  G11B5/746 ,  G11B5/855 ,  H01F1/009 ,  H01F10/123

摘要： A method for manufacturing a bit patterned magnetic media for magnetic data recording. The method includes patterning a topography that includes an array of raised regions separated by a recessed portion. The array can be patterned by micro-printing using a stamp that has raised islands. The raised regions can have a height of 1 to 5 nm as measured from the recessed region. A magnetic alloy and a non-magnetic segregant are then co-sputtered. The magnetic alloy preferentially grows over the raised portions and the non-magnetic segregant grow preferentially over the recessed region between the raised portions.

摘要翻译： 一种用于制造用于磁数据记录的位图形磁介质的方法。 该方法包括图案化，其包括由凹部分开的凸起区域的阵列。 该阵列可以通过使用凸起凸起的印模进行微印而进行图案化。 凸起区域可以具有从凹陷区域测量的1至5nm的高度。 然后将磁性合金和非磁性分离器共溅射。 磁性合金优先生长在凸起部分之上，非磁性分离器优先在凸起部分之间的凹陷区域上生长。

公开(公告)号：US20130081263A1

公开(公告)日：2013-04-04

申请号：US13251082

申请日：2011-09-30

申请人： Guomin Mao ,  Sue Siyang Zhang ,  Yi Zheng

发明人： Guomin Mao ,  Sue Siyang Zhang ,  Yi Zheng

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for manufacturing a magnetic write pole of a magnetic write head for perpendicular magnetic recording. A magnetic write pole material is deposited, followed by union milling hard mask, a polymer mask under-layer followed by a dielectric hard mask material, followed by a photoresist. The photoresist is patterned to define a write pole shape and the shape of the patterned photoresist is transferred onto the underlying dielectric hard mask by a novel reactive ion etching that is performed in a chemistry that includes one or more fluorine containing gases and He. The presence of He in the reactive ion etching tool helps to improve the profile of the patterned dielectric hard mask. In addition, RIE parameters such a gas ratio (e.g. CF4 to CHF3 gas ratio) and power ratio (e.g. source power to bias power) are adjusted to optimize the profile of the patterned dielectric mask.

摘要翻译： 一种用于制造用于垂直磁记录的磁写头的磁写磁极的方法。 沉积磁性写入极材料，随后是联合铣削硬掩模，聚合物掩模底层，随后是电介质硬掩模材料，随后是光致抗蚀剂。 光致抗蚀剂被图案化以限定写磁极形状，并且通过在包括一种或多种含氟气体和He的化学中进行的新型反应离子蚀刻将图案化光致抗蚀剂的形状转印到下面的电介质硬掩模上。 反应离子蚀刻工具中He的存在有助于改善图案化电介质硬掩模的轮廓。 此外，调整诸如气体比（例如CF4至CHF3气体比）和功率比（例如源功率与偏置功率）的RIE参数以优化图案化电介质掩模的轮廓。

公开(公告)号：US08411390B2

公开(公告)日：2013-04-02

申请号：US12589038

申请日：2009-10-16

申请人： Luiz M. Franca-Neto ,  Bernhard E. Knigge ,  Petrus Antonius Van Der Heijden

发明人： Luiz M. Franca-Neto ,  Bernhard E. Knigge ,  Petrus Antonius Van Der Heijden

IPC分类号： G11B5/17 ,  G11B5/187

CPC分类号： G11B5/1278 ,  G11B5/315 ,  G11B5/3153

摘要： A structure for providing two write assist components for perpendicular thin film heads writing to high coercivity media is disclosed. The two components provided by the present invention include a media writing assist component and a head switching assist component. The structure includes an auxiliary half coil surrounding the pole tip at the ABS, and includes conductive elements running parallel to the pole layer which are connected to the auxiliary half coil. Integrated heat sinks located at either the ABS or at a recessed position are provided. The conductive elements can prove either symmetric or asymmetric current feed geometries, which allow differential or common mode current flow to the half coil.

摘要翻译： 公开了一种用于为垂直薄膜头写入高矫顽力介质的两个写入辅助部件的结构。 本发明提供的两个部件包括介质写入辅助部件和磁头切换辅助部件。 该结构包括在ABS处围绕极尖的辅助半线圈，并且包括与辅助半线圈连接的平行于极层延伸的导电元件。 提供位于ABS或凹陷位置的集成散热器。 导电元件可以证明对称或不对称的电流馈送几何形状，这允许差分或共模电流流向半线圈。

公开(公告)号：US08373940B2

公开(公告)日：2013-02-12

申请号：US12547964

申请日：2009-08-26

申请人： Yohji Maruyama ,  Nobumasa Nishiyama ,  Masafumi Mochizuki

发明人： Yohji Maruyama ,  Nobumasa Nishiyama ,  Masafumi Mochizuki

IPC分类号： G11B5/02 ,  G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/314 ,  G11B2005/001

摘要： According to one embodiment, a magnetic head for recording magnetic data by changing the magnetization direction of a magnetic recording layer of a magnetic medium comprises a magnetic pole for generating a magnetic field to change the magnetization direction of the magnetic recording layer, and a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer to assist the change of the magnetization direction of the magnetic recording layer caused by the magnetic field from the magnetic pole. Other embodiments are also presented.

摘要翻译： 根据一个实施例，用于通过改变磁介质的磁记录层的磁化方向来记录磁数据的磁头包括用于产生磁场以改变磁记录层的磁化方向的磁极和面对电极 用于产生电磁场并向磁记录层施加能量以帮助由磁极引起的磁场引起的磁记录层的磁化方向的改变。 还提出了其他实施例。