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公开(公告)号：US08993073B2
公开(公告)日：2015-03-31
申请号：US12172438
申请日：2008-07-14
Applicant: Weilu Xu , Miaogen Lu , Mariana R. Munteanu , Michael Z. Wu , Shanghsien Alex Rou , Steve Kuo-Hsing Hwang , Ed Yen
Inventor： Weilu Xu , Miaogen Lu , Mariana R. Munteanu , Michael Z. Wu , Shanghsien Alex Rou , Steve Kuo-Hsing Hwang , Ed 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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2.发明申请MAGNETIC RECORDING MEDIA HAVING FIVE ELEMENT ALLOY DEPOSITED USING PULSED DIRECT CURRENT SPUTTERING 审中-公开具有使用脉冲直接电流溅出的五个元件合金的磁记录介质公开(公告)号：US20090211898A1
公开(公告)日：2009-08-27
申请号：US12391938
申请日：2009-02-24
Applicant: Charles Changqing Chen , Thanh Thien Ha , Abebe Hailu , Taesun Ernest Kim , Mariana Rodica Munteanu , Steve Kuo-Hsing Hwang
Inventor： Charles Changqing Chen , Thanh Thien Ha , Abebe Hailu , Taesun Ernest Kim , Mariana Rodica Munteanu , Steve Kuo-Hsing Hwang
IPC: C23C14/34
CPC classification number: G11B5/7325 , G11B5/656 , G11B5/66 , G11B5/851
Abstract: CoCrPtB is a conventional material used in some of the layers of a thin film magnetic media structure used for recording data in data storage devices such as hard drives. Typically the CoCrPtB layers used for magnetic media have high Cr and low B in bottom magnetic layers and low Cr and high B in top magnetic layers. In accordance with one embodiment of this invention and to improve media electrical performance, fifth elements, such as Ta, Nb and Hf, etc. were added to the CoCrPtB materials, resulting in CoCrPtB-X, to enhance the grain segregation. The five element CoCrPtB-X layers were deposited using a pulsed direct current sputter technique instead of conventional direct current sputtering techniques. The resulting magnetic media structure having CoCrPtB-X alloy layers exhibits an increase in coercivity Hc and improvement in recording performance.
Abstract translation: CoCrPtB是用于在诸如硬盘驱动器的数据存储设备中记录数据的薄膜磁性介质结构的一些层中的常规材料。 通常用于磁性介质的CoCrPtB层在底部磁性层中具有高Cr和低B，在顶部磁性层中具有低Cr和高B。 根据本发明的一个实施例，为了改善介质电性能，向CoCrPtB材料中添加了诸如Ta，Nb和Hf等第五元素，产生CoCrPtB-X，以增强晶粒分离。 使用脉冲直流溅射技术代替传统的直流溅射技术沉积五个元素CoCrPtB-X层。 所得到的具有CoCrPtB-X合金层的磁性介质结构表现出矫顽力Hc的提高和记录性能的提高。
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3.发明授权Magnetic recording media having five element alloy deposited using pulsed direct current sputtering 有权使用脉冲直流溅射沉积五元素合金的磁记录介质公开(公告)号：US07504166B2
公开(公告)日：2009-03-17
申请号：US10856209
申请日：2004-05-27
Applicant: Charles Changqing Chen , Thanh Thien Ha , Abebe Hailu , Taesun Ernest Kim , Mariana Rodica Munteanu , Steve Kuo-Hsing Hwang
Inventor： Charles Changqing Chen , Thanh Thien Ha , Abebe Hailu , Taesun Ernest Kim , Mariana Rodica Munteanu , Steve Kuo-Hsing Hwang
IPC: G11B5/66
CPC classification number: G11B5/7325 , G11B5/656 , G11B5/66 , G11B5/851
Abstract: CoCrPtB is a conventional material used in some of the layers of a thin film magnetic media structure used for recording data in data storage devices such as hard drives. Typically the CoCrPtB layers used for magnetic media have high Cr and low B in bottom magnetic layers and low Cr and high B in top magnetic layers. In accordance with one embodiment of this invention and to improve media electrical performance, fifth elements, such as Ta, Nb and Hf, etc. were added to the CoCrPtB materials, resulting in CoCrPtB—X, to enhance the grain segregation. The five element CoCrPtB—X layers were deposited using a pulsed direct current sputter technique instead of conventional direct current sputtering techniques. The resulting magnetic media structure having CoCrPtB—X alloy layers exhibits an increase in coercivity Hc and improvement in recording performance.
Abstract translation: CoCrPtB是用于在诸如硬盘驱动器的数据存储设备中记录数据的薄膜磁性介质结构的一些层中的常规材料。 通常用于磁性介质的CoCrPtB层在底部磁性层中具有高Cr和低B，在顶部磁性层中具有低Cr和高B。 根据本发明的一个实施例，为了改善介质电性能，向CoCrPtB材料中添加了诸如Ta，Nb和Hf等第五元素，产生CoCrPtB-X，以增强晶粒分离。 使用脉冲直流溅射技术代替传统的直流溅射技术沉积五个元素CoCrPtB-X层。 所得到的具有CoCrPtB-X合金层的磁性介质结构表现出矫顽力Hc的提高和记录性能的提高。
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4.发明申请HIGH DENSITY GRANULAR PERPENDICULAR RECORDING MEDIA FOR MECHANICAL RELIABILITY AND CORROSION RESISTANCE 有权高密度颗粒状记录介质，用于机械可靠性和耐腐蚀性公开(公告)号：US20100007989A1
公开(公告)日：2010-01-14
申请号：US12172438
申请日：2008-07-14
Applicant: Weilu Xu , Miaogen Lu , Mariana R. Munteanu , Michael Z. Wu , Shanghsien Alex Rou , Steve Kuo-Hsing Hwang , Ed Yen
Inventor： Weilu Xu , Miaogen Lu , Mariana R. Munteanu , Michael Z. Wu , Shanghsien Alex Rou , Steve Kuo-Hsing Hwang , Ed 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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