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1. 发明申请

US20070042226A1 Intermediate tri-layer structure for perpendicular recording media 有权
标题翻译：用于垂直记录介质的中间三层结构
公开(公告)号：US20070042226A1
公开(公告)日：2007-02-22
申请号：US11208207
申请日：2005-08-19
申请人： Ernesto Marinero , Natacha Supper , Brian York
发明人： Ernesto Marinero , Natacha Supper , Brian York
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/65
摘要： An improved structure for the construction of perpendicular recording media is disclosed. The structure includes a tri-layer IML resident between a soft under layer CoTaZr film and a CoPtCr—SiO2 magnetic media. In an embodiment, the tri-layer comprises a RuxCr1-x layer over dual nucleation layers of Ni—Fe and Ni—Fe—Cr. The tri-layer replaces the typical Ru and Ni—Fe intermediate layers of the prior art, resulting in considerable improvement in lattice matching between the Ru containing intermediate layer and the CoPtCr—SiO2 magnetic media, further resulting in improved magnetic media performance.
摘要翻译：公开了用于构建垂直记录介质的改进的结构。该结构包括驻留在软底层CoTaZr膜和CoPtCr-SiO 2磁性介质之间的三层IML。在一个实施方案中，三层在Ni-Fe和Ni-Fe-Cr的双成核层上包含Ru 1 x 1 Cr 1-x H 2层。三层代替现有技术的典型的Ru和Ni-Fe中间层，导致含Ru中间层和CoPtCr-SiO 2磁性介质之间的晶格匹配的显着改进，进一步得到在改善磁性介质性能。

2. 发明申请

US20100128391A1 Perpendicular Recording Media Having an Exchange-Spring Structure 有权
标题翻译：具有交换弹簧结构的垂直记录介质
公开(公告)号：US20100128391A1
公开(公告)日：2010-05-27
申请号：US12691603
申请日：2010-01-21
申请人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
发明人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
IPC分类号： G11B5/127 , G11B5/65 , G11B5/84
CPC分类号： G11B5/66 , G11B5/656
摘要： A recording medium providing improved writeability in perpendicular recording applications includes a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, an exchange-spring layer ferromagnetically exchange coupled to the magnetic recording layer and having a coercivity less than the magnetic recording layer coercivity, and a coupling layer between the magnetic recording layer and the exchange-spring layer. The coupling layer regulates the ferromagnetic exchange coupling between the magnetic recording layer and the exchange-spring layer.
摘要翻译：在垂直记录应用中提供改善的写入能力的记录介质包括具有基本上垂直于其表面的磁各向异性轴的磁记录层，耦合到磁记录层并具有小于磁记录的矫顽磁力的磁性交换弹簧层层矫顽力和磁记录层与交换弹簧层之间的耦合层。耦合层调节磁记录层与交换弹簧层之间的铁磁交换耦合。

3. 发明授权

US07687157B2 Perpendicular recording media having an exchange-spring structure 失效
标题翻译：具有交换弹簧结构的垂直记录介质
公开(公告)号：US07687157B2
公开(公告)日：2010-03-30
申请号：US11231516
申请日：2005-09-21
申请人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
发明人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/656
摘要： A recording medium providing improved writeability in perpendicular recording applications includes a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, an exchange-spring layer ferromagnetically exchange coupled to the magnetic recording layer and having a coercivity less than the magnetic recording layer coercivity, and a coupling layer between the magnetic recording layer and the exchange-spring layer. The coupling layer regulates the ferromagnetic exchange coupling between the magnetic recording layer and the exchange-spring layer.
摘要翻译：在垂直记录应用中提供改善的写入能力的记录介质包括具有基本上垂直于其表面的磁各向异性轴的磁记录层，耦合到磁记录层并具有小于磁记录的矫顽磁力的磁性交换弹簧层层矫顽力和磁记录层与交换弹簧层之间的耦合层。耦合层调节磁记录层与交换弹簧层之间的铁磁交换耦合。

4. 发明申请

US20070243418A1 Perpendicular magnetic recording medium with laminated recording layers formed of exchange-coupled ferromagnetic layers 有权
标题翻译：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：US20070243418A1
公开(公告)日：2007-10-18
申请号：US11403468
申请日：2006-04-12
申请人： Eric Fullerton , David Margulies , Hal Rosen , Natacha Supper
发明人： Eric Fullerton , David Margulies , Hal Rosen , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/65
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由非磁性间隔层（SL）分离并磁解除的两个记录层（RL 1和RL 2）。 SL具有厚度和组成，以确保在RL 1和RL 2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，RL 1和RL 2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，并且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。

