公开(公告)号：US07964297B2

公开(公告)日：2011-06-21

申请号：US12653216

申请日：2009-12-09

申请人： Hong Deng ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano ,  Kai Tang

发明人： Hong Deng ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano ,  Kai Tang

IPC分类号： G11B5/127 ,  G11B5/71

CPC分类号： G11B5/667 ,  G11B5/7325

摘要： The invention uses an adhesion layer of an amorphous alloy of aluminum. A first aluminum titanium embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %). A second embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %) and up to 10 at. % Zr with 5 at. % Zr being preferred. A third embodiment is aluminum tantalum preferably including from 15 to 25 at. % tantalum with 20 at. % being preferred. The most preferred compositions are Al50Ti50, Al47.5Ti47.5Zr5 or Al80Ta20. The adhesion layer is deposited onto the substrate. The substrate can be glass or a metal such as NiP-plated AlMg. The preferred embodiment of media according to the invention is for perpendicular recording and includes a magnetically soft underlayer deposited above the adhesion layer.

摘要翻译： 本发明使用铝非晶合金的粘合层。 无定形粘合层的第一铝钛实施例优选含有大约相等量的铝和钛（+/- 5原子％）。 无定形粘合层的第二个实施方案优选含有大约相等量的铝和钛（+/- 5原子％）和至多10原子。 ％Zr，5 at。 ％Zr是优选的。 第三实施例是铝钽，优选包括15至25at。 20％钽。 ％是首选。 最优选的组合物是Al 50 Ti 50，Al 47.5 Ti 47.5 Zr 5或Al 80 T a 20。 粘附层沉积在基底上。 基底可以是玻璃或诸如NiP镀AlMg的金属。 根据本发明的介质的优选实施例是用于垂直记录，并且包括沉积在粘附层上方的磁软底层。

公开(公告)号：US20100091402A1

公开(公告)日：2010-04-15

申请号：US12653216

申请日：2009-12-09

申请人： Hong Deng ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano ,  Kai Tang

发明人： Hong Deng ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano ,  Kai Tang

IPC分类号： G11B5/127 ,  G11B5/66

CPC分类号： G11B5/667 ,  G11B5/7325

摘要： The invention uses an adhesion layer of an amorphous alloy of aluminum. A first aluminum titanium embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %). A second embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %) and up to 10 at. % Zr with 5 at. % Zr being preferred. A third embodiment is aluminum tantalum preferably including from 15 to 25 at. % tantalum with 20 at. % being preferred. The most preferred compositions are Al50Ti50, Al47.5Ti47.5Zr5 or Al80Ta20. The adhesion layer is deposited onto the substrate. The substrate can be glass or a metal such as NiP-plated AlMg. The preferred embodiment of media according to the invention is for perpendicular recording and includes a magnetically soft underlayer deposited above the adhesion layer.

摘要翻译： 本发明使用铝非晶合金的粘合层。 无定形粘合层的第一铝钛实施例优选含有大约相等量的铝和钛（+/- 5原子％）。 无定形粘合层的第二个实施方案优选含有大约相等量的铝和钛（+/- 5原子％）和至多10原子。 ％Zr，5 at。 ％Zr是优选的。 第三实施例是铝钽，优选包括15至25at。 20％钽。 ％是首选。 最优选的组合物是Al 50 Ti 50，Al 47.5 Ti 47.5 Zr 5或Al 80 T a 20。 粘附层沉积在基底上。 基底可以是玻璃或诸如NiP镀AlMg的金属。 根据本发明的介质的优选实施例是用于垂直记录，并且包括沉积在粘附层上方的磁软底层。

公开(公告)号：US07651794B2

公开(公告)日：2010-01-26

申请号：US11118850

申请日：2005-04-28

申请人： Hong Deng ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano ,  Kai Tang

发明人： Hong Deng ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano ,  Kai Tang

IPC分类号： G11B5/71 ,  G11B5/708

CPC分类号： G11B5/667 ,  G11B5/7325

摘要： The invention uses an adhesion layer of an amorphous alloy of aluminum. A first aluminum titanium embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %). A second embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %) and up to 10 at. % Zr with 5 at. % Zr being preferred. A third embodiment is aluminum tantalum preferably including from 15 to 25 at. % tantalum with 20 at. % being preferred. The most preferred compositions are Al50Ti50, Al47.5Ti47.5Zr5 or Al80 Ta20. The adhesion layer is deposited onto the substrate. The substrate can be glass or a metal such as NiP-plated AlMg. The preferred embodiment of media according to the invention is for perpendicular recording and includes a magnetically soft underlayer deposited above the adhesion layer.

