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1. 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。

2. 发明授权

US07862913B2 Oxide magnetic recording layers for perpendicular recording media 有权
标题翻译：用于垂直记录介质的氧化物磁记录层
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
IPC分类号： G11B5/66 , G11B5/706
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。

3. 发明申请

US20080096053A1 Oxide magnetic recording layers for perpendicular recording media 有权
标题翻译：用于垂直记录介质的氧化物磁记录层
公开(公告)号：US20080096053A1
公开(公告)日：2008-04-24
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
IPC分类号： G11B5/66
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。

4. 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。

5. 发明申请

US20070087225A1 Perpendicular magnetic recording system and medium with high-moment corrosion-resistant "soft" underlayer (SUL) 有权
标题翻译：垂直磁记录系统和高力矩耐腐蚀“软”底层（SUL）
公开(公告)号：US20070087225A1
公开(公告)日：2007-04-19
申请号：US11251142
申请日：2005-10-13
申请人： Qing Dai , Bernd Heinz , Yoshihiro Ikeda , Mary Minardi , Kentaro Takano
发明人： Qing Dai , Bernd Heinz , Yoshihiro Ikeda , Mary Minardi , Kentaro Takano
IPC分类号： G11B5/66
CPC分类号： G11B5/732 , G11B5/667
摘要： A perpendicular magnetic recording disk has a soft magnetic underlayer (SUL) that has high corrosion resistance as well as high moment. The material of the SUL is an alloy comprising Co, Fe, X, and Y; where X is Ta or Nb, Y is Zr or Hf, and the combined amount of X and Y present in the alloy is between about 10 and 20 atomic percent. The atomic ratio of Co to Fe in the alloy is between about 90:10 to 10:90, preferably between about 25:75 and 35:65. The SUL may be a single-layer SUL or a multilayer SUL formed of multiple soft magnetic layers separated by an interlayer film or films.
摘要翻译：垂直磁记录盘具有高耐蚀性和高力矩的软磁性底层（SUL）。 SUL的材料是包括Co，Fe，X和Y的合金; 其中X是Ta或Nb，Y是Zr或Hf，合金中存在的X和Y的组合量在约10和20原子％之间。合金中Co与Fe的原子比为约90:10至10:90，优选约25:75至35:65。 SUL可以是由层间膜或膜分离的多个软磁层形成的单层SUL或多层SUL。

6. 发明申请

US20070037016A1 Perpendicular magnetic recording disk with recording layer containing selected metal oxides and formed on a reduced-thickness exchange-break layer 有权
标题翻译：垂直磁记录盘，其记录层含有选定的金属氧化物，并形成于厚度较薄的交换层
公开(公告)号：US20070037016A1
公开(公告)日：2007-02-15
申请号：US11203360
申请日：2005-08-12
申请人： Hoa Do , Bernd Heinz , Yoshihiro Ikeda , Kentaro Takano , Min Xiao
发明人： Hoa Do , Bernd Heinz , Yoshihiro Ikeda , Kentaro Takano , Min Xiao
IPC分类号： G11B5/66
CPC分类号： G11B5/667 , G11B5/65 , G11B5/656 , G11B5/66 , G11B5/7325
摘要： A perpendicular magnetic recording disk has a granular Co-based ferromagnetic alloy recording layer (RL) with oxides of a selected metal (Ta or Nb) and a reduced-thickness exchange-break layer (EBL) between the RL and the soft magnetic underlayer (SUL). A perpendicular magnetic recording system that includes the disk, the write head and the read head, has an improved ability to write to the RL because of the reduced-thickness EBL.
摘要翻译：垂直磁记录盘具有在RL和软磁性底层之间具有所选金属（Ta或Nb）和减薄厚度交换破坏层（EBL）的氧化物的粒状Co基铁磁合金记录层（RL） SUL）。由于厚度较薄的EBL，包括盘，写头和读头的垂直磁记录系统具有提高写入RL能力。