5. 发明申请

US20070292721A1 Perpendicular magnetic recording medium 审中-公开
标题翻译：垂直磁记录介质
公开(公告)号：US20070292721A1
公开(公告)日：2007-12-20
申请号：US11789891
申请日：2007-04-25
申请人： Andreas Berger , Xiaoping Bian , Qing Dai , Hoa Do , Eric Fullerton , Bernd Heinz , Yoshihiro Ikeda , David Margulies , Mary Minardi , Mohammad Mirzamaani , Hal Rosen , Natacha Supper , Kentaro Takano , Min Xiao
发明人： Andreas Berger , Xiaoping Bian , Qing Dai , Hoa Do , Eric Fullerton , Bernd Heinz , Yoshihiro Ikeda , David Margulies , Mary Minardi , Mohammad Mirzamaani , Hal Rosen , Natacha Supper , Kentaro Takano , Min Xiao
IPC分类号： G11B5/66 , G11B5/706
CPC分类号： G11B5/66 , G11B5/65 , G11B5/7325 , G11B5/851
摘要： A perpendicular magnetic recording medium including improvements to the recording layer (RL), exchange break layer (EBL), soft underlayer (SUL), overcoat (OC), adhesion layer (AL) and the combination of the layers. Advances in the RL include a cap layer. Improvements in the EBL include a multiple layer EBL.
摘要翻译：包括对记录层（RL），交换破坏层（EBL），软底层（SUL），外涂层（OC），粘合层（AL）以及这些层的组合的改进的垂直磁记录介质。 RL的进步包括盖层。 EBL的改进包括多层EBL。

6. 发明申请

US20060210835A1 Disk drive with laminated magnetic thin films with sublayers for magnetic recording 有权
标题翻译：具有层叠磁性薄膜的磁盘驱动器，具有用于磁记录的子层
公开(公告)号：US20060210835A1
公开(公告)日：2006-09-21
申请号：US11084402
申请日：2005-03-18
申请人： Hoa Do , Eric Fullerton , David Margulies , Natacha Supper
发明人： Hoa Do , Eric Fullerton , David Margulies , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/656 , G11B5/66
摘要： The invention includes a disk drive with a magnetic recording disk with an upper and lower sublayer in at least one magnetic layer of a laminated magnetic layer structure that includes a spacer layer that substantially decouples the magnetic layers. The lower sublayer has a lower boron content than the upper sublayer and a preferred embodiment is CoPtCrBTa. The upper sublayer is deposited onto the lower sublayer and is preferably CoPtCrB with a higher boron content than the lower sublayer. The composition of the lower sublayer gives it a very low moment with low intrinsic coercivity which would not be useful as a recording layer on its own. The upper sublayer is a higher moment alloy with high intrinsic coercivity. An embodiment of the invention includes a laminated magnetic layer structure which is antiferromagnetically coupled to a lower ferromagnetic layer.
摘要翻译：本发明包括具有磁记录盘的磁盘驱动器，该磁盘驱动器具有在层叠磁性层结构的至少一个磁性层中具有上和下子层的磁记录盘，该磁层包括使磁性层基本上分离的间隔层。下层具有比上层更低的硼含量，优选实施方案是CoPtCrBTa。上部子层沉积在下部子层上，优选的是具有比下部子层更高的硼含量的CoPtCrB。下层的组成使得其具有低固有矫顽力的非常低的力矩，其本身不会用作记录层。上层是具有高固有矫顽力的较高的力矩合金。本发明的实施例包括层叠的磁性层结构，其被反铁磁耦合到下铁磁层。

7. 发明申请

US20060210834A1 Laminated magnetic thin films with sublayers for magnetic recording 审中-公开
标题翻译：具有用于磁记录的子层的层压磁性薄膜
公开(公告)号：US20060210834A1
公开(公告)日：2006-09-21
申请号：US11084401
申请日：2005-03-18
申请人： Hoa Do , Eric Fullerton , David Margulies , Natacha Supper
发明人： Hoa Do , Eric Fullerton , David Margulies , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/656 , G11B5/66
摘要： The invention uses an upper and lower sublayer in at least one magnetic layer of a laminated magnetic layer structure that includes a spacer layer that substantially decouples the magnetic layers in a magnetic recording medium. The lower sublayer has a lower boron content than the upper sublayer and a preferred embodiment is CoPtCrBTa. The upper sublayer is deposited onto the lower sublayer and is preferably CoPtCrB with a higher boron content than the lower sublayer. The composition of the lower sublayer gives it a very low moment with low intrinsic coercivity which would not be useful as a recording layer on its own. The upper sublayer is a higher moment alloy with high intrinsic coercivity. An embodiment of the invention includes a laminated magnetic layer structure which is antiferromagnetically coupled to a lower ferromagnetic layer.
摘要翻译：本发明使用层叠磁性层结构的至少一个磁性层中的上部和下部子层，其包括使磁性记录介质中的磁性层基本上分离的间隔层。下层具有比上层更低的硼含量，优选实施方案是CoPtCrBTa。上部子层沉积在下部子层上，优选的是具有比下部子层更高的硼含量的CoPtCrB。下层的组成使得其具有低固有矫顽力的非常低的力矩，其本身不会用作记录层。上层是具有高固有矫顽力的较高的力矩合金。本发明的实施例包括层叠的磁性层结构，其被反铁磁耦合到下铁磁层。

