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51.发明授权公开(公告)号：US06934132B2
公开(公告)日：2005-08-23
申请号：US09916529
申请日：2001-07-30
申请人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
发明人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
IPC分类号： G01R31/317 , G01R33/09 , G11B5/00 , G11B5/39 , H01F10/32
CPC分类号： B82Y25/00 , B82Y10/00 , G01R31/3171 , G01R33/093 , G11B5/00 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967 , H01F10/3268
摘要： A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed inmediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
摘要翻译： 磁阻效应头设置有设置有凹部的下导电层，在凹部设置有垂直偏置层。 在下导电层上提供自由层。 在自由层上，按照以下顺序层叠非磁性层，固定层，固定层和上层，以便不立即放置在垂直偏置层上方。 非磁性层，固定层，固定层和上层被埋在绝缘层中。 此外，在上层和绝缘层上设置有上导电层。 在由垂直偏置层施加的磁场的方向上，自由层的长度比固定层长，并且自由层设置在垂直偏置层附近，固定层和垂直偏置之间的距离 层保持不变。
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公开(公告)号：US6141859A
公开(公告)日：2000-11-07
申请号：US342195
申请日：1999-06-29
CPC分类号： G11B5/3967 , G11B5/1878 , G11B5/3106 , G11B5/3116 , G11B5/3163 , G11B5/4886 , Y10T29/49041 , Y10T29/49044 , Y10T29/49046
摘要： A merged head device which has: a slider main body with an air bearing surface to a magnetic medium; two magnetic shield films which are parallel disposed on a common plane with a predetermined interval and orthogonal to air flow on the downstream side of the air bearing surface of the slider main body; a magnetoresistive effect head which is disposed through a magnetic separating layer of an insulator between the two magnetic shield films; an inductive head which is composed of one magnetic pole film corresponding to one of the two magnetic shield films which is located downstream and the other magnetic pole film which is disposed through a magnetic gap on the other side of the one magnetic pole film where the magnetoresistive effect head does not exist, and recording is conducted by magnetic field which generates at the magnetic gap; and concave portions which are formed on both sides of the other magnetic pole film along the direction of the air flow on the air bearing surface of the slider main body so as to define a width of the other magnetic pole film; wherein the concave portions are filled with a non-magnetic material.
摘要翻译： 一种合并头装置，具有：具有空气支承面到磁介质的滑块主体; 两个磁屏蔽膜，其平行地设置在公共平面上，具有预定间隔并且与滑块主体的空气支承表面的下游侧上的空气流正交; 磁阻效应头，通过两个磁屏蔽膜之间的绝缘体的磁分离层布置; 感应头由一个对应于位于下游的两个磁屏蔽膜之一的磁极膜构成，另一个磁极膜通过一个磁极膜的另一侧的磁隙设置，其中磁阻 效果头不存在，并且通过在磁隙处产生的磁场进行记录; 以及凹部，其形成在所述另一个磁极膜的两侧，沿着所述滑块主体的空气支承面上的空气流动方向，以限定所述另一个磁极膜的宽度; 其中所述凹部填充有非磁性材料。
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公开(公告)号：US20060274456A1
公开(公告)日：2006-12-07
申请号：US11477402
申请日：2006-06-30
申请人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
发明人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R31/3171 , G01R33/093 , G11B5/00 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967 , H01F10/3268
摘要： A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
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公开(公告)号：US6125009A
公开(公告)日：2000-09-26
申请号：US979179
申请日：1997-11-26
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3967 , G11B2005/3996 , G11B5/3109 , G11B5/3113 , G11B5/3156 , G11B5/39
摘要： In a magnetoresistive effect composite head, magnetic shields oppose each other on a slider main body made of a ceramic material through a predetermined gap, and a magnetoresistive effect element is sandwiched and stacked between the magnetic shields with a magnetic spacer layer made of an insulator. A recording head portion uses one of the magnetic shields as a first magnetic pole, and has a second magnetic pole formed on a surface of the first magnetic pole opposite to the magnetoresistive effect element through a magnetic gap, to record information on a recording medium by means of a magnetic field generated in the magnetic gap. The magnetoresistive effect element includes a central region made of a spin-valve element to sense a medium field, and end regions for supplying a bias field and a current to the central region. The second magnetic pole is constituted by a stacked film of first and second magnetic films having different saturation magnetizations. The first and second magnetic films are close to and far from the magnetic gap, respectively. The saturation magnetization of the first magnetic film is set to a value larger than that of the second magnetic film. A method of manufacturing the above head is also disclosed.
