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公开(公告)号：US06876518B2
公开(公告)日：2005-04-05
申请号：US10279328
申请日：2002-10-24
CPC分类号： G11B5/1278 , Y10S977/724 , Y10S977/84 , Y10T29/49021 , Y10T29/49032 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A perpendicular magnetic recording head having an air bearing surface and comprising a substantially planar top pole and a shared pole is disclosed. The top pole and shared pole are connected distally from the air bearing surface by a yoke. A conductive coil wraps around the top pole and is positioned adjacent to the air bearing surface, with a lower portion of the coils extending between the top pole and the shared pole.
摘要翻译： 公开了具有空气轴承表面并且包括基本平坦的顶极和共享极的垂直磁记录头。 顶杆和共用杆通过轭架从空气轴承表面远端连接。 导电线圈缠绕在顶极周围并且定位成与空气支承表面相邻，线圈的下部在顶极和共享极之间延伸。
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2.发明授权Perpendicular recording head with return poles which reduce flux antenna effect 有权具有返回极的垂直记录头，减少磁通天线的影响公开(公告)号：US06798615B1
公开(公告)日：2004-09-28
申请号：US09815482
申请日：2001-03-23
IPC分类号： G11B5127
CPC分类号： G11B5/1278 , G11B5/00 , G11B5/11 , G11B2005/001 , G11B2005/0013 , G11B2005/0029
摘要： A perpendicular magnetic recording head includes a main write pole and multiple return poles. The size of each return pole is controlled in order to provide substantially the same magnetic reluctance through each return pole. The return poles effectively reduce or eliminate the flux antenna effect caused by stray magnetic fields.
摘要翻译： 垂直磁记录头包括主写极和多个返回极。 控制每个返回极的尺寸以便通过每个返回极提供基本上相同的磁阻。 返回极有效地减少或消除由杂散磁场引起的磁通天线效应。
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公开(公告)号：US06693768B1
公开(公告)日：2004-02-17
申请号：US09809118
申请日：2001-03-15
IPC分类号： G11B5147
CPC分类号： G11B5/1278 , G11B5/187 , G11B5/3153 , G11B2005/0029 , Y10T29/49021 , Y10T29/49032
摘要： A perpendicular recording head for use with magnetic storage media includes a flux focusing main pole. The main pole includes a layer of material having a high magnetic moment, and a second layer of material having a low magnetic moment. The low moment material is tapered towards the main pole's tip, so that all magnetic flux is channeled into the high moment material before writing to the magnetic storage medium.
摘要翻译： 用于磁存储介质的垂直记录头包括通量聚焦主极。 主极包括具有高磁矩的材料层和具有低磁矩的第二材料层。 低力矩材料朝向主极的尖端逐渐变细，使得在写入磁存储介质之前，所有的磁通量都被引导到高力矩材料中。
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公开(公告)号：US06721131B2
公开(公告)日：2004-04-13
申请号：US09683187
申请日：2001-11-29
IPC分类号： G11B5127
CPC分类号： G11B5/1278 , G11B5/245 , G11B5/465 , G11B2005/0008 , G11B2005/0029
摘要： A main write pole for a perpendicular recording head for use with magnetic recording media includes a main body portion of a material with a low magnetic moments, a trailing edge of a material having a high magnetic moment and a non-magnetic de-coupling layer therebetween. The strong magnetic recording field generated by the high moment magnetic material permits the use of a magnetic recording media having high anisotropy, thereby reducing super paramagnetic instabilities at high recording densities. Additionally, the high magnetic moment of the trailing edge, combined with the low magnetic moments of the remainder of the write pole, results in a highly localized magnetic recording field, thereby reducing the sensitivity of the recording process to the skew angle. Further, the de-coupling between the low and high magnetic moment portions of the write pole minimize the problem of magnetic remanence.
摘要翻译： 用于与磁记录介质一起使用的垂直记录头的主写杆包括具有低磁矩的材料的主体部分，具有高磁矩的材料的后缘和其间的非磁性解耦器层 。 由高力矩磁性材料产生的强磁记录磁场允许使用具有高各向异性的磁记录介质，从而在高记录密度下降低超顺磁不稳定性。 此外，后缘的高磁矩与写磁极的其余部分的低磁矩结合导致高度局部化的磁记录场，从而降低记录过程对偏斜角的灵敏度。 此外，写磁极的低磁矩部分和高磁矩部分之间的去耦合最小化了磁剩磁的问题。
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公开(公告)号：US06513228B1
公开(公告)日：2003-02-04
申请号：US09667105
申请日：2000-09-21
IPC分类号： G11B5127
CPC分类号： G11B5/1278 , Y10S977/724 , Y10S977/84 , Y10T29/49021 , Y10T29/49032 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method for forming a perpendicular magnetic read/write head having an air bearing surface and comprising a substantially planar top pole and a shared pole is disclosed. The steps include forming a top pole, a shared pole, and a yoke wherein the top pole and shared pole are connected distally from the air bearing surface by a yoke. A conductive coil is formed that wraps around the top pole and is positioned adjacent to the air bearing surface, with a lower portion of the coils extending between the top pole and the shared pole.
