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21.发明授权Magnetic recording medium having three ferromagnetic layers with increasing intrinsic coercivity from the lower to the upper layer 失效具有三层铁磁层的磁记录介质，其具有从下层到上层增加的固有矫顽力公开(公告)号：US07180710B2
公开(公告)日：2007-02-20
申请号：US10853431
申请日：2004-05-24
申请人： Hoa Van Do , David Margulies , Hal J. Rosen , Natacha F. Supper
发明人： Hoa Van Do , David Margulies , Hal J. Rosen , Natacha F. Supper
IPC分类号： G11B5/66
摘要： A magnetic recording medium has a laminated magnetic structure with at least three magnetic layers, wherein the magnetic layers have decreasing intrinsic coercivity H0 with distance from the write head. The write field at the center of each magnetic layer is greater than that layer's H0. The magnetic layers have different compositions and/or thicknesses and thereby different values of H0. The alloys used in the middle and upper magnetic layers are relatively “high-moment” alloys that would not ordinarily be used in magnetic recording media because they have relatively low S0NR, but the overall S0NR of the laminated magnetic structure is improved because of the effect of lamination. The middle and upper magnetic layers can be made substantially thinner, which enables the magnetic layers to be located closer to the write head, thereby exposing each of the magnetic layers to a higher write field.
摘要翻译： 磁记录介质具有至少三个磁性层的层叠磁性结构，其中磁性层具有与写头距离更小的固有矫顽力H 0 0。 每个磁性层的中心处的写入场大于该层的H 0 0。 磁性层具有不同的组成和/或厚度，从而具有不同的H 0 O值。 在中上层磁性层中使用的合金是相对“高力矩”的合金，它们通常不会用于磁记录介质，因为它们具有相对较低的S O N，但总体上S 0得到改善。 可以使中上层磁性层和上磁性层实质上更薄，这使得磁层能够更靠近写入头位置，从而将每个磁性层暴露于较高的写入场。
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公开(公告)号：US20050214811A1
公开(公告)日：2005-09-29
申请号：US11009236
申请日：2004-12-10
申请人： David Margulies , Joseph Majzoub , Isaac Kohane , Joyce Samet
发明人： David Margulies , Joseph Majzoub , Isaac Kohane , Joyce Samet
IPC分类号： C12Q1/68 , G01N33/48 , G01N33/50 , G06F20060101 , G06F19/18 , G06F19/22 , G06F19/28 , G06F19/00
摘要： Changes in association between a genetic variant and a disorder can be used as a prompt to automatically revise the diagnosis based on the patient's genetic information. For example, revisions in levels of confidence of a curated database of variants can trigger sending an updated report to the clinician or patient.
摘要翻译： 遗传变异与病症之间的联系变化可用作根据患者遗传信息自动修正诊断的提示。 例如，修订的变体数据库的置信度的修订可以触发向临床医生或患者发送更新的报告。
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公开(公告)号：US08546001B2
公开(公告)日：2013-10-01
申请号：US12827080
申请日：2010-06-30
申请人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
发明人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
摘要： Patterned media and associated methods of fabrication are provided in which vertical magnetic grains are grown on a patterned seed layer. The patterned seed layer includes a matrix of islands of a first seed material. Each island of first seed material is separated from other islands by a region of second seed material. The first seed material is selected to initiate growth of magnetic material, and the second seed material is selected to initiate growth of non-magnetic material. Subsequently, magnetic material is grown on the first seed material and non-magnetic material is grown on the second seed material. Deposition may be simultaneously. The magnetic and non-magnetic materials form well-defined vertical columns over the first and second seed materials respectively. Thus, each island behaves as an isolated magnetic unit, which switches independently from its neighbor units, which are magnetically separated by the non-magnetic material.
