公开(公告)号：US08717711B2

公开(公告)日：2014-05-06

申请号：US13247931

申请日：2011-09-28

申请人： Atsushi Kato ,  Hideaki Tanaka ,  Ichiro Oodake ,  Takao Yonekawa

发明人： Atsushi Kato ,  Hideaki Tanaka ,  Ichiro Oodake ,  Takao Yonekawa

IPC分类号： G11B5/60

CPC分类号： G11B5/607 ,  G11B5/6076

摘要： According to one embodiment, a magnetic data system includes a magnetic disk medium, a magnetic head having a writer element and/or a reader element, an exothermic resistor element for thermal fly-height control (TFC), a contact detection sensor having a resistor element and at least one contact detection electrode, and an insulating film on a medium facing side of the magnetic head to protect the contact detection sensor, the insulating film having a thickness greater than the contact detection electrode, a drive mechanism for passing the magnetic disk medium over the magnetic head, and a controller electrically coupled to the magnetic head for controlling operation of the magnetic head, wherein the controller adjusts magnetic spacing between the magnetic head and the magnetic disk medium via thermal distortion of the exothermic resistor element. The contact detection sensor may be used as a second TFC resistor element.

摘要翻译： 根据一个实施例，磁数据系统包括磁盘介质，具有写入器元件和/或读取器元件的磁头，用于热飞跃高度控制的放热电阻器元件（TFC），具有电阻器的接触检测传感器 元件和至少一个接触检测电极，以及在磁头的面向介质侧的绝缘膜，以保护接触检测传感器，绝缘膜的厚度大于接触检测电极;驱动机构，用于使磁盘 介质在磁头上，以及控制器，其电耦合到磁头用于控制磁头的操作，其中控制器通过放热电阻器元件的热失真来调节磁头和磁盘介质之间的磁间隔。 接触检测传感器可以用作第二TFC电阻元件。

公开(公告)号：US5906884A

公开(公告)日：1999-05-25

申请号：US518391

申请日：1995-08-15

申请人： Yotsuo Yahisa ,  Yoshibumi Matsuda ,  Joe Inagaki ,  Enji Fujita ,  Takao Yonekawa ,  Mitsuhiro Shoda ,  Akira Kato ,  Yuzuru Hosoe ,  Masukazu Igarashi

发明人： Yotsuo Yahisa ,  Yoshibumi Matsuda ,  Joe Inagaki ,  Enji Fujita ,  Takao Yonekawa ,  Mitsuhiro Shoda ,  Akira Kato ,  Yuzuru Hosoe ,  Masukazu Igarashi

IPC分类号： G11B5/66 ,  G11B5/65 ,  G11B5/73 ,  G11B5/82 ,  G11B33/08

CPC分类号： G11B5/7315 ,  G11B5/7325 ,  G11B5/82 ,  G11B33/08 ,  Y10S428/90

摘要： A magnetic recording medium has a substrate made of a nonmetal nonmagnetic material whose coefficient of linear expansion lies within a range from 0.000013/deg to 0.0001/deg. A magnetic layer is formed on the substrate as a thin polycrystalline film or a thin amorphous film. The magnetic layer has Co as a main component, which exhibits a negative magnetostrictive constant so that its coercive force rises in the direction of compressive strain. The magnetic layer is subjected to an in-plane compressive strain from the substrate due to a difference between the coefficient of thermal expansion of the substrate and the magnetic layer so that high coercivity is obtained in the magnetic layer.

