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1. 发明授权

US09940951B2 PMR writer with non-conformal side gaps 有权
公开(公告)号：US09940951B2
公开(公告)日：2018-04-10
申请号：US15053211
申请日：2016-02-25
申请人： Western Digital (Fremont), LLC
发明人： Jinqiu Zhang , Feng Liu , Xiaoyu Yang , Ming Jiang , Xiaotian Zhou , Zeyu Ma , Hai Sun
IPC分类号： G11B5/235 , G11B5/11 , G11B5/127 , G11B5/23 , G11B5/187 , G11B5/10 , G11B5/60 , H01L21/027 , H01L21/3213 , G11B5/147 , G11B5/31
CPC分类号： G11B5/1278 , G11B5/10 , G11B5/11 , G11B5/112 , G11B5/147 , G11B5/187 , G11B5/1878 , G11B5/232 , G11B5/235 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/315 , G11B5/3163 , G11B5/6082 , H01L21/0272 , H01L21/32134 , H01L21/32139 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043
摘要： A perpendicular magnetic recording (PMR) writer is configured to magnetically record data on a rotatable disk surface. The PMR writer including a pole tip, side shields, an air-bearing surface (ABS) region, a yoke region comprising Silicon Dioxide (SiO2), side gaps and a plurality of throat regions. The side gaps are arranged respectively between the pole tip and the side shields and include SiO2. A side gap width of the plurality of throat regions increases with a side shield throat height above the ABS region for each of the throat regions. The side gap width has a different width variation in each of the throat regions.

2. 发明授权

US09741367B1 Fabrication of a tape head with a monobloc closure 有权
公开(公告)号：US09741367B1
公开(公告)日：2017-08-22
申请号：US15041737
申请日：2016-02-11
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Johan Engelen , Mark A. Lantz , Hugo E. Rothuizen
IPC分类号： G11B5/187 , G11B5/10 , G11B5/008 , G11B5/31 , G11B5/127
CPC分类号： G11B5/1871 , G11B5/00813 , G11B5/102 , G11B5/1272 , G11B5/255 , G11B5/3163 , G11B5/3169 , Y10T29/4903 , Y10T29/49032
摘要： A tape head including a body with a tape-bearing surface configured to contact a magnetic tape, at least one transducer that is a read or write element, configured so the tape head may read from or write to the tape, in operation; and a monobloc closure with a structured cross-sectional profile, so as to exhibit: contact part, fixed on a side of the body which adjoins the tape-bearing surface at an edge thereof, the contact part having a top surface level with the tape-bearing surface; and connecting part integral with the contact part, the connecting part having a top surface recessed from the contact part's top surface, perpendicularly to a contact plane defined by the tape-bearing surface, so the connecting part's top surface does not contact the tape, in operation; and a broken line of mechanical weakness that extends at an end of the top surface of the connecting part.

3. 发明授权

US09679586B2 Manufacturing method of a write portion for a thermal assisted magnetic head slider 有权
公开(公告)号：US09679586B2
公开(公告)日：2017-06-13
申请号：US14704675
申请日：2015-05-05
申请人： SAE Magnetics (H.K.) Ltd.
发明人： Natsuo Nishijima , Dong Sheng Li
IPC分类号： G11B5/127 , H04R31/00 , G11B5/00 , G11B5/31 , G11B5/60
CPC分类号： G11B5/127 , G11B5/3116 , G11B5/3133 , G11B5/314 , G11B5/3163 , G11B5/4866 , G11B5/6088 , G11B2005/0021 , Y10T29/49032 , Y10T29/49048
摘要： A manufacturing method of a write portion for a thermally assisted magnetic head slider includes providing a write portion including a write element, a waveguide, and a plasmon unit; lapping opposed-to-magnetic recording medium surfaces of the write element and the waveguide, and an near-field light generating surface of the plasmon unit; only forming a carbon layer on the opposed-to-magnetic recording medium surface of the write element. Corrosive elements in the write portion can be prevented from being corroded and the write element can be prevented from being worn and abraded not only, stable thermal ability for a plasmon unit can be maintained but also.

