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1.发明授权公开(公告)号：US08202636B2
公开(公告)日：2012-06-19
申请号：US12317650
申请日：2008-12-23
申请人： Gunn Choe , Yoshihiro Ikeda , Mohammad T. Mirzamaani , Kai Tang , Jinliu Wang
发明人： Gunn Choe , Yoshihiro Ikeda , Mohammad T. Mirzamaani , Kai Tang , Jinliu Wang
IPC分类号： G11B5/66
CPC分类号： G11B5/66
摘要： A method is described for improving recording performance of a perpendicular media. The method includes controlling the anisotropy levels in different sublayers of the magnetic recording layers of the perpendicular media. Further, the different sublayers thicknesses can be altered to match the media to a particular head.
摘要翻译： 描述了一种用于改善垂直介质的记录性能的方法。 该方法包括控制垂直介质的磁记录层的不同子层中的各向异性水平。 此外，可以改变不同的子层厚度以将介质与特定头部匹配。
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2.发明申请公开(公告)号：US20100159284A1
公开(公告)日：2010-06-24
申请号：US12317650
申请日：2008-12-23
申请人： Gunn Choe , Yoshihiro Ikeda , Mohammad T. Mirzamaani , Kai Tang , Jinliu Wang
发明人： Gunn Choe , Yoshihiro Ikeda , Mohammad T. Mirzamaani , Kai Tang , Jinliu Wang
IPC分类号： G11B5/65
CPC分类号： G11B5/66
摘要： A method is described for improving recording performance of a perpendicular media. The method includes controlling the anisotropy levels in different sublayers of the magnetic recording layers of the perpendicular media. Further, the different sublayers thicknesses can be altered to match the media to a particular head.
摘要翻译： 描述了一种用于改善垂直介质的记录性能的方法。 该方法包括控制垂直介质的磁记录层的不同子层中的各向异性水平。 此外，可以改变不同的子层厚度以将介质与特定头部匹配。
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3.发明授权Perpendicular recording media with sublayers of oxide dopant magnetic materials 有权具有氧化物掺杂剂磁性材料子层的垂直记录介质公开(公告)号：US08168309B2
公开(公告)日：2012-05-01
申请号：US12540397
申请日：2009-08-13
申请人： Gunn Choe , Mohammad T. Mirzamaani , Kai Tang , Jinliu Wang
发明人： Gunn Choe , Mohammad T. Mirzamaani , Kai Tang , Jinliu Wang
摘要： Perpendicular recording media with sublayers of dual oxide dopant magnetic materials are disclosed. The magnetic layer may comprise multiple sublayers of magnetic materials. In each sublayer, dual oxide dopants are incorporated. The compositions of the sublayers can be the same or different depending on the application. The magnetic layer may be deposited using a target comprising a mixture of CoPtCrB and dual oxides as dopants. The layer deposited with such targets can be the entire magnetic layer or a sublayer.
摘要翻译： 公开了具有双重氧化物掺杂剂磁性材料的子层的垂直记录介质。 磁性层可以包括多个磁性材料的子层。 在每个子层中，掺入双重氧化物掺杂剂。 根据应用，子层的组成可以相同或不同。 可以使用包含CoPtCrB和双重氧化物的混合物作为掺杂剂的靶沉积磁性层。 沉积有这样的靶的层可以是整个磁性层或子层。
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4.发明申请PERPENDICULAR RECORDING MEDIA WITH SUBLAYERS OF OXIDE DOPANT MAGNETIC MATERIALS 有权具有氧化物磁性材料层的全面记录介质公开(公告)号：US20110038079A1
公开(公告)日：2011-02-17
申请号：US12540397
申请日：2009-08-13
申请人： Gunn Choe , Mohammad T. Mirzamaani , Kai Tang , Jinliu Wang
发明人： Gunn Choe , Mohammad T. Mirzamaani , Kai Tang , Jinliu Wang
摘要： Perpendicular recording media with sublayers of dual oxide dopant magnetic materials are disclosed. The magnetic layer may comprise multiple sublayers of magnetic materials. In each sublayer, dual oxide dopants are incorporated. The compositions of the sublayers can be the same or different depending on the application. The magnetic layer may be deposited using a target comprising a mixture of CoPtCrB and dual oxides as dopants. The layer deposited with such targets can be the entire magnetic layer or a sublayer.