摘要翻译： 在磁阻效应复合头中，磁屏蔽通过预定间隙在由陶瓷材料制成的滑动器主体上彼此相对，并且磁阻效应元件被夹在磁屏蔽之间并由绝缘体制成的磁隔离层叠置在磁屏蔽之间。 记录头部分使用磁屏蔽之一作为第一磁极，并且具有通过磁隙形成在与磁阻效应元件相对的第一磁极的表面上的第二磁极，以通过磁记录介质将信息记录在记录介质上 在磁隙中产生的磁场的装置。 磁阻效应元件包括由感应中间场的自旋阀元件制成的中心区域和用于向中心区域提供偏置场和电流的端部区域。 第二磁极由具有不同饱和磁化的第一和第二磁性膜的叠层膜构成。 第一和第二磁性膜分别靠近和远离磁隙。 将第一磁性膜的饱和磁化强度设定为大于第二磁性膜的饱和磁化强度。 还公开了制造上述头的方法。
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公开(公告)号：US20060232894A1
公开(公告)日：2006-10-19
申请号：US11376290
申请日：2006-03-16
申请人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
发明人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
CPC分类号： B82Y25/00 , B82Y10/00 , G01R31/3171 , G01R33/093 , G11B5/00 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967 , H01F10/3268
摘要： A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
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56.发明授权Magnetic head with a tunnel junction including metallic material sandwiched between one of an oxide and a nitride of the metallic material 有权具有隧道结的磁头，包括夹在金属材料的氧化物和氮化物之一中的金属材料公开(公告)号：US06624987B1
公开(公告)日：2003-09-23
申请号：US09583917
申请日：2000-05-31
申请人： Kazuhiko Hayashi , Keishi Ohashi , Nobuyuki Ishiwata , Masafumi Nakada , Eizo Fukami , Kiyokazu Nagahara , Hiroaki Honjou , Shinsaku Saitoh
发明人： Kazuhiko Hayashi , Keishi Ohashi , Nobuyuki Ishiwata , Masafumi Nakada , Eizo Fukami , Kiyokazu Nagahara , Hiroaki Honjou , Shinsaku Saitoh
IPC分类号： G11B5127
CPC分类号： B82Y10/00 , B82Y25/00 , B82Y40/00 , G11B5/00 , G11B5/012 , G11B5/3903 , G11B5/3909 , H01F10/3254 , H01F41/308 , Y10T29/49034
摘要： A magnetoresistive effect head which is easy to manufacture and in which a sense current is prevented from bypassing a barrier layer is provided. Also provided are a method for manufacturing the head and a magnetic recording apparatus utilizing the head. This magnetoresistive effect head utilizes an MTJ film which comprises, for forming its basic structure, a free layer, a barrier layer, a pinned layer and a pinning layer, wherein an oxide or a nitride layer is formed by oxidizing or nitriding metallic materials constituting the pinned layer and pinning layer.
摘要翻译： 提供易于制造并且防止感测电流绕过阻挡层的磁阻效应头。 还提供了一种用于制造磁头的方法和利用磁头的磁记录装置。 该磁阻效应头利用MTJ膜，其包括用于形成其基本结构的自由层，阻挡层，被钉扎层和钉扎层，其中通过氧化或氮化金属材料形成氧化物或氮化物层， 钉扎层和钉扎层。
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公开(公告)号：US6055137A
公开(公告)日：2000-04-25
申请号：US990018
申请日：1997-12-12
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3967 , G11B2005/3996 , G11B5/3113 , G11B5/3116
摘要： A magnetoresistive effect composite head includes a read magnetoresistive effect (MR) head and a recording inductive (ID) head. The MR head has first and second magnetic shield films and an MR element. The first and second magnetic shield films are formed on a slider main body in a stacked manner through a predetermined gap therebetween. Each of the first and second magnetic shield films has an end face flush with a slider floating surface. The MR element is formed between the first and second magnetic shield films through magnetic isolation layers each made of an insulator. The ID head has a first magnetic pole film, a coil, and a second magnetic pole film. The first magnetic pole film serves also as the second magnetic shield film. The coil and the second magnetic pole film are formed through an insulator on the first magnetic pole film on a surface opposite to the MR element through a predetermined magnetic gap. The second magnetic pole film has a projecting portion that defines a track width. The projecting portion has a distal end face substantially flush with the slider floating surface. A method of manufacturing a magnetoresistive effect head is also disclosed.