4. 发明授权

US09484048B2 Magnetic head with a heating element between the read and write element and method of manufacturing thereof 有权
标题翻译：具有读写单元之间的加热元件的磁头及其制造方法
公开(公告)号：US09484048B2
公开(公告)日：2016-11-01
申请号：US12623151
申请日：2009-11-20
申请人： Shinji Sasaki , Takateru Seki , Masayuki Kurita , Toshiya Shiramatsu
发明人： Shinji Sasaki , Takateru Seki , Masayuki Kurita , Toshiya Shiramatsu
IPC分类号： G11B11/00 , G11B5/31 , B24B37/04 , G11B5/60 , G11B5/39
CPC分类号： G11B5/314 , B24B37/042 , G11B5/3136 , G11B5/3967 , G11B5/6064 , Y10T29/49032
摘要： According to one embodiment, a magnetic head includes a write element, a read element, and a heating element disposed between the write element and the read element. When power is applied to the heating element, either the read element or the write element projects beyond a plane of an air-bearing surface (ABS) of the magnetic head, and when power is not applied to the heating element, a portion of the ABS of the magnetic head facing a magnetic disk close to the heating element has a concave shape. In another embodiment, when power is applied to the heating element, at least one of a portion of the read element and a portion of the write element approaches a magnetic disk, and when power is not applied to the heating element, a portion of the ABS of the magnetic head facing a magnetic disk close to the heating element has a concave shape.
摘要翻译：根据一个实施例，磁头包括写入元件，读取元件和设置在写入元件和读取元件之间的加热元件。当对加热元件施加电力时，读取元件或写入元件突出超过磁头的空气轴承表面（ABS）的平面，并且当功率未被施加到加热元件时，一部分面对靠近加热元件的磁盘的磁头的ABS具有凹形。在另一个实施例中，当向加热元件施加电力时，读取元件的一部分和写入元件的一部分中的至少一个接近磁盘，并且当功率未被施加到加热元件时，面对靠近加热元件的磁盘的磁头的ABS具有凹形。

5. 发明授权

US09346672B1 Methods for fabricating damascene write poles using ruthenium hard masks 有权
标题翻译：使用钌硬掩模制造镶嵌写柱的方法
公开(公告)号：US09346672B1
公开(公告)日：2016-05-24
申请号：US12535645
申请日：2009-08-04
申请人： Jinqiu Zhang
发明人： Jinqiu Zhang
IPC分类号： G11B5/127 , H04R31/00 , B82Y10/00 , B82Y25/00 , G11B5/31
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49032 , Y10T29/49044
摘要： A method for forming a write pole comprises the steps of providing a structure comprising a substrate layer, a ruthenium layer over the substrate layer, and a tantalum layer over the ruthenium layer, providing an opening in the tantalum layer over a portion of the ruthenium layer, performing a first reactive ion etching step on the portion of the ruthenium layer under the opening in the tantalum layer to provide an opening in the ruthenium layer over a portion of the substrate layer, performing a second reactive ion etching step on the portion of the substrate layer under the opening in the ruthenium layer to form a damascene trench therein, and filling the damascene trench with a magnetic material to form the write pole.
摘要翻译：一种用于形成写极的方法包括以下步骤：提供包括基底层，基底层上的钌层和钌层之上的钽层的结构，在碲层的一部分上提供钽层中的开口在钽层的开口下方的钌层的部分上进行第一反应离子蚀刻工序，以在基板层的一部分上设置钌层的开口部，在该部分上进行第二反应离子蚀刻工序在钌层的开口下方形成基底层，以在其中形成镶嵌沟槽，并用磁性材料填充镶嵌沟槽以形成写入极。

6. 发明授权

US09275659B2 Peg only near-field transducer 有权
标题翻译：仅佩戴近场传感器
公开(公告)号：US09275659B2
公开(公告)日：2016-03-01
申请号：US14276388
申请日：2014-05-13
申请人： Seagate Technology LLC
发明人： Yuhang Cheng , Chubing Peng
IPC分类号： G11B11/00 , G11B5/31 , G11B5/40 , G11B5/00
CPC分类号： G11B5/314 , G11B5/3106 , G11B5/3163 , G11B5/40 , G11B2005/0021 , Y10T29/49032
摘要： An apparatus for a heat assisted magnetic recording device that includes a write pole, a near-field transducer, and a heat sink. The near-field transducer is comprised only of a peg disposed adjacent the write pole. The heat sink is disposed between the write pole and at least a portion of the near-field transducer.
摘要翻译：一种用于热辅助磁记录装置的装置，其包括写极，近场换能器和散热器。近场换能器仅由设置在写极附近的钉构成。散热器设置在写极和至少一部分近场换能器之间。

7. 发明授权

US09245554B2 Tilted structures to reduce reflection in laser-assisted TAMR 有权
标题翻译：倾斜结构以减少激光辅助TAMR中的反射
公开(公告)号：US09245554B2
公开(公告)日：2016-01-26
申请号：US14580344
申请日：2014-12-23
申请人： Headway Technologies, Inc.
发明人： Xuhui Jin , Xiaohua Lou , Joe Smyth , Moris Dovek
IPC分类号： G11B5/48 , G11B5/31 , G11B5/60 , G11B5/127 , G11B13/04 , G11B5/00
CPC分类号： G11B5/4866 , G11B5/127 , G11B5/314 , G11B5/6005 , G11B5/6088 , G11B13/04 , G11B2005/0021 , Y10T29/49032
摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser excited surface plasmons in a plasmon generator to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. The optical radiation is transmitted to the plasmon generator by means of a waveguide, whose optical axis (centerline) is tilted relative to either or both the backside surface normal and ABS surface normal in order to eliminate back reflections of the optical radiation that can adversely affect the properties and performance of the laser. Variations of the disclosure include tilting the plasmon generator, the waveguide and the laser diode.
摘要翻译： TAMR（热辅助磁记录）写头使用等离子体发生器中的激光激光表面等离激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。光辐射通过波导传输到等离子体发生器，该波导的光轴（中心线）相对于背面法线和ABS表面法线中的任一个或两者倾斜，以消除可能不利地影响的光辐射的反射反射激光的性能和性能。本公开的变型包括倾斜等离子体发生器，波导和激光二极管。

8. 发明授权

US09236068B2 Thin seeded Co/Ni multilayer film with perpendicular anisotropy for read head sensor stabilization 有权
标题翻译：具有垂直各向异性的薄晶种Co / Ni多层膜，用于读取头传感器稳定
公开(公告)号：US09236068B2
公开(公告)日：2016-01-12
申请号：US14048081
申请日：2013-10-08
申请人： Zhang Kunliang , Li Min , Zhou Yuchen , Zheng Min
发明人： Zhang Kunliang , Li Min , Zhou Yuchen , Zheng Min
IPC分类号： G11B5/127 , G11B5/33 , B82Y10/00 , B82Y25/00 , G11B5/39 , G11B5/31 , H01L43/12
CPC分类号： G11B5/332 , B82Y10/00 , B82Y25/00 , G11B5/315 , G11B5/3909 , G11B5/3912 , G11B5/3932 , G11B2005/3996 , Y10T29/49032 , Y10T29/49034 , Y10T29/49044 , Y10T29/49067 , Y10T428/1143 , Y10T428/115 , Y10T428/1157 , Y10T428/1171 , Y10T428/1193 , Y10T428/12819
摘要： A hard bias (HB) structure for producing longitudinal bias to stabilize a free layer in an adjacent spin valve is disclosed and includes a composite seed layer made of at least Ta and a metal layer having a fcc(111) or hcp(001) texture to enhance perpendicular magnetic anisotropy (PMA) in an overlying (Co/Ni)x laminated layer. The (Co/Ni)x HB layer deposition involves low power and high Ar pressure to avoid damaging Co/Ni interfaces and thereby preserves PMA. A capping layer is formed on the HB layer to protect against etchants in subsequent process steps. After initialization, magnetization direction in the HB layer is perpendicular to the sidewalls of the spin valve and generates an Mrt value that is greater than from an equivalent thickness of CoPt. A non-magnetic metal separation layer may be formed on the capping layer and spin valve to provide an electrical connection between top and bottom shields.
摘要翻译：公开了用于产生纵向偏压以稳定相邻自旋阀中的自由层的硬偏压（HB）结构，其包括至少由Ta制成的复合晶种层和具有fcc（111）或hcp（001）结构的金属层以提高上覆（Co / Ni）x叠层的垂直磁各向异性（PMA）。（Co / Ni）x HB层沉积涉及低功率和高Ar压力，以避免损坏Co / Ni界面，从而保留PMA。在HB层上形成覆盖层以防止后续工艺步骤中的蚀刻剂。在初始化之后，HB层中的磁化方向垂直于自旋阀的侧壁，并产生大于CoPt当量厚度的Mrt值。可以在封盖层和自旋阀上形成非磁性金属分离层，以提供顶部和底部屏蔽之间的电连接。