摘要翻译： 公开了具有双重氧化物掺杂剂磁性材料的子层的垂直记录介质。 磁性层可以包括多个磁性材料的子层。 在每个子层中，掺入双重氧化物掺杂剂。 根据应用，子层的组成可以相同或不同。 可以使用包含CoPtCrB和双重氧化物的混合物作为掺杂剂的靶沉积磁性层。 沉积有这样的靶的层可以是整个磁性层或子层。
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5.发明授权Methods and apparatus to fabricate soft magnetic film with preferred uniaxial anisotropy for perpendicular recording 有权用于垂直记录制备具有优选的单轴各向异性的软磁膜的方法和装置公开(公告)号：US08252367B2
公开(公告)日：2012-08-28
申请号：US11960006
申请日：2007-12-19
CPC分类号： H01F41/32 , B82Y25/00 , G11B5/667 , G11B5/8404 , H01F10/3268
摘要： Soft magnetic film fabricated with preferred uniaxial anisotropy for perpendicular recording. One type of cathode design has a field direction that is parallel to the direction of the Hex of the second SUL with a magnetically-pinned first SUL. In addition, SUL structures having low AP exchange energy also are disclosed. The SUL structure combines the cathode field direction of the SUL2 with the pinned SUL1. The SUL1 is magnetically pinned to the pinning layer and the pinning direction is parallel to the direction of the cathode field applied during deposition of the SUL1. High Hc ferro-magnetic materials may be deposited onto a heated substrate that is magnetized along the radial direction by the cathode field. The pinning field may be higher than the cathode field, indicating that the cathode field during deposition of the SUL2 cannot disturb the magnetic state of the SUL1 pinned to pinning layer.
摘要翻译： 用于垂直记录的具有优选的单轴各向异性制造的软磁膜。 一种类型的阴极设计具有平行于具有磁性固定的第一SUL的第二SUL的Hex的方向的场方向。 此外，还公开了具有低AP交换能量的SUL结构。 SUL结构将SUL2的阴极场方向与固定SUL1相结合。 SUL1被磁性地固定到钉扎层，并且钉扎方向平行于在沉积SUL1期间施加的阴极场的方向。 高Hc铁磁材料可以沉积在被阴极场沿径向磁化的加热衬底上。 钉扎场可能高于阴极场，表明SUL2沉积期间的阴极场不能干扰固定到钉扎层的SUL1的磁状态。
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6.发明申请PERPENDICULAR MAGNETIC RECORDING MEDIUM HAVING A MULTI-LAYER INTERLAYER THAT INCLUDES BCC MATERIAL 有权具有包括BCC材料的多层中间层的全磁性记录介质公开(公告)号：US20080213630A1
公开(公告)日：2008-09-04
申请号：US11736428
申请日：2007-04-17
IPC分类号： G11B5/66
CPC分类号： G11B5/7325
摘要： Perpendicular magnetic recording media and methods of fabricating perpendicular magnetic recording media are described. The perpendicular magnetic recording medium of one embodiment includes a soft magnetic underlayer (SUL), an interlayer, and a perpendicular magnetic recording layer. The interlayer comprises a layer formed from a first material (e.g., NiWCr) having a face-centered-cubic (FCC) structure, a layer formed from a second material (e.g., Cr) having a body-centered-cubic (BCC) structure, and a layer formed from a third material (e.g., Ru) having a hexagonal-close-packed (HCP) structure.
摘要翻译： 描述垂直磁记录介质和制造垂直磁记录介质的方法。 一个实施例的垂直磁记录介质包括软磁性底层（SUL），中间层和垂直磁记录层。 中间层包括由具有面心立方（FCC）结构的第一材料（例如，NiWCr）形成的层，由具有体心立方（BCC）结构的第二材料（例如Cr）形成的层 ，以及由具有六方密堆积（HCP）结构的第三材料（例如Ru）形成的层。
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7.发明授权Perpendicular magnetic recording medium having a multi-layer interlayer that includes BCC material 有权具有包含BCC材料的多层中间层的垂直磁记录介质公开(公告)号：US07662492B2
公开(公告)日：2010-02-16
申请号：US11736428
申请日：2007-04-17
IPC分类号： G11B5/66
CPC分类号： G11B5/7325
摘要： Perpendicular magnetic recording media and methods of fabricating perpendicular magnetic recording media are described. The perpendicular magnetic recording medium of one embodiment includes a soft magnetic underlayer (SUL), an interlayer, and a perpendicular magnetic recording layer. The interlayer comprises a layer formed from a first material (e.g., NiWCr) having a face-centered-cubic (FCC) structure, a layer formed from a second material (e.g., Cr) having a body-centered-cubic (BCC) structure, and a layer formed from a third material (e.g., Ru) having a hexagonal-close-packed (HCP) structure.
摘要翻译： 描述垂直磁记录介质和制造垂直磁记录介质的方法。 一个实施例的垂直磁记录介质包括软磁性底层（SUL），中间层和垂直磁记录层。 中间层包括由具有面心立方（FCC）结构的第一材料（例如，NiWCr）形成的层，由具有体心立方（BCC）结构的第二材料（例如Cr）形成的层 ，以及由具有六方密堆积（HCP）结构的第三材料（例如Ru）形成的层。
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8.发明申请METHOD FOR MANUFACTURING A PERPENDICULAR MAGNETIC DATA RECORDING MEDIA HAVING A PSEUDO ONSET LAYER 审中-公开一种具有PSEUDO ONSET层的平滑磁记录记录介质的方法公开(公告)号：US20120064375A1
公开(公告)日：2012-03-15
申请号：US12882123
申请日：2010-09-14
申请人： Gunn Choe , Yoshihiro Ikeda
发明人： Gunn Choe , Yoshihiro Ikeda
CPC分类号： G11B5/8404 , C23C14/0021 , C23C14/08 , C23C14/185 , G11B5/66 , G11B5/7325
摘要： A method for manufacturing a magnetic media for perpendicular magnetic data recording. The method includes depositing a Ru layer in a pure oxygen atmosphere and then further depositing Ru in the presence of oxygen to form a thin pseudo onset layer. The pseudo onset layer can advantageously be depositing in the same deposition chamber and using the same target as that used to deposit the underlying Ru layer. This saves a great deal of manufacturing cost and complexity. The presence of the pseudo onset layer reduces grains size and increases grain separation in a high Ku magnetic layer deposited thereon, thereby increasing signal to noise ratio and decreasing magnetic core width (MCW).