摘要翻译： 提供了图案化的介质和相关联的制造方法，其中在图案种子层上生长垂直磁性颗粒。 图案化种子层包括第一种子材料的岛的基质。 第一种子材料的每个岛通过第二种子材料的区域与其他岛屿分离。 选择第一种子材料以引发磁性材料的生长，并且选择第二种子材料以引发非磁性材料的生长。 随后，在第一种子材料上生长磁性材料，并且在第二种子材料上生长非磁性材料。 沉积可能同时进行。 磁性和非磁性材料分别在第一种子材料和第二种子材料上形成明确的垂直柱。 因此，每个岛作为孤立的磁性单元，其独立地从其相邻单元切换，其被非磁性材料磁分离。
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24.发明授权公开(公告)号：US07081309B2
公开(公告)日：2006-07-25
申请号：US10808020
申请日：2004-03-23
IPC分类号： G11B5/673
摘要： A magnetic recording disk has an antiferromagnetically-coupled (AFC) structure that has an upper ferromagnetic layer (UL), and a lower ferromagnetic layer structure formed of two ferromagnetically-coupled lower layers (LL1, LL2). The UL is antiferromagnetically-coupled to the lower layer structure across an antiferromagnetically-coupling layer. LL1 and LL2 are ferromagnetically coupled across a ferromagnetic coupling layer so the magnetizations of LL1 and LL2 remain parallel in each remanent magnetic state, but are antiparallel to the magnetization of the UL in each remanent magnetic state. The UL has an Mrt greater than the sum of the Mrt values of LL1 and LL2.
摘要翻译： 磁记录盘具有反铁磁耦合（AFC）结构，其具有上铁磁层（UL）和由两个铁磁耦合的下层（LL 1，LL 2）形成的低铁磁层结构。 UL通过反铁磁耦合层与下层结构反铁磁耦合。 LL 1和LL 2横跨铁磁耦合层铁磁耦合，因此LL 1和LL 2的磁化在每个剩余磁性状态下保持平行，但在每个剩余磁状态下与UL的磁化反平行。 UL具有大于LL1和LL2的Mrt值之和的Mrt。
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公开(公告)号：US07862913B2
公开(公告)日：2011-01-04
申请号：US11584992
申请日：2006-10-23
申请人： Xiaoping Bian , Qing Dai , Hoa Do , Yoshihiro Ikeda , David Margulies , Mary Frances Minardi , Natacha Frederique Supper , Kentaro Takano , Min Xiao , Qi-Fan Xiao
发明人： Xiaoping Bian , Qing Dai , Hoa Do , Yoshihiro Ikeda , David Margulies , Mary Frances Minardi , Natacha Frederique Supper , Kentaro Takano , Min Xiao , Qi-Fan Xiao
CPC分类号： G11B5/667 , G11B5/65 , G11B5/66 , G11B5/7325
摘要： An improved structure for the construction of perpendicular recording media is disclosed. The structure includes a perpendicular recording layer with at least two oxide sublayers or a lower sublayer of a non-oxide. One structure includes an upper sublayer comprised of a Silicon-oxide, while a lower sublayer is comprised of a Tantalum-oxide. The structures provide for increased coercivity and corrosion resistance.
摘要翻译： 公开了用于构建垂直记录介质的改进的结构。 该结构包括具有至少两个氧化物层的垂直记录层或非氧化物的下层。 一个结构包括由氧化硅构成的上层，而下层由钽氧化物构成。 该结构提供增强的矫顽力和耐腐蚀性。
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公开(公告)号：US20090059430A1
公开(公告)日：2009-03-05
申请号：US11850165
申请日：2007-09-05
申请人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
发明人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
IPC分类号： G11B15/10
摘要： Patterned media and associated methods of fabrication are provided in which vertical magnetic grains are grown on a patterned seed layer. The patterned seed layer includes a matrix of islands of a first seed material. Each island of first seed material is separated from other islands by a region of second seed material. The first seed material is selected to initiate growth of magnetic material, and the second seed material is selected to initiate growth of non-magnetic material. Subsequently, magnetic material is grown on the first seed material and non-magnetic material is grown on the second seed material. Deposition may be simultaneously. The magnetic and non-magnetic materials form well-defined vertical columns over the first and second seed materials respectively. Thus, each island behaves as an isolated magnetic unit, which switches independently from its neighbor units, which are magnetically separated by the non-magnetic material.
