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21. 发明授权

US10297278B2 Material for use in a TMR read gap without adversely affecting the TMR effect 有权
公开(公告)号：US10297278B2
公开(公告)日：2019-05-21
申请号：US14449119
申请日：2014-07-31
申请人： HGST Netherlands B.V.
发明人： Satoru Araki , Diane L. Brown , Hiroaki Chihaya , Dustin W. Erickson , David J. Seagle
IPC分类号： G11B5/265 , G11B5/255 , B82Y10/00 , B82Y25/00 , C25D5/12 , G11B5/008 , G11B5/39 , G11B5/23
摘要： Structures and methods for fabrication servo and data heads of tape modules are provided. The servo head may have two shield layers spaced apart by a plurality of gap layers and a sensor. Similarly, the data head may have two shield layers spaced apart by a plurality of gap layers and a sensor. The distance between the shield layers of the servo head may be greater than the distance between the shield layers of the data head. The material of the gap layers may include tantalum or an alloy of nickel and chromium. The material for the gap layers permits deposition of gap layers with sufficiently small surface roughness to prevent distortion of the tape module and increase the stability of the tape module operation.

22. 发明申请

US20190051318A1 FILLED-GAP MAGNETIC RECORDING HEAD AND METHOD OF MAKING 审中-公开
公开(公告)号：US20190051318A1
公开(公告)日：2019-02-14
申请号：US16154596
申请日：2018-10-08
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Icko E.T. Iben , Jason Liang
IPC分类号： G11B5/23 , G11B5/255 , G11B5/008 , G11B5/31 , G11B5/29 , G11B5/265 , G11B5/187 , G11B5/10 , G11B5/40
摘要： A magnetic head, according to one embodiment, includes a rowbar substrate having a tape support surface and a gap surface at a substrate edge. A closure is positioned opposite the gap surface of the rowbar substrate, the closure forming a portion of the tape support surface. A recessed gap region is interposed between the gap surface of the rowbar substrate and the closure, the recessed gap region having a recessed gap profile that extends between the gap surface of the rowbar substrate and the closure, the recessed gap region having a transducer row with at least one magnetic sensor on the gap surface of the rowbar substrate. An insulation layer is positioned over the recessed gap profile of the recessed gap region.

23. 发明授权

US10141014B1 Write head with reduced trailing shield—side shield spacing 有权
公开(公告)号：US10141014B1
公开(公告)日：2018-11-27
申请号：US15662682
申请日：2017-07-28
申请人： Seagate Technology LLC
发明人： Kirill A. Rivkin , Wei Tian , XiaoHong Zhang , Yi Liu
IPC分类号： G11B5/23 , G11B5/31 , G11B5/127 , G11B5/11
摘要： A write head including a bearing surface and a write pole having a front surface that forms a portion of the bearing surface. The front surface has a leading edge, a trailing edge and side edges connecting the leading and trailing edges. The write head also includes side shields proximate to the side edges of the write pole, and a trailing shield over the write pole and the side shields. A trailing shield-write pole gap is present between the trailing edge and the trailing shield, and a trailing shield-side shield gap is present between the trailing shield and the side shields. The trailing shield side shield gap is substantially less than the trailing shield-write pole gap.

24. 发明授权

US09984707B2 Write pole wrap-around shield with gap lamination 有权
公开(公告)号：US09984707B2
公开(公告)日：2018-05-29
申请号：US15349459
申请日：2016-11-11
申请人： Seagate Technology LLC
发明人： Angela Moore , Aji Baby , Swaraj Basu , Marcus B. Mooney
IPC分类号： G11B5/31 , G11B5/115 , G11B5/127 , G11B5/23 , G11B5/235
CPC分类号： G11B5/115 , G11B5/1278 , G11B5/232 , G11B5/235 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： A data writer can have at least a write pole laterally disposed between first and second side shields and vertically disposed between a wrap-around shield and a front shield. The write pole may be separated from the side shields and the wrap-around shield by a lamination of first and second non-magnetic layers.

25. 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.

26. 发明授权

US09922671B2 Main pole layer with at least two sacrificial layers and a gap layer 有权
公开(公告)号：US09922671B2
公开(公告)日：2018-03-20
申请号：US14949638
申请日：2015-11-23
申请人： Seagate Technology LLC
发明人： Wei Tian , Venkateswara Rao Inturi , Dong Lin , Huaqing Yin , Jiaoming Qiu
IPC分类号： G11B5/31 , G11B5/187 , G11B5/127 , G11B5/23 , G11B5/235 , G03F7/004 , B81C1/00 , C23F4/00 , C09K13/00
CPC分类号： G11B5/3176 , B81C1/00611 , B81C2201/0109 , C09K13/00 , C23F4/00 , G03F7/0041 , G11B5/1278 , G11B5/187 , G11B5/232 , G11B5/235 , G11B5/3109 , G11B5/3116 , G11B5/3143 , G11B5/3163
摘要： A write head having a main pole, a gap layer, and at least two sacrificial layers. In accordance with one embodiment, a method includes depositing a non-magnetic gap layer of material above a main pole layer of magnetic material; depositing a sacrificial layer of material above the non-magnetic gap layer of material; etching a portion of the sacrificial layer of material while not entirely removing the sacrificial layer of material; and depositing additional sacrificial material to the etched sacrificial layer.

27. 发明授权

US09355656B1 Dual purpose tape write transducer 有权
标题翻译：双用途磁带写传感器
公开(公告)号：US09355656B1
公开(公告)日：2016-05-31
申请号：US14644534
申请日：2015-03-11
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Robert E. Fontana, Jr. , Pierre-Olivier Jubert
IPC分类号： G11B5/23 , G11B5/21 , G11B5/187
CPC分类号： G11B5/23 , G11B5/00821 , G11B5/1278 , G11B5/1871 , G11B5/4984
摘要： A tape write transducer includes a first yoke member, a second yoke member and a shield member arranