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公开(公告)号：US09431047B1
公开(公告)日：2016-08-30
申请号：US13927007
申请日：2013-06-25
发明人： Rongfu Xiao
IPC分类号： G11B5/852
CPC分类号： G11B5/852 , G11B5/3909 , G11B5/3912 , G11B2005/3996
摘要： A method provides a magnetic transducer including a first shield, a read sensor, and a second shield. The read sensor is between the first shield and the second shield. The read sensor has at least one pinned layer aligned with a sensor pinning direction. Providing the second shield includes depositing at least one of a first ferromagnetic layer, a second ferromagnetic and a pinning layer in the presence of a first magnetic field in a first direction non-orthogonal and non-parallel to the sensor pinning direction. A nonmagnetic spacer layer is between the first ferromagnetic layer and the second ferromagnetic layer. The pinning layer is adjacent to the second ferromagnetic layer. The first ferromagnetic layer is between the read sensor and the nonmagnetic spacer layer. The first ferromagnetic layer is coupled antiparallel with the second ferromagnetic layer.
摘要翻译： 一种方法提供包括第一屏蔽，读取传感器和第二屏蔽的磁换能器。 读取传感器位于第一屏蔽和第二屏蔽之间。 读取传感器具有与传感器固定方向对准的至少一个固定层。 提供第二屏蔽包括在第一方向存在第一方向上非正交并且不平行于传感器钉扎方向沉积第一铁磁层，第二铁磁体和钉扎层中的至少一个。 非磁性间隔层位于第一铁磁层和第二铁磁层之间。 钉扎层与第二铁磁层相邻。 第一铁磁层位于读取传感器和非磁性间隔层之间。 第一铁磁层与第二铁磁层反平行地耦合。
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公开(公告)号：US20140272181A1
公开(公告)日：2014-09-18
申请号：US13829755
申请日：2013-03-14
IPC分类号： G11B5/84
CPC分类号： G11B5/852
摘要： In one embodiment, a system for treating a magnetic layer includes an ion generating apparatus for directing an ion beam to the substrate and a magnetic alignment apparatus downstream of the ion generating apparatus and proximate to the substrate and operative to generate a magnetic field that intercepts the substrate in an out of plane orientation with respect to a plane of the substrate. The magnetic alignment apparatus and ion generating apparatus generate a process region in which the ion beam and magnetic field overlap.
摘要翻译： 在一个实施例中，用于处理磁性层的系统包括用于将离子束引导到衬底的离子产生装置和在离子产生装置的下游并靠近衬底的磁性取向装置，并且可操作地产生一个磁场， 衬底相对于衬底的平面在面外取向。 磁对准装置和离子产生装置产生离子束和磁场重叠的处理区域。
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3.发明授权公开(公告)号：US08597723B1
公开(公告)日：2013-12-03
申请号：US12987975
申请日：2011-01-10
IPC分类号： G11B5/64
摘要： A perpendicular magnetic recording disk having a single domain exchange-coupled laminated soft magnetic underlayer (SUL) is disclosed. The SUL is a combination synthetic anti-parallel coupled SUL structure, which has the product (Mst) of saturation magnetization and film thickness of the middle ferromagnetic layer less than the sum of the Mst of the bottom and top ferromagnetic layers. Subjected to a post radial field reset process, this SUL provides single domain state. Moreover, both robustness of stray fields and low permeability are obtained while keeping excellent corrosion resistance and cost effective manufacturability.
