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公开(公告)号：US10573500B2
公开(公告)日：2020-02-25
申请号：US15046340
申请日：2016-02-17
Applicant: Seagate Technology LLC
Inventor： Toon Hai Foo , Thomas P. Nolan
Abstract: An apparatus includes a target, wherein the target includes a nonuniform erosion profile. The apparatus also includes a number of interchangeable magnetic and non-magnetic inserts. The interchangeable magnetic and non-magnetic inserts are configured to control a pass through flux based on the nonuniform erosion profile.
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公开(公告)号：US10460755B2
公开(公告)日：2019-10-29
申请号：US14055640
申请日：2013-10-16
Applicant: Seagate Technology LLC
Inventor： Pengcheng Li , Bin Lu , Thomas P. Nolan , Li-Lien Lee , Jai-Young Kim
IPC: G11B5/66 , G11B5/65 , G11B5/82 , H04W4/04 , H04W4/021 , G06Q30/02 , G06Q30/06 , G06Q10/08 , G06Q10/02 , G06Q20/32 , G06Q50/12 , H04L12/18
Abstract: Apparatus for recording data and method for making the same. In accordance with some embodiments, a recording layer is supported by a substrate. The recording layer has a granular magnetic recording layer with a first oxide content, a continuous magnetic recording layer with nominally no oxide content, and an oxide gradient layer disposed between the respective granular magnetic recording layer and the continuous magnetic recording layer. The oxide gradient layer has a second oxide content less than the first oxide content of the granular layer.
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公开(公告)号：US09697857B1
公开(公告)日：2017-07-04
申请号：US15165637
申请日：2016-05-26
Applicant: Seagate Technology LLC
Inventor： Joachim Ahner , David M. Tung , Ganping Ju , Philip L. Steiner , Thomas P. Nolan , Thomas Y. Chang , Pin-Wei Huang , Kaizhong Gao , Timothy Klemmer , David S. Kuo
CPC classification number: G11B5/66 , G11B5/02 , G11B2005/0021 , G11B2005/0024
Abstract: A three dimensional magnetic recording media can consist of a coupling layer disposed between first and second vertically stacked recording layers. The coupling layer can provide exchange or antiferromagnetic coupling and allow the respective recording layers to be individually heat selected to different first and second coupling strengths through application of heat from a heat source.
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公开(公告)号：US09520151B2
公开(公告)日：2016-12-13
申请号：US13836521
申请日：2013-03-15
Applicant: Seagate Technology LLC
Inventor： Jiaoming Qui , Yonghua Chen , Ganping Ju , Thomas P. Nolan
IPC: G11B5/84 , C21D1/26 , G11B5/66 , G11B5/64 , B32B15/01 , G11B5/65 , G11B5/73 , C21D9/00 , C22C5/04 , C22C30/00 , C22C38/00 , C21D8/12
CPC classification number: G11B5/85 , B32B15/01 , B32B15/017 , B32B15/018 , B32B2307/208 , B32B2307/706 , B32B2457/00 , C21D1/26 , C21D8/12 , C21D9/0068 , C21D2211/004 , C21D2281/02 , C22C5/04 , C22C30/00 , C22C38/002 , C22F1/14 , C23C14/165 , C23C14/221 , C23C14/28 , C23C14/3464 , C23C14/35 , C23C14/5806 , C23C14/5833 , C23C14/5873 , G11B5/647 , G11B5/65 , G11B5/653 , G11B5/66 , G11B5/732 , G11B5/84 , G11B5/851
Abstract: A method involves depositing a seed layer comprising at least A1 phase FePt. A main layer of A1 phase FePt is deposited over the seed layer. The main layer includes FePt of a different stoichiometry than the seed layer. The seed and main layers are annealed to convert the A1 phase FePt to L10 phase FePt. The annealing involves heating the substrate prior to depositing at least part of the A1 phase FePt of the main or seed layers.
Abstract translation: 一种方法包括沉积包含至少Al相FePt的种子层。 A1相FePt的主层沉积在种子层上。 主层包括与种子层不同化学计量的FePt。 将种子和主层退火以将Al相FePt转化为L10相FePt。 退火包括在沉积主层或种子层的Al相FePt的至少一部分之前加热衬底。
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15.发明申请Perpendicular Recording Media with Enhanced Anisotropy Through Energy Assisted Segregation 审中-公开通过能量辅助隔离增强各向异性的垂直记录介质公开(公告)号：US20160099020A1
公开(公告)日：2016-04-07
申请号：US14970809
申请日：2015-12-16
Applicant: Seagate Technology LLC
Inventor： Chun Wang , Connie Liu , Thomas P. Nolan , Kueir-Weei Chour
Abstract: Apparatus for recording data and method for making the same. In accordance with some embodiments, a magnetic layer is supported by a substrate and comprises a magnetic magnetic material, a non-magnetic material, and an energy assisted segregation material. The segregation material enhances segregation of the non-magnetic material into grain boundaries within the layer at an elevated, moderate energy level.