摘要翻译： 提供了图案化的介质和相关联的制造方法，其中在图案种子层上生长垂直磁性颗粒。 图案化种子层包括第一种子材料的岛的基质。 第一种子材料的每个岛通过第二种子材料的区域与其他岛屿分离。 选择第一种子材料以引发磁性材料的生长，并且选择第二种子材料以引发非磁性材料的生长。 随后，在第一种子材料上生长磁性材料，并且在第二种子材料上生长非磁性材料。 沉积可能同时进行。 磁性和非磁性材料分别在第一种子材料和第二种子材料上形成明确的垂直柱。 因此，每个岛作为孤立的磁性单元，其独立地从其相邻单元切换，其被非磁性材料磁分离。
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27.发明授权Perpendicular magnetic recording medium with laminated recording layers formed of exchange-coupled ferromagnetic layers 有权具有由交换耦合铁磁层形成的层压记录层的垂直磁记录介质公开(公告)号：US07488545B2
公开(公告)日：2009-02-10
申请号：US11403468
申请日：2006-04-12
IPC分类号： G11B5/66
摘要： A laminated perpendicular magnetic recording medium has two recording layers (RL1 and RL2) that are separated and magnetically decoupled by a nonmagnetic spacer layer (SL). The SL has a thickness and composition to assure there is no antiferromagnetic or ferromagnetic coupling between RL1 and RL2. Thus in the presence of the write field, RL1 and RL2 respond independently and become oriented with the direction of the write field. Each RL is an “exchange-spring” type magnetic recording layer formed of two ferromagnetic layers (MAG1 and MAG2) that have substantially perpendicular magnetic anisotropy and are ferromagnetically exchange-coupled by a nonmagnetic or weakly ferromagnetic coupling layer (CL). The medium takes advantage of lamination to attain higher signal-to-noise ratio (SNR) yet has improved writability as a result of each RL being an exchange-spring type RL.
摘要翻译： 层叠的垂直磁记录介质具有被非磁性间隔层（SL）分离并磁解除的两个记录层（RL1和RL2）。 SL具有厚度和组成，以确保在RL1和RL2之间不存在反铁磁或铁磁耦合。 因此，在存在写入场的情况下，RL1和RL2独立地响应并且随着写入场的方向而取向。 每个RL是由两个铁磁层（MAG1和MAG2）形成的“交换弹簧”型磁记录层，它们具有基本上垂直的磁各向异性，并通过非磁性或弱铁磁耦合层（CL）进行铁磁交换耦合。 介质利用层叠来获得更高的信噪比（SNR），而由于每个RL是交换弹簧型RL，所以具有改进的可写性。
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28.发明授权Magnetic recording system with three-layer laminated media having improved signal-to-noise ratio 失效具有提高的信噪比的具有三层层压介质的磁记录系统公开(公告)号：US07177118B2
公开(公告)日：2007-02-13
申请号：US10853631
申请日：2004-05-24
申请人： Hoa Van Do , David Margulies , Hal J. Rosen , Natacha F. Supper
发明人： Hoa Van Do , David Margulies , Hal J. Rosen , Natacha F. Supper
CPC分类号： G11B5/66
摘要： A magnetic recording system uses a magnetic recording medium having a laminated magnetic structure with at least three magnetic layers, wherein the magnetic layers have decreasing intrinsic coercivity H0 with distance from the write head. The write field at the center of each magnetic layer is greater than that layer's H0. The magnetic layers have different compositions and/or thicknesses and thereby different values of H0. The alloys used in the middle and upper magnetic layers are relatively “high-moment” alloys that would not ordinarily be used in magnetic recording media because they have relatively low S0NR, but the overall S0NR of the laminated magnetic structure is improved because of the effect of lamination. The middle and upper magnetic layers can be made substantially thinner, which enables the magnetic layers to be located closer to the write head, thereby exposing each of the magnetic layers to a higher write field.
摘要翻译： 磁记录系统使用具有至少三个磁性层的层叠磁性结构的磁记录介质，其中磁层具有与写入头距离更小的固有矫顽力H 0 0。 每个磁性层的中心处的写入场大于该层的H 0 0。 磁性层具有不同的组成和/或厚度，从而具有不同的H 0 O值。 在中上层磁性层中使用的合金是相对“高力矩”的合金，它们通常不会用于磁记录介质，因为它们具有相对较低的S O N，但总体上S 0得到改善。 可以使中上层磁性层和上磁性层实质上更薄，这使得磁层能够更靠近写入头位置，从而将每个磁性层暴露于较高的写入场。
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