摘要翻译： 公开了具有单畴交换耦合层叠软磁性底层（SUL）的垂直磁记录盘。 SUL是合成反并联耦合SUL结构，其具有饱和磁化的产物（Mst）和中间铁磁层的膜厚小于底部和顶部铁磁层的Mst之和。 受到后径向场复位过程的影响，该SUL提供单域状态。 此外，在保持优异的耐腐蚀性和成本有效的可制造性的同时获得杂散场的鲁棒性和低渗透性。
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4.发明授权Method and apparatus for formation of oriented magnetic films for magnetic recording media 有权用于形成用于磁记录介质的定向磁膜的方法和装置公开(公告)号：US08591710B2
公开(公告)日：2013-11-26
申请号：US11142478
申请日：2005-06-02
IPC分类号： C23C14/34
CPC分类号： C23C14/568 , G11B5/656 , G11B5/667 , G11B5/85 , G11B5/852
摘要： A method of forming a layer of a magnetic material with radially oriented magnetic anisotropy, comprising sequential steps of providing a circular, annular disk-shaped substrate having an inner diameter and an outer diameter, forming a layer of a magnetic material with non-radially oriented magnetic anisotropy over at least one surface of the substrate, and re-orienting the magnetic anisotropy in a radial direction. Preferably, the re-orientation is performed magnetically and the radially oriented layer serves as a magnetically soft underlayer (SUL) of a magnetic recording medium. Also disclosed is a multi-chamber apparatus for performing the disclosed process.
摘要翻译： 一种形成具有径向取向的磁各向异性的磁性材料层的方法，包括提供具有内径和外径的圆形环形盘形基底的顺序步骤，形成具有非径向定向的磁性材料层 在基板的至少一个表面上的磁各向异性，并且在径向方向上重新定向磁各向异性。 优选地，重新取向是磁性地进行的，并且径向取向层用作磁记录介质的磁软底层（SUL）。 还公开了用于执行所公开的处理的多室装置。
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公开(公告)号：US20110032638A1
公开(公告)日：2011-02-10
申请号：US12907943
申请日：2010-10-19
申请人： Reiko Arai , Kiwamu Tanahashi , Yoshinori Honda , Mineaki Kodama
发明人： Reiko Arai , Kiwamu Tanahashi , Yoshinori Honda , Mineaki Kodama
摘要： Embodiments of the invention provide a perpendicular magnetic recording medium improved for fly ability, high in read signal quality, and capable of suppressing magnetic decay of recorded magnetization to be caused by stray fields. In one embodiment, a perpendicular recording layer is formed over a substrate with a soft magnetic underlayer therebetween, then an amorphous or nano-crystalline layer is formed between the substrate and the soft magnetic underlayer. The soft magnetic underlayer includes first and second amorphous soft magnetic layers, as well as a nonmagnetic layer formed between those first and second amorphous soft magnetic layers. The first and second amorphous soft magnetic layers are given uniaxial anisotropy in the radial direction of the substrate respectively and coupled with each other antiferromagnetically.
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6.发明授权Longitudinal patterned media with circumferential anisotropy for ultra-high density magnetic recording 有权具有圆周各向异性的纵向图案介质，用于超高密度磁记录公开(公告)号：US07713591B2
公开(公告)日：2010-05-11
申请号：US11209275
申请日：2005-08-22
申请人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
发明人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
摘要： An apparatus and method is disclosed for orienting the magnetic anisotropy of longitudinal patterned magnetic recording media. A disk-shaped longitudinal granular magnetic recording medium is provided having a high orientation ratio in the circumferential direction. The medium is then patterned to form a uniform array of magnetic islands. The magnetic islands are then irradiated with ions to increase the magnetic exchange coupling between the grains of each island. This aligns the axes of magnetic anisotropy of the individual grains with the average axis of magnetic anisotropy of the grains, thereby aligning the magnetic anisotropy of each island along the circumferential direction.
摘要翻译： 公开了用于定向纵向图案化磁记录介质的磁各向异性的装置和方法。 在圆周方向上具有高取向比的圆盘状纵向粒状磁记录介质。 然后将介质图案化以形成均匀的磁岛阵列。 然后用离子照射磁岛以增加每个岛的颗粒之间的磁交换耦合。 使各晶粒的磁各向异性轴与晶粒的磁各向异性的平均轴对齐，从而沿着圆周方向对准各岛的磁各向异性。
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7.发明申请Longitudinal patterned media with circumferential anisotropy for ultra-high density magnetic recording 有权具有圆周各向异性的纵向图案介质，用于超高密度磁记录公开(公告)号：US20070042229A1
公开(公告)日：2007-02-22
申请号：US11209275
申请日：2005-08-22
申请人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
发明人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
摘要： An apparatus and method is disclosed for orienting the magnetic anisotropy of longitudinal patterned magnetic recording media. A disk-shaped longitudinal granular magnetic recording medium is provided having a high orientation ratio in the circumferential direction. The medium is then patterned to form a uniform array of magnetic islands. The magnetic islands are then irradiated with ions to increase the magnetic exchange coupling between the grains of each island. This aligns the axes of magnetic anisotropy of the individual grains with the average axis of magnetic anisotropy of the grains, thereby aligning the magnetic anisotropy of each island along the circumferential direction.