Abstract translation: 用于记录数据的装置及其制造方法。 根据一些实施例，磁性层由衬底支撑并且包括磁性材料，非磁性材料和能量辅助分离材料。 偏析材料增强了非磁性材料在升高的中等能级下在层内的晶界的分离。
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Patent Agency Ranking
公开(公告)号：US20150017481A1
公开(公告)日：2015-01-15
申请号：US14308632
申请日：2014-06-18
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Thomas P. Nolan , Kim Y. Lee , Shuaigang Xiao , Tom Chang , Yingguo Peng
CPC classification number: G11B5/855
Abstract: The embodiments disclose a structure, including a first layer selectively etched on a substrate with a seedlayer deposited thereon, a first layer bit patterned growth guiding mechanism on the seedlayer, and a plurality of bit patterned magnetic recording features grown on the seedlayer guided by the growth guiding mechanism.
Abstract translation: 实施方案公开了一种结构，其包括在其上沉积有籽晶层的基板上选择性地蚀刻的第一层，种子层上的第一层位图案生长引导机构以及由生长引导的种子上生长的多个位图案化磁记录特征 指导机制。
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公开(公告)号：US20140272470A1
公开(公告)日：2014-09-18
申请号：US13844703
申请日：2013-03-15
Applicant: Seagate Technology LLC
Inventor： Chun Wang , Connie Liu , Thomas P. Nolan , Kueir-Weei Chour
CPC classification number: G11B5/851 , C23C14/083 , C23C14/087 , C23C14/541 , G11B5/65 , G11B5/84
Abstract: Apparatus for recording data and method for making the same. In accordance with some embodiments, a magnetic layer is supported by a substrate and comprises a magnetic magnetic material, a non-magnetic material, and an energy assisted segregation material. The segregation material enhances segregation of the non-magnetic material into grain boundaries within the layer at an elevated, moderate energy level.
Abstract translation: 用于记录数据的装置及其制造方法。 根据一些实施例，磁性层由衬底支撑并且包括磁性材料，非磁性材料和能量辅助分离材料。 偏析材料增强了非磁性材料在升高的中等能级下在层内的晶界的分离。
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公开(公告)号：US10311907B2
公开(公告)日：2019-06-04
申请号：US14229750
申请日：2014-03-28
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Thomas P. Nolan , Li Tang , Yong-Chang Feng , Zhong (Stella) Wu , Samuel D. Harkness , Hans J. Richter , Youfeng Zheng
Abstract: Provided herein is an apparatus, including a magnetically soft underlayer (SUL); an interlayer stack overlying the SUL, wherein the interlayer stack comprises a seed layer of an fcc material; and a perpendicular magnetic recording layer overlying the interlayer stack, wherein a thickness of the SUL in combination with a distance of the SUL from the perpendicular recording layer is sufficient to orient a total magnetic field corresponding to a magnetic transducer head at an angle of about 45°.
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公开(公告)号：US10026432B1
公开(公告)日：2018-07-17
申请号：US13789312
申请日：2013-03-07
Applicant: Seagate Technology LLC
Inventor： Thomas P. Nolan , Kai Chieh Chang , Yukiko Kubota , Yingguo Peng , Jan-Ulrich Thiele
Abstract: A magnetic stack includes a interlayer structure and a magnetic recording layer disposed over the interlayer in the magnetic stack. The magnetic recording layer includes substantially ordered L10, oriented crystalline magnetic grains laterally separated by a nonmagnetic, segregant material. The interlayer structure comprises a first layer having cubic crystal structure including oriented crystalline grains and a second layer having crystalline grains laterally separated by a segregant material. The crystalline grains of the second layer are arranged in substantially vertically contiguous alignment with the crystalline grains of the first layer and the segregant material of the magnetic recording layer is arranged in substantially vertically contiguous alignment with the segregant material of the second layer.
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公开(公告)号：US09779771B1
公开(公告)日：2017-10-03
申请号：US15083735
申请日：2016-03-29
Applicant: Seagate Technology LLC
Inventor： Kangkang Wang , Yingguo Peng , Ganping Ju , Xiaobin Zhu , Li Gao , Yinfeng Ding , Kai Chieh Chang , Timothy J. Klemmer , Yukiko Kubota , Jan-Ulrich Thiele , Thomas P. Nolan
CPC classification number: G11B5/653 , G11B5/66 , G11B5/72 , G11B5/82 , G11B2005/0021
Abstract: A stack includes a substrate, a magnetic recording layer comprising FePtX disposed over the substrate, and a capping layer disposed on the magnetic recording layer. The capping layer comprises Co; at least one rare earth element; one or more elements selected from a group consisting of Fe and Pt; and an amorphizing agent comprising one to three elements selected from a group consisting of B, Zr, Ta, Cr, Nb, W, V, and Mo.
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