摘要翻译： 本发明使用铝非晶合金的粘合层。 无定形粘合层的第一铝钛实施例优选含有大约相等量的铝和钛（+/- 5原子％）。 无定形粘合层的第二个实施方案优选含有大约相等量的铝和钛（+/- 5原子％）和至多10原子。 ％Zr，5 at。 ％Zr是优选的。 第三实施例是铝钽，优选包括15至25at。 20％钽。 ％优先。 最优选的组成是Al50Ti50，Al47.5Ti47.5Zr5或Al80 Ta20。 粘附层沉积在基底上。 基底可以是玻璃或诸如NiP镀AlMg的金属。 根据本发明的介质的优选实施例是用于垂直记录，并且包括沉积在粘附层上方的磁软底层。

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。

公开(公告)号：US20090213494A1

公开(公告)日：2009-08-27

申请号：US12387091

申请日：2009-04-27

申请人： Qing Dai ,  Bernd Heinz ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano

发明人： Qing Dai ,  Bernd Heinz ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano

IPC分类号： G11B5/127 ,  G11B5/66 ,  G11B5/65

CPC分类号： G11B5/667 ,  G11B5/7379

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。

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。

公开(公告)号：US07524570B2

公开(公告)日：2009-04-28

申请号：US11251142

申请日：2005-10-13

申请人： Qing Dai ,  Bernd Heinz ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano

发明人： Qing Dai ,  Bernd Heinz ,  Yoshihiro Ikeda ,  Mary Frances Minardi ,  Kentaro Takano

IPC分类号： G11B5/667

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。

公开(公告)号：US20060246324A1

公开(公告)日：2006-11-02

申请号：US11118850

申请日：2005-04-28

申请人： Hong Deng ,  Yoshihiro Ikeda ,  Mary Minardi ,  Kentaro Takano ,  Kai Tang

发明人： Hong Deng ,  Yoshihiro Ikeda ,  Mary Minardi ,  Kentaro Takano ,  Kai Tang

IPC分类号： G11B5/66

CPC分类号： G11B5/667 ,  G11B5/7325

摘要： The invention uses an adhesion layer of an amorphous alloy of aluminum. A first aluminum titanium embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %). A second embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %) and up to 10 at. % Zr with 5 at. % Zr being preferred. A third embodiment is aluminum tantalum preferably including from 15 to 25 at. % tantalum with 20 at. % being preferred. The most preferred compositions are Al50Ti50, Al47.5Ti47.5Zr5 or Al80 Ta20. The adhesion layer is deposited onto the substrate. The substrate can be glass or a metal such as NiP-plated AlMg. The preferred embodiment of media according to the invention is for perpendicular recording and includes a magnetically soft underlayer deposited above the adhesion layer.

摘要翻译： 本发明使用铝非晶合金的粘合层。 无定形粘合层的第一铝钛实施例优选含有大约相等量的铝和钛（+/- 5原子％）。 无定形粘合层的第二个实施方案优选含有大约相等量的铝和钛（+/- 5原子％）和至多10原子。 ％Zr，5 at。 ％Zr是优选的。 第三实施例是铝钽，优选包括15至25at。 20％钽。 ％是首选。 最优选的组合物是Al 50 N 50，Al 47.5 Ti 47.5 Zr 5 >或> 80 20 20。 粘附层沉积在基底上。 基底可以是玻璃或诸如NiP镀AlMg的金属。 根据本发明的介质的优选实施例是用于垂直记录，并且包括沉积在粘附层上方的磁软底层。

公开(公告)号：US20090080110A1

公开(公告)日：2009-03-26

申请号：US11860441

申请日：2007-09-24

申请人： Andreas Berger ,  Yoshihiro Ikeda ,  Kentaro Takano

发明人： Andreas Berger ,  Yoshihiro Ikeda ,  Kentaro Takano

IPC分类号： G11B5/127

CPC分类号： G11B5/02 ,  G11B5/66

摘要： A perpendicular magnetic recording media is provided having an imbalanced magnetic moment multilayer cap. The perpendicular magnetic recording media comprises a granular layer, and a multilayer cap structure exchange coupled to the granular layer. The multilayer cap structure includes upper and lower magnetic layers separated by a non-magnetic layer, where the upper magnetic layer has a magnetic moment greater than the lower magnetic layer. When an external field is applied to the recording media, a larger moment torque is triggered at the surface, and more efficient switching is facilitated. The upper magnetic layer may have a higher magnetic moment than the lower magnetic layer if the upper magnetic layer comprises a larger magnetic moment material than the lower magnetic layer. The upper magnetic layer may also have a higher magnetic moment than the lower magnetic layer if the upper magnetic layer has a greater thickness than the lower magnetic layer.

摘要翻译： 提供具有不平衡磁矩多层盖的垂直磁记录介质。 垂直磁记录介质包括粒状层，以及与颗粒层耦合的多层帽结构交换。 多层盖结构包括由非磁性层分离的上磁层和下磁层，其中上磁层的磁矩大于下磁层。 当向记录介质施加外部场时，在表面触发更大的力矩，并且更有效地切换。 如果上部磁性层包含比下部磁性层更大的磁矩材料，则上磁性层的磁矩可能比下部磁性层高。 如果上部磁性层的厚度大于下部磁性层的厚度，则上部磁性层也可以具有比下部磁性层更高的磁矩。

公开(公告)号：US07491452B2

公开(公告)日：2009-02-17

申请号：US11203360

申请日：2005-08-12

申请人： Hoa Van Do ,  Bernd Heinz ,  Yoshihiro Ikeda ,  Kentaro Takano ,  Min Xiao

发明人： Hoa Van 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。