摘要翻译： 用于垂直磁数据记录的磁介质的制造方法。 该方法包括在纯氧气氛中沉积Ru层，然后在氧的存在下进一步沉积Ru以形成薄的假起始层。 假起始层可以有利地沉积在相同的沉积室中并且使用与用于沉积下面的Ru层相同的靶。 这节省了大量的制造成本和复杂性。 伪起始层的存在减少了沉积在其上的高Ku磁性层中的晶粒尺寸并增加了晶粒分离，从而增加了信噪比并降低了磁芯宽度（MCW）。
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9.发明申请PERPENDICULAR MAGNETIC RECORDING MEDIA HAVING A DECOUPLED LOW ANISOTROPY OXIDE LAYER FOR WRITEABILITY ENHANCEMENT 审中-公开具有降低的低均分氧化物层的PERPENDICULAR MAGNETIC RECORDING MEDIA用于增加功能公开(公告)号：US20120141832A1
公开(公告)日：2012-06-07
申请号：US12960262
申请日：2010-12-03
申请人： Gunn Choe , Yoshihiro Ikeda
发明人： Gunn Choe , Yoshihiro Ikeda
CPC分类号： G11B5/7325 , G11B5/65 , G11B5/66
摘要： A magnetic media having a multi-layer magnetic oxide structure with an uppermost magnetic oxide layer having a very low magnetic anisotropy energy. The magnetic oxide structure includes at least three magnetic oxide layers. An upper most magnetic oxide layer structure has a magnetic anisotropy energy of less than 1×106 erg/cm3 and a saturation magnetization of greater than 300 emu/cm3. The magnetic oxide structure improves media magnetization in response to a magnetic field. The low anisotropy layer responds easily to a magnetic field. This magnetic response is then transferred to the underlying layers which have a higher magnetic anisotropy for improved robustness in maintaining magnetization over time and even in a high temperature environment.
摘要翻译： 具有多层磁性氧化物结构的磁性介质，具有极低的磁各向异性能的最上层的磁性氧化物层。 磁性氧化物结构包括至少三个磁性氧化物层。 最高磁性氧化物层结构的磁各向异性能量小于1×106erg / cm3，饱和磁化强度大于300emu / cm3。 磁性氧化物结构响应于磁场改善介质磁化。 低各向异性层容易响应于磁场。 然后将该磁响应转移到具有较高磁各向异性的下层，以改善随时间保持磁化强度的鲁棒性，甚至在高温环境中。
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10.发明申请公开(公告)号：US20090162573A1
公开(公告)日：2009-06-25
申请号：US11960006
申请日：2007-12-19
IPC分类号： H01F1/00
CPC分类号： H01F41/32 , B82Y25/00 , G11B5/667 , G11B5/8404 , H01F10/3268
摘要： Soft magnetic film fabricated with preferred uniaxial anisotropy for perpendicular recording. One type of cathode design has a field direction that is parallel to the direction of the Hex of the second SUL with a magnetically-pinned first SUL. In addition, SUL structures having low AP exchange energy also are disclosed. The SUL structure combines the cathode field direction of the SUL2 with the pinned SUL1. The SUL1 is magnetically pinned to the pinning layer and the pinning direction is parallel to the direction of the cathode field applied during deposition of the SUL1. High Hc ferro-magnetic materials may be deposited onto a heated substrate that is magnetized along the radial direction by the cathode field. The pinning field may be higher than the cathode field, indicating that the cathode field during deposition of the SUL2 cannot disturb the magnetic state of the SUL1 pinned to pinning layer.
摘要翻译： 用于垂直记录的具有优选的单轴各向异性制造的软磁膜。 一种类型的阴极设计具有平行于具有磁性固定的第一SUL的第二SUL的Hex的方向的场方向。 此外，还公开了具有低AP交换能量的SUL结构。 SUL结构将SUL2的阴极场方向与固定SUL1相结合。 SUL1被磁性地固定到钉扎层，并且钉扎方向平行于在沉积SUL1期间施加的阴极场的方向。 高Hc铁磁材料可以沉积在被阴极场沿径向磁化的加热衬底上。 钉扎场可能高于阴极场，表明SUL2沉积期间的阴极场不能干扰固定到钉扎层的SUL1的磁状态。
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