8. 发明授权

US07989096B2 Perpendicular recording media having an exchange-spring structure 有权
标题翻译：具有交换弹簧结构的垂直记录介质
公开(公告)号：US07989096B2
公开(公告)日：2011-08-02
申请号：US12691603
申请日：2010-01-21
申请人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
发明人： Andreas Berger , Eric Edward Fullerton , Hoa Van Do , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/656
摘要： A recording medium providing improved writeability in perpendicular recording applications includes a magnetic recording layer having an axis of magnetic anisotropy substantially perpendicular to the surface thereof, an exchange-spring layer ferromagnetically exchange coupled to the magnetic recording layer and having a coercivity less than the magnetic recording layer coercivity, and a coupling layer between the magnetic recording layer and the exchange-spring layer. The coupling layer regulates the ferromagnetic exchange coupling between the magnetic recording layer and the exchange-spring layer.
摘要翻译：在垂直记录应用中提供改善的写入能力的记录介质包括具有基本上垂直于其表面的磁各向异性轴的磁记录层，耦合到磁记录层并具有小于磁记录的矫顽磁力的磁性交换弹簧层层矫顽力和磁记录层与交换弹簧层之间的耦合层。耦合层调节磁记录层与交换弹簧层之间的铁磁交换耦合。

9. 发明申请

US20050259362A1 Laminated magnetic recording medium having improved signal-to-noise ratio 失效
标题翻译：具有提高的信噪比的层压磁记录介质
公开(公告)号：US20050259362A1
公开(公告)日：2005-11-24
申请号：US10853431
申请日：2004-05-24
申请人： Hoa Do , David Margulies , Hal Rosen , Natacha Supper
发明人： Hoa Do , David Margulies , Hal Rosen , Natacha Supper
IPC分类号： G11B5/64 , G11B5/66 , G11B5/82
CPC分类号： G11B5/66 , G11B5/656 , G11B5/82
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。}

10. 发明申请

US20070212574A1 Perpendicular magnetic recording medium with multiple exchange-coupled magnetic layers having substantially similar anisotropy fields 有权
标题翻译：具有多个具有基本相似的各向异性场的交换耦合磁性层的垂直磁记录介质
公开(公告)号：US20070212574A1
公开(公告)日：2007-09-13
申请号：US11372295
申请日：2006-03-09
申请人： Andreas Berger , Hoa Do , Eric Fullerton , Yoshihiro Ikeda , Byron Lengsfield , Natacha Supper
发明人： Andreas Berger , Hoa Do , Eric Fullerton , Yoshihiro Ikeda , Byron Lengsfield , Natacha Supper
IPC分类号： G11B5/66
CPC分类号： G11B5/66
摘要： A perpendicular magnetic recording medium has an “exchange-spring” type magnetic recording layer (RL) formed of two ferromagnetic layers with substantially similar anisotropy fields that are ferromagnetically exchange-coupled by a nonmagnetic or weakly ferromagnetic coupling layer. Because the write head produces a larger magnetic field and larger field gradient at the upper portion of the RL, while the field strength decreases further inside the RL, the upper ferromagnetic layer can have a high anisotropy field. The high field and field gradient near the top of the RL, where the upper ferromagnetic layer is located, reverses the magnetization of the upper ferromagnetic layer, which then assists in the magnetization reversal of the lower ferromagnetic layer. Because both ferromagnetic layers in this exchange-spring type RL have a high anisotropy field, the thermal stability of the medium is not compromised. The medium shows improved writability, i.e., a low switching field, as well as lower intrinsic media noise, over a medium with a conventional single-layer RL.
摘要翻译：垂直磁记录介质具有由具有基本相似的各向异性场的两个铁磁层形成的“交换弹簧”型磁记录层（RL），其通过非磁性或弱铁磁耦合层进行铁磁交换耦合。由于写头在RL的上部产生较大的磁场和较大的场梯度，而在RL内的场强进一步降低，所以上铁磁层可以具有高的各向异性场。在RL的顶部附近的高场磁场梯度，其中上铁磁层位于其上，反转上铁磁层的磁化，其随后有助于下铁磁层的磁化反转。由于这种交换弹簧型RL中的两个铁磁层具有高各向异性场，所以介质的热稳定性不受影响。在具有常规单层RL的介质上，介质显示改进的可写性，即低切换场，以及较低的固有介质噪声。

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