7. 发明申请

US20060269799A1 Perpendicular magnetic recording disk with improved recording layer having high oxygen content 有权
标题翻译：垂直磁记录盘，具有改善的氧含量高的记录层
公开(公告)号：US20060269799A1
公开(公告)日：2006-11-30
申请号：US11135750
申请日：2005-05-24
申请人： Hoa Do , Bernd Heinz , Yoshihiro Ikeda , Kentaro Takano , Min Xiao
发明人： Hoa Do , Bernd Heinz , Yoshihiro Ikeda , Kentaro Takano , Min Xiao
IPC分类号： G11B5/65
CPC分类号： G11B5/65 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/732
摘要： A perpendicular magnetic recording disk has an improved recording layer of a granular CoPtCr-based ferromagnetic alloy with inter-granular material made up of one or more oxides of Cr and one or more oxides of one or more of a segregant of Si, Ta, Ti, B, Nb or Hf, wherein the amount of oxygen present in the recording layer is greater than about 22 atomic percent and less than about 35 atomic percent. The amount of oxygen in the recording layer is substantially greater than the amount required for the stoichiometric oxide or oxides of the segregant or segregants, and a substantial portion of the oxygen present in the recording layer is present in the inter-granular material. The recording layer exhibits high signal-to-noise ratio (SNR), a coercivity Hc greater than about 5000 Oe and a nucleation field Hn greater (more negative) than about −1500 Oe.
摘要翻译：垂直磁记录盘具有改进的基于CoPtCr的铁磁性合金的记录层，其具有由一种或多种Cr的一种或多种氧化物和一种或多种Si，Ta，Ti分离的一种或多种氧化物构成的颗粒间材料，B，Nb或Hf，其中存在于记录层中的氧的量大于约22原子％且小于约35原子％。记录层中的氧气量基本上大于分离器或分离器的化学计量氧化物或氧化物所需的量，并且记录层中存在的大部分氧气存在于颗粒间材料中。记录层表现出高的信噪比（SNR），大于约5000Oe的矫顽力H c和大于（更负）的成核场H N n 约-1500 Oe。

8. 发明授权

US08747628B2 Perpendicular magnetic recording media with oxide-containing exchange coupling layer 有权
标题翻译：具有氧化物交换耦合层的垂直磁记录介质
公开(公告)号：US08747628B2
公开(公告)日：2014-06-10
申请号：US13438804
申请日：2012-04-03
申请人： Xiaoping Bian , Jack Jyh-Kau Chang , Qing Dai , Hoa V. Do , Yoshihiro Ikeda , Kentaro Takano , Chu S. Tran
发明人： Xiaoping Bian , Jack Jyh-Kau Chang , Qing Dai , Hoa V. Do , Yoshihiro Ikeda , Kentaro Takano , Chu S. Tran
IPC分类号： C23C14/08
CPC分类号： G11B5/66 , G11B5/65
摘要： A method according to one embodiment includes forming a high Ku first oxide magnetic layer above a substrate by sputtering; forming a low Ku second oxide magnetic layer above the first oxide magnetic layer by sputtering; forming an exchange coupling layer of CoCrPt-oxide above the second oxide magnetic layer; and forming a magnetic cap layer above the exchange coupling layer. Additional systems and methods are also presented.
摘要翻译：根据一个实施例的方法包括通过溅射在衬底上方形成高Ku第一氧化物磁性层; 通过溅射在第一氧化物磁性层上方形成低Ku第二氧化物磁性层; 在所述第二氧化物磁性层上方形成CoCrPt氧化物的交换耦合层; 以及在所述交换耦合层上方形成磁性覆盖层。还介绍了其他系统和方法。