摘要翻译： 磁记录介质具有由非金属非磁性材料制成的基板，其线性膨胀系数在0.000013 / deg至0.0001 / deg的范围内。 作为薄多晶膜或薄的无定形膜，在基板上形成磁性层。 磁性层具有Co作为主要成分，其表现出负的磁致伸缩常数，使其矫顽力沿压缩应变的方向上升。 由于衬底的热膨胀系数与磁性层之间的差异，磁性层受到来自衬底的面内压缩应变，从而在磁性层中获得高的矫顽力。

公开(公告)号：US08568602B2

公开(公告)日：2013-10-29

申请号：US13009738

申请日：2011-01-19

申请人： Koji Sakamoto ,  Atsushi Katou ,  Takao Yonekawa ,  Norihiro Ookawa ,  Kouichi Nishioka ,  Kouji Okazaki

发明人： Koji Sakamoto ,  Atsushi Katou ,  Takao Yonekawa ,  Norihiro Ookawa ,  Kouichi Nishioka ,  Kouji Okazaki

IPC分类号： C23F1/00 ,  B44C1/22

CPC分类号： G11B5/3163 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3929 ,  H01L43/08

摘要： A method for manufacturing a magnetic sensor that decreases area resistance and decreases MR ratio of the sensor by eliminating any oxide formation in the capping layer of the sensor. The method includes forming a sensor stack having a multi-layer capping structure formed there-over. The multi-layer capping structure can include first, second, third and fourth layers. The second layer is constructed of a material that is not easily oxidized and which is different from the first layer. The sensor can be formed using a mask that includes a carbon hard mask. After the sensor stack has been formed by ion milling, the hard mask can be removed by reactive ion etching. Then, a cleaning process is performed to remove the second, third and fourth layers of the capping layer structure using an end point detection method such as secondary ion mass spectrometry to detect the presence of the second layer.

摘要翻译： 一种制造磁传感器的方法，其通过消除传感器的覆盖层中的任何氧化物形成来降低传感器的面积电阻并降低MR比。 该方法包括形成其上形成有多层封盖结构的传感器堆叠。 多层封盖结构可以包括第一层，第二层，第三层和第四层。 第二层由不容易氧化并且不同于第一层的材料构成。 传感器可以使用包括碳硬掩模的掩模形成。 在通过离子铣削形成传感器堆叠之后，可以通过反应离子蚀刻去除硬掩模。 然后，使用诸如二次离子质谱法的终点检测方法来进行清洁处理以去除覆盖层结构的第二层，第三层和第四层，以检测第二层的存在。

公开(公告)号：US20130077189A1

公开(公告)日：2013-03-28

申请号：US13247931

申请日：2011-09-28

申请人： Atsushi Kato ,  Hideaki Tanaka ,  Ichiro Oodake ,  Takao Yonekawa

发明人： Atsushi Kato ,  Hideaki Tanaka ,  Ichiro Oodake ,  Takao Yonekawa

IPC分类号： G11B5/56 ,  G01R27/08

CPC分类号： G11B5/607 ,  G11B5/6076

摘要： According to one embodiment, a magnetic data system includes a magnetic disk medium, a magnetic head having a writer element and/or a reader element, an exothermic resistor element for thermal fly-height control (TFC), a contact detection sensor having a resistor element and at least one contact detection electrode, and an insulating film on a medium facing side of the magnetic head to protect the contact detection sensor, the insulating film having a thickness greater than the contact detection electrode, a drive mechanism for passing the magnetic disk medium over the magnetic head, and a controller electrically coupled to the magnetic head for controlling operation of the magnetic head, wherein the controller adjusts magnetic spacing between the magnetic head and the magnetic disk medium via thermal distortion of the exothermic resistor element. The contact detection sensor may be used as a second TFC resistor element.