摘要翻译： 公开了一种用于形成具有空气轴承表面并且包括基本平坦的顶极和共享极的垂直磁读/写头的方法。 这些步骤包括形成顶极，共享极和轭，其中顶极和共享极通过轭向远离空气支承表面连接。 形成导电线圈，其缠绕在顶极周围并且定位成与空气支承表面相邻，其中线圈的下部在顶极和共享极之间延伸。
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6.发明授权公开(公告)号：US06818330B2
公开(公告)日：2004-11-16
申请号：US09939190
申请日：2001-08-24
IPC分类号： G11B566
CPC分类号： G11B5/667 , G11B5/012 , G11B5/03 , G11B5/66 , G11B5/74 , G11B2005/0029 , Y10S428/90 , Y10T428/24975 , Y10T428/265
摘要： A perpendicular magnetic recording medium with antiferromagnetic coupling in a soft magnetic underlayer. The soft magnetic underlayer includes a first magnetic soft layer, a first interface layer on the first magnetic soft layer, a second magnetic soft layer, a second interface layer on the second magnetic soft layer, and a non-magnetic coupling layer between the first interface layer and the second interface layer. The first and second magnetic soft layers are antiferromagnetically exchange coupled to one another through the non-magnetic coupling layer, wherein the first and second interface layers increase the exchange coupling between the first and second magnetic soft layers.
摘要翻译： 在软磁性底层中具有反铁磁耦合的垂直磁记录介质。 软磁性底层包括第一磁性软层，第一磁性软层上的第一界面层，第二磁性软层，第二磁性软层上的第二界面层，以及第一界面之间的非磁性耦合层 层和第二界面层。 第一和第二磁性软层通过非磁性耦合层彼此反铁磁交换耦合，其中第一和第二界面层增加第一和第二磁性软层之间的交换耦合。
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7.发明授权Perpendicular recording head defining the trackwidth by material deposition thickness 失效垂直记录头通过材料沉积厚度来定义轨道宽度公开(公告)号：US06560069B1
公开(公告)日：2003-05-06
申请号：US09726157
申请日：2000-11-29
申请人： Dmitri Litvinov , Sakhrat Khizroev
发明人： Dmitri Litvinov , Sakhrat Khizroev
IPC分类号： G11B5147
CPC分类号： G11B5/1278 , G11B5/4886
摘要： A perpendicular recording head for use with magnetic recording medium has an improved structure permitting an unusually narrow trackwidth to be defined by a simple, cost-efficient manufacturing process. The main pole and opposing pole of the recording head are deposited on the side of the slider, so that the trackwidth is controlled by the thickness of material deposited to form the main pole. The dimension of the main pole along the direction of the track is not critical for permitting a recording head of the present invention to record at high densities. The opposing pole may be located in front of, to the side of, or behind the main pole.
摘要翻译： 用于磁记录介质的垂直记录头具有改进的结构，允许通过简单的，成本有效的制造过程来定义非常窄的轨道宽度。 记录头的主极和相对极沉积在滑块的侧面，使得轨道宽度由沉积以形成主极的材料的厚度控制。 沿着轨道方向的主极的尺寸对于允许本发明的记录头以高密度记录是不重要的。 相对的杆可以位于主杆的前面，侧面或后面。
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8.发明授权Perpendicular magnetic recording media with reduced-noise soft magnetic underlayer 有权垂直磁记录介质，具有降低噪声的软磁底层公开(公告)号：US06531202B1
公开(公告)日：2003-03-11
申请号：US09724112
申请日：2000-11-28
IPC分类号： G11B566
CPC分类号： G11B5/667 , G11B5/62 , Y10S428/90 , Y10T428/12465
摘要： The present invention provides perpendicular recording media having a soft magnetic underlayer and magnetic regions which generate an external magnetic field in the soft magnetic underlayer. The soft magnetic underlayer is brought into a substantially single-domain state by the magnetic field, thereby reducing or eliminating unwanted noise in the soft underlayer. In a preferred embodiment, the recording medium includes a ring-shaped soft magnetic underlayer positioned between concentric ring-shaped magnetic regions.
摘要翻译： 本发明提供了具有软磁性底层和在软磁性底层中产生外部磁场的磁性区域的垂直记录介质。 软磁性底层通过磁场进入基本单畴状态，从而减少或消除软底层中的不必要的噪声。 在优选实施例中，记录介质包括位于同心环形磁区之间的环形软磁性底层。
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公开(公告)号：US06884328B2
公开(公告)日：2005-04-26
申请号：US10305456
申请日：2002-11-27
摘要： Magnetic films are annealed by radio frequency (RF) radiation. During the RF annealing process, the layers may be subjected to a magnetic field in order to control their anisotropy axes. The RF annealed layers are useful for applications such as longitudinal and perpendicular magnetic recording layers of magnetic data storage media.
摘要翻译： 磁性膜通过射频（RF）辐射退火。 在RF退火处理期间，可以对这些层进行磁场，以便控制其各向异性轴。 RF退火层可用于诸如磁数据存储介质的纵向和垂直磁记录层的应用。
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10.发明授权公开(公告)号：US06660357B1
公开(公告)日：2003-12-09
申请号：US09776061
申请日：2001-02-02
IPC分类号： G11B566
CPC分类号： G11B5/667 , G11B5/66 , Y10S428/90 , Y10T428/12465 , Y10T428/265
摘要： Magnetic recording media having a biased soft magnetic underlayer are disclosed. The soft magnetic underlayer includes at least two soft magnetic layers separated by a thin non-magnetic layer. Magnetostatic coupling between the soft magnetic layers causes the magnetizations in the layer to be anti-parallel. The biased soft magnetic underlayer is brought into a substantially single-domain state, thereby reducing or eliminating unwanted noise in the soft underlayer. In a preferred embodiment, the recording media includes a perpendicular magnetic recording disk.
摘要翻译： 公开了具有偏置软磁性底层的磁记录介质。 软磁性底层包括由薄的非磁性层隔开的至少两个软磁性层。 软磁层之间的静电耦合使得该层中的磁化反平行。 偏置的软磁性底层进入基本单畴状态，从而减少或消除软底层中的不必要的噪声。 在优选实施例中，记录介质包括垂直磁记录盘。
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