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1.发明授权High density granular perpendicular recording media for mechanical reliability and corrosion resistance 有权高密度颗粒垂直记录介质，用于机械可靠性和耐腐蚀性公开(公告)号：US09418693B2
公开(公告)日：2016-08-16
申请号：US14672800
申请日：2015-03-30
Applicant: Seagate Technology LLC
Inventor： Weilu Xu , Miaogen Lu , Mariana Rodica Munteanu , Michael Z. Wu , Shanghsien A. Rou , Steve Kuo-Hsing Hwang , Edward T. Yen
CPC classification number: G11B5/65 , G11B5/667 , G11B5/7325 , G11B5/851
Abstract: An embodiment of the invention relates to a perpendicular magnetic recording medium comprising (1) a substrate, (2) an interlayer comprising hexagonal columns and (3) a magnetic layer, wherein the magnetic layer is deposited applying a bias voltage to the substrate such that the magnetic layer comprises magnetic grains having substantially no sub-grains within the magnetic layer, and the magnetic layer has perpendicular magnetic anisotropy.
Abstract translation: 本发明的一个实施例涉及一种垂直磁记录介质，其包括（1）基板，（2）包括六边形列的中间层和（3）磁性层，其中磁性层被沉积到偏压基板上，使得 磁性层包括在磁性层内基本上没有亚晶粒的磁性颗粒，并且磁性层具有垂直的磁各向异性。
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公开(公告)号：US20150015991A1
公开(公告)日：2015-01-15
申请号：US14055802
申请日：2013-10-16
Applicant: Seagate Technology LLC
Inventor： Stephen Keith McLaurin , Weilu Xu
IPC: G11B5/596
CPC classification number: G11B5/746 , G11B5/855 , G11B17/028
Abstract: The embodiments disclose an orientation control bias point coupled to a magnetic index mark and having a bias point offset set at predetermined coordinates configured to substantially prevent concentricity run-out.
Abstract translation: 实施例公开了一种耦合到磁性指示标记并且具有设置在预定的坐标上的偏置点偏移的取向控制偏置点，其被配置为基本上防止同心度跳动。
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Patent Agency Ranking
公开(公告)号：US20150015353A1
公开(公告)日：2015-01-15
申请号：US14055805
申请日：2013-10-16
Applicant: Seagate Technology LLC
Inventor： Stephen Keith McLaurin , Weilu Xu
IPC: H01F13/00
CPC classification number: G11B5/024 , G11B5/012 , G11B5/02 , G11B5/0245 , G11B5/746
Abstract: The embodiments disclose an alternating current (AC) erase process configured to cancel out existing polarity of stack magnetic features on both sides of the stack and an AC reset process configured to initialize the polarity of the device stack magnetic features of both sides of a stack configured to create a uniform polarity.
Abstract translation: 实施例公开了一种交流（AC）擦除过程，其被配置为抵消堆叠两侧的堆叠磁特征的现有极性，并且AC复位过程被配置为初始化配置的堆叠的两侧的器件堆叠磁特征的极性 以产生均匀的极性。
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公开(公告)号：US20140186658A1
公开(公告)日：2014-07-03
申请号：US14159362
申请日：2014-01-20
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Shoutao Wang , Weilu Xu , Chung-hee Chang , Xiaoguang Ma , Mark Johnson , Abebe Hailu , Charles Chen
CPC classification number: G11B5/84 , G11B5/732 , G11B5/7325 , G11B5/738
Abstract: An apparatus and method are provided for improving perpendicular magnetic recording media. The present invention provides media, and a method of fabricating media in a cost-effective manner, with a reduced ruthenium (Ru) content interlayer structure, while meeting media performance requirements. A perpendicular magnetic recording medium is provided comprising a non-magnetic substrate having a surface, and a layer stack situated on the substrate surface. The layer stack comprises, in overlying sequence from the substrate surface a magnetically soft underlayer; an amorphous or crystalline, non-magnetic seed layer; an interlayer structure for crystallographically orienting a layer of a perpendicular magnetic recording material situated on the underlayer; and at least one crystallographically oriented, magnetically hard, perpendicular magnetic recording layer situated on the interlayer structure. The interlayer structure is a stacked structure comprising, in overlying sequence: a chromium alloy situated on the seed layer; and an upper interlayer situated on the chromium alloy.