9. 发明授权

US08168310B2 Perpendicular magnetic recording media with oxide-containing exchange coupling layer 有权
标题翻译：具有氧化物交换耦合层的垂直磁记录介质
公开(公告)号：US08168310B2
公开(公告)日：2012-05-01
申请号：US12638905
申请日：2009-12-15
申请人： Xiaoping Bian , Jack Jyh-Kau Chang , Qing Dai , Hoa V. Do , Yoshihiro Ikeda , Kentaro Takano , Chu S. Tran
发明人： Xiaoping Bian , Jack Jyh-Kau Chang , Qing Dai , Hoa V. Do , Yoshihiro Ikeda , Kentaro Takano , Chu S. Tran
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/65
摘要： A magnetic storage medium according to one embodiment includes a substrate; a first oxide magnetic layer formed above the substrate; a second oxide magnetic layer formed above the first oxide magnetic layer; an exchange coupling layer formed above the second oxide magnetic layer, the exchange coupling layer comprising an oxide; and a magnetic cap layer formed above the exchange coupling layer. A method according to one embodiment includes forming a high Ku first oxide magnetic layer above a substrate by sputtering; forming a low Ku second oxide magnetic layer above the first oxide magnetic layer by sputtering; forming an exchange coupling layer of CoCrPt-oxide above the second oxide magnetic layer; and forming a magnetic cap layer above the exchange coupling layer. Additional systems and methods are also presented.
摘要翻译：根据一个实施例的磁存储介质包括基板; 形成在所述基板上的第一氧化物磁性层; 形成在所述第一氧化物磁性层上方的第二氧化物磁性层; 在所述第二氧化物磁性层上形成的交换耦合层，所述交换耦合层包含氧化物; 以及形成在所述交换耦合层上方的磁性盖层。根据一个实施例的方法包括通过溅射在衬底上方形成高Ku第一氧化物磁性层; 通过溅射在第一氧化物磁性层上方形成低Ku第二氧化物磁性层; 在所述第二氧化物磁性层上方形成CoCrPt氧化物的交换耦合层; 以及在所述交换耦合层上方形成磁性覆盖层。还介绍了其他系统和方法。

10. 发明申请

US20110141621A1 PERPENDICULAR MAGNETIC RECORDING MEDIA WITH OXIDE-CONTAINING EXCHANGE COUPLING LAYER 有权
标题翻译：含氧化物交换耦合层的全磁性记录介质
公开(公告)号：US20110141621A1
公开(公告)日：2011-06-16
申请号：US12638905
申请日：2009-12-15
申请人： Xiaoping Bian , Jack Jyh-Kau Chang , Qing Dai , Hoa V. Do , Yoshihiro Ikeda , Kentaro Takano , Chu S. Tran
发明人： Xiaoping Bian , Jack Jyh-Kau Chang , Qing Dai , Hoa V. Do , Yoshihiro Ikeda , Kentaro Takano , Chu S. Tran
IPC分类号： G11B5/82 , C23C14/34
CPC分类号： G11B5/66 , G11B5/65
摘要： A magnetic storage medium according to one embodiment includes a substrate; a first oxide magnetic layer formed above the substrate; a second oxide magnetic layer formed above the first oxide magnetic layer; an exchange coupling layer formed above the second oxide magnetic layer, the exchange coupling layer comprising an oxide; and a magnetic cap layer formed above the exchange coupling layer. A method according to one embodiment includes forming a high Ku first oxide magnetic layer above a substrate by sputtering; forming a low Ku second oxide magnetic layer above the first oxide magnetic layer by sputtering; forming an exchange coupling layer of CoCrPt-oxide above the second oxide magnetic layer; and forming a magnetic cap layer above the exchange coupling layer. Additional systems and methods are also presented.
摘要翻译：根据一个实施例的磁存储介质包括基板; 形成在所述基板上的第一氧化物磁性层; 形成在所述第一氧化物磁性层上方的第二氧化物磁性层; 在所述第二氧化物磁性层上形成的交换耦合层，所述交换耦合层包含氧化物; 以及形成在所述交换耦合层上方的磁性盖层。根据一个实施例的方法包括通过溅射在衬底上方形成高Ku第一氧化物磁性层; 通过溅射在第一氧化物磁性层上方形成低Ku第二氧化物磁性层; 在所述第二氧化物磁性层上方形成CoCrPt氧化物的交换耦合层; 以及在所述交换耦合层上方形成磁性覆盖层。还介绍了其他系统和方法。

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