摘要翻译： 根据一个实施例，磁数据系统包括磁盘介质，具有写入器元件和/或读取器元件的磁头，用于热飞跃高度控制的放热电阻器元件（TFC），具有电阻器的接触检测传感器 元件和至少一个接触检测电极，以及在磁头的面向介质侧的绝缘膜，以保护接触检测传感器，绝缘膜的厚度大于接触检测电极;驱动机构，用于使磁盘 介质在磁头上，以及控制器，其电耦合到磁头用于控制磁头的操作，其中控制器通过放热电阻器元件的热失真来调节磁头和磁盘介质之间的磁间隔。 接触检测传感器可以用作第二TFC电阻元件。

公开(公告)号：US20120184053A1

公开(公告)日：2012-07-19

申请号：US13009738

申请日：2011-01-19

申请人： Koji Sakamoto ,  Atsushi Katou ,  Takao Yonekawa ,  Norihiro Ookawa ,  Kouichi Nishioka ,  Kouji Okazaki

发明人： Koji Sakamoto ,  Atsushi Katou ,  Takao Yonekawa ,  Norihiro Ookawa ,  Kouichi Nishioka ,  Kouji Okazaki

IPC分类号： H01L21/02

CPC分类号： G11B5/3163 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3929 ,  H01L43/08

摘要： A method for manufacturing a magnetic sensor that decreases area resistance and decreases MR ratio of the sensor by eliminating any oxide formation in the capping layer of the sensor. The method includes forming a sensor stack having a multi-layer capping structure formed there-over. The multi-layer capping structure can include first, second, third and fourth layers. The second layer is constructed of a material that is not easily oxidized and which is different from the first layer. The sensor can be formed using a mask that includes a carbon hard mask. After the sensor stack has been formed by ion milling, the hard mask can be removed by reactive ion etching. Then, a cleaning process is performed to remove the second, third and fourth layers of the capping layer structure using an end point detection method such as secondary ion mass spectrometry to detect the presence of the second layer.

摘要翻译： 一种制造磁传感器的方法，其通过消除传感器的覆盖层中的任何氧化物形成来降低传感器的面积电阻并降低MR比。 该方法包括形成其上形成有多层封盖结构的传感器堆叠。 多层封盖结构可以包括第一层，第二层，第三层和第四层。 第二层由不容易氧化并且不同于第一层的材料构成。 传感器可以使用包括碳硬掩模的掩模形成。 在通过离子铣削形成传感器堆叠之后，可以通过反应离子蚀刻去除硬掩模。 然后，使用诸如二次离子质谱法的终点检测方法来进行清洁处理以去除覆盖层结构的第二层，第三层和第四层，以检测第二层的存在。

公开(公告)号：US5587235A

公开(公告)日：1996-12-24

申请号：US193376

申请日：1994-02-08

申请人： Hiroyuki Suzuki ,  Naoki Kodama ,  Takao Yonekawa ,  Tokuho Takagaki ,  Naoto Endo ,  Katsuo Abe ,  Tsuneo Suganuma

发明人： Hiroyuki Suzuki ,  Naoki Kodama ,  Takao Yonekawa ,  Tokuho Takagaki ,  Naoto Endo ,  Katsuo Abe ,  Tsuneo Suganuma

IPC分类号： G11B5/66 ,  B32B5/16

CPC分类号： G11B5/66 ,  Y10S428/90 ,  Y10T428/12465 ,  Y10T428/12931 ,  Y10T428/26 ,  Y10T428/265

摘要： A magnetic recording medium and magnetic recording apparatus which can provide a high output level and a low noise level are disclosed. A magnetic recording medium includes a multilayer structure of magnetic alloy thin films containing Co, and at least one paramagnetic intermediate region or oxygen-rich region disposed between the magnetic layers. The intermediate region reduces the magnetic interaction between the magnetic layers without the degradation of crystallinity of the magnetic layers. As a result, a magnetic recording medium having such a structure shows low noise performance and a high recording density.

摘要翻译： 公开了一种能够提供高输出电平和低噪声电平的磁记录介质和磁记录装置。 磁记录介质包括含有Co的磁性合金薄膜的多层结构，以及设置在磁性层之间的至少一个顺磁中间区或富氧区。 中间区域减小磁性层之间的磁相互作用，而不会降低磁性层的结晶度。 结果，具有这种结构的磁记录介质显示出低噪声性能和高记录密度。