摘要翻译： 公开了用于定向纵向图案化磁记录介质的磁各向异性的装置和方法。 在圆周方向上具有高取向比的圆盘状纵向粒状磁记录介质。 然后将介质图案化以形成均匀的磁岛阵列。 然后用离子照射磁岛以增加每个岛的颗粒之间的磁交换耦合。 使各晶粒的磁各向异性轴与晶粒的磁各向异性的平均轴对齐，从而沿着圆周方向对准各岛的磁各向异性。
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公开(公告)号：US3023166A
公开(公告)日：1962-02-27
申请号：US67622157
申请日：1957-08-05
申请人： PHILIPS CORP
发明人： SIMON DUINKER , LEOPOLDUS STUIJTS ANDREAS , JOHANNES WIJN HENRICUS PETRUS , KLAAS WESTMIJZE WILLEM
IPC分类号： G11B5/852
CPC分类号： G11B5/852 , Y10S428/90 , Y10T428/2982
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公开(公告)号：US09984713B1
公开(公告)日：2018-05-29
申请号：US15615782
申请日：2017-06-06
发明人： Antonio Javier Zambano , Connie Chunling Liu , Xiaoding Ma , ZhaoHui Fan , Jerry Kueirweei Chour
CPC分类号： G11B5/716 , G11B5/65 , G11B5/656 , G11B5/66 , G11B5/70621 , G11B5/70626 , G11B5/712 , G11B5/7325 , G11B5/82 , G11B5/852
摘要： An apparatus is disclosed. The apparatus includes a storage layer, a first write layer, and a second write layer. The first write layer is disposed over the storage layer. The second write layer is disposed over the first write layer. The anisotropy field and magnetization associated with the second write layer at writing temperature is greater than anisotropy field and magnetization associated with the first write layer at the writing temperature.
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公开(公告)号：US20080074783A1
公开(公告)日：2008-03-27
申请号：US11889165
申请日：2007-08-09
申请人： Ken Ohashi
发明人： Ken Ohashi
CPC分类号： H01F7/0247 , G11B5/852 , H01F1/055 , H01F3/14 , H01F7/0205 , H01F13/00
摘要： In a magnetic circuit for providing magnetic anisotropy in the in-plane radial direction of a soft magnetic under layer, magnets for perpendicular magnetization are respectively provide on the north and south poles of a magnet for horizontal magnetization. When magnetic circuits configured thus are stacked in a plurality of stages, a magnetic field (air-gap magnetic field) formed in a gap between the magnetic circuits is superimposed by magnetic fields from the magnets for perpendicular magnetization as well as a magnetic field from the magnet for horizontal magnetization (in-plane magnetization). The pole faces of the magnets for perpendicular magnetization are disposed closer to the gap between the magnetic circuits, so that a stronger magnetic field can be formed in the gap.
摘要翻译： 在用于在软磁下层的面内径向方向上提供磁各向异性的磁路中，用于垂直磁化的磁体分别在用于水平磁化的磁体的北极和南极上提供。 当由此构成的磁路以多级堆叠时，形成在磁路之间的间隙中的磁场（气隙磁场）由用于垂直磁化的磁体的磁场以及来自磁场的磁场叠加 磁体用于水平磁化（平面内磁化）。 用于垂直磁化的磁体的极面设置成更靠近磁路之间的间隙，从而可以在间隙中形成更强的磁场。
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