9. 发明授权

US09153259B2 Magnetic media access head with metal coating 有权
公开(公告)号：US09153259B2
公开(公告)日：2015-10-06
申请号：US14594790
申请日：2015-01-12
申请人： Quantum Corporation
发明人： Richard Henry Dee
IPC分类号： G11B5/255 , G11B5/40 , G11B5/31
CPC分类号： G11B5/255 , G11B5/1475 , G11B5/3106 , G11B5/40 , G11B5/84 , Y10T29/49032
摘要： Embodiments disclosed herein provide magnetic media access heads with metal coatings. In a particular embodiment, a magnetic media head for accessing magnetic media comprises a base substrate configured to support a magnetic head layer. The magnetic head layer is formed on the base substrate and configured to magnetically access the magnetic media. A metallic layer formed over the magnetic head layer and disposed between the magnetic head layer and the magnetic media when the magnetic media is positioned for access by the magnetic head layer.

10. 发明申请

US20150243306A1 Magnetic Pole Self-Annealing with Current Injection in Perpendicular Magnetic Recording (PMR) 有权
标题翻译：磁极自动退火在垂直磁记录（PMR）中的电流注入
公开(公告)号：US20150243306A1
公开(公告)日：2015-08-27
申请号：US14190415
申请日：2014-02-26
申请人： Headway Technologies, Inc.
发明人： Yan Wu , Kowang Liu
IPC分类号： G11B5/31 , G11B5/127 , G11B5/60
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/6082 , Y10T29/49032
摘要： A main pole structure is selectively annealed by attaching a lead to a back side thereof and electrically connecting a lead to a front end of a narrow pole tip portion such that when a first current passes between the leads there is resistive heating that raises the temperature in the narrow pole tip to 250° C. to 400° C. As a result, defects and stress level are reduced in the narrow pole tip portion without substantially increasing a temperature in adjacent regions including the read head. Annealing may be performed with a partially completed main pole structure or with a completely fabricated write head. Leads may be removed or left in place after annealing is finished. The extent of annealing may be determined by calculating a difference between resistance measurements taken before and after annealing.
摘要翻译：通过将引线附接到其背面并将引线电连接到窄极尖端部分的前端来选择性地退火主极结构，使得当第一电流在引线之间通过时，存在电阻加热，其将温度升高窄极尖端到250℃至400℃。结果，窄极尖部分中的缺陷和应力水平降低，而基本上不增加包括读取头的相邻区域中的温度。可以用部分完成的主极结构或完全制造的写头执行退火。退火完成后，引线可能被移除或留在原处。退火的程度可以通过计算退火前后的电阻测量值之差来确定。

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