Abstract translation: 提供了用于改进垂直磁记录介质的装置和方法。 本发明在满足介质性能要求的同时，提供了具有降低的钌（Ru）含量层间结构的以成本有效的方式制造介质的介质和方法。 提供了包括具有表面的非磁性基底和位于基底表面上的层叠的垂直磁记录介质。 层叠体以从衬底表面的叠加顺序包括一个软磁软底层; 无定形或结晶的非磁性种子层; 用于晶体取向位于底层上的垂直磁记录材料层的层间结构; 以及位于层间结构上的至少一个晶体取向的磁性硬的垂直磁记录层。 层间结构是层叠结构，其叠加顺序为：位于种子层上的铬合金; 和位于铬合金上的上层。
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公开(公告)号：US09190095B2
公开(公告)日：2015-11-17
申请号：US14159362
申请日：2014-01-20
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Shoutao Wang , Weilu Xu , Chung-hee Chang , Xiaoguang Ma , Mark Johnson , Abebe Hailu , Charles Chen
CPC classification number: G11B5/84 , G11B5/732 , G11B5/7325 , G11B5/738
Abstract: An apparatus and method are provided for improving perpendicular magnetic recording media. The present invention provides media, and a method of fabricating media in a cost-effective manner, with a reduced ruthenium (Ru) content interlayer structure, while meeting media performance requirements. A perpendicular magnetic recording medium is provided comprising a non-magnetic substrate having a surface, and a layer stack situated on the substrate surface. The layer stack comprises, in overlying sequence from the substrate surface a magnetically soft underlayer; an amorphous or crystalline, non-magnetic seed layer; an interlayer structure for crystallographically orienting a layer of a perpendicular magnetic recording material situated on the underlayer; and at least one crystallographically oriented, magnetically hard, perpendicular magnetic recording layer situated on the interlayer structure. The interlayer structure is a stacked structure comprising, in overlying sequence: a chromium alloy situated on the seed layer; and an upper interlayer situated on the chromium alloy.
Abstract translation: 提供了用于改进垂直磁记录介质的装置和方法。 本发明在满足介质性能要求的同时，提供了具有降低的钌（Ru）含量层间结构的以成本有效的方式制造介质的介质和方法。 提供了包括具有表面的非磁性基底和位于基底表面上的层叠的垂直磁记录介质。 层叠体以从衬底表面的叠加顺序包括一个软磁软底层; 无定形或结晶的非磁性种子层; 用于晶体取向位于底层上的垂直磁记录材料层的层间结构; 以及位于层间结构上的至少一个晶体取向的磁性硬的垂直磁记录层。 层间结构是层叠结构，其叠加顺序为：位于种子层上的铬合金; 和位于铬合金上的上层。
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6.发明申请High Density Granular Perpendicular Recording Media for Mechanical Reliability and Corrosion Resistance 审中-公开高密度颗粒垂直记录介质，用于机械可靠性和耐腐蚀性公开(公告)号：US20150279400A1
公开(公告)日：2015-10-01
申请号：US14672800
申请日：2015-03-30
Applicant: Seagate Technology LLC
Inventor： Weilu Xu , Miaogen Lu , Mariana Rodica Munteanu , Michael Z. Wu , Shanghsien A. Rou , Steve Kuo-Hsing Hwang , Edward T. Yen
CPC classification number: G11B5/65 , G11B5/667 , G11B5/7325 , G11B5/851
Abstract: An embodiment of the invention relates to a perpendicular magnetic recording medium comprising (1) a substrate, (2) an interlayer comprising hexagonal columns and (3) a magnetic layer, wherein the magnetic layer is deposited applying a bias voltage to the substrate such that the magnetic layer comprises magnetic grains having substantially no sub-grains within the magnetic layer, and the magnetic layer has perpendicular magnetic anisotropy.
Abstract translation: 本发明的一个实施例涉及一种垂直磁记录介质，其包括（1）基板，（2）包括六边形列的中间层和（3）磁性层，其中磁性层被沉积到偏压基板上，使得 磁性层包括在磁性层内基本上没有亚晶粒的磁性颗粒，并且磁性层具有垂直的磁各向异性。
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公开(公告)号：US20130280556A1
公开(公告)日：2013-10-24
申请号：US13919983
申请日：2013-06-17
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Li Tang , Weilu Xu , Youfeng Zheng , Shanghsien Rou , Connie Chunling Liu , Jianhua Xue , Li-Lien Lee , Thomas P. Nolan
CPC classification number: G11B5/3153 , G11B5/1276 , G11B5/1278 , G11B5/65 , G11B5/66 , G11B5/667 , G11B5/7325 , Y10T428/115
Abstract: Provided herein, is an apparatus that includes a nonmagnetic substrate having a surface; and a plurality of overlying thin film layers forming a layer stack on the substrate surface. The layer stack includes a magnetically hard perpendicular magnetic recording layer structure and an underlying soft magnetic underlayer (SUL), wherein the sum of a magnetic thickness of the layer stack is a magnetic thickness of up to about 2 memu/cm̂2.
Abstract translation: 本文提供了一种包括具有表面的非磁性基板的装置; 以及在衬底表面上形成层叠的多个上覆薄膜层。 层叠层包括磁性硬的垂直磁记录层结构和底层软磁性底层（SUL），其中层叠层的磁性厚度之和是至多约2emu / cm 2的磁性厚度。
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