摘要翻译： 磁阻效应复合头包括读磁阻效应（MR）磁头和记录电感（ID）磁头。 MR头具有第一和第二磁屏蔽膜和MR元件。 第一和第二磁屏蔽膜通过其间的预定间隙以堆叠的方式形成在滑块主体上。 第一和第二磁屏蔽膜中的每一个具有与滑块浮动表面齐平的端面。 MR元件通过各自由绝缘体制成的磁隔离层形成在第一和第二磁屏蔽膜之间。 ID头具有第一磁极膜，线圈和第二磁极膜。 第一磁极膜还用作第二磁屏蔽膜。 线圈和第二磁极膜通过预定磁隙与MR元件相对的表面上的第一磁极膜上的绝缘体形成。 第二磁极膜具有限定轨道宽度的突出部分。 突出部分具有与滑块浮动表面基本齐平的远端面。 还公开了一种制造磁阻效应头的方法。
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公开(公告)号：US07369375B2
公开(公告)日：2008-05-06
申请号：US11477411
申请日：2006-06-30
申请人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
发明人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
CPC分类号： B82Y25/00 , B82Y10/00 , G01R31/3171 , G01R33/093 , G11B5/00 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967 , H01F10/3268
摘要： A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A first magnetic layer is provided on the lower conductive layer. On the first magnetic layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
摘要翻译： 磁阻效应头设置有设置有凹部的下导电层，在凹部设置有垂直偏置层。 第一磁性层设置在下导电层上。 在第一磁性层上，按照以下顺序层叠非磁性层，固定层，固定层和上层，以便不被放置在垂直偏置层的正上方。 非磁性层，固定层，固定层和上层被埋在绝缘层中。 此外，在上层和绝缘层上设置有上导电层。 在由垂直偏置层施加的磁场的方向上，自由层的长度比固定层长，并且自由层设置在垂直偏置层附近，固定层和垂直偏置之间的距离 层保持不变。
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59.发明申请公开(公告)号：US20070047158A1
公开(公告)日：2007-03-01
申请号：US11477411
申请日：2006-06-30
申请人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
发明人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R31/3171 , G01R33/093 , G11B5/00 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967 , H01F10/3268
摘要： A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
摘要翻译： 磁阻效应头设置有设置有凹部的下导电层，在凹部设置有垂直偏置层。 在下导电层上提供自由层。 在自由层上，按照以下顺序层叠非磁性层，固定层，固定层和上层，以便不被放置在垂直偏置层的正上方。 非磁性层，固定层，固定层和上层被埋在绝缘层中。 此外，在上层和绝缘层上设置有上导电层。 在由垂直偏置层施加的磁场的方向上，自由层的长度比固定层长，并且自由层设置在垂直偏置层附近，固定层与垂直偏置之间的距离 层保持不变。
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公开(公告)号：US20060007606A1
公开(公告)日：2006-01-12
申请号：US11227143
申请日：2005-09-16
申请人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
发明人： Kazuhiko Hayashi , Junichi Fujikata , Tsutomu Ishi , Shigeru Mori , Keishi Ohashi , Masafumi Nakada , Kiyokazu Nagahara , Kunihiko Ishihara , Nobuyuki Ishiwata
CPC分类号： B82Y25/00 , B82Y10/00 , G01R31/3171 , G01R33/093 , G11B5/00 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B5/3967 , H01F10/3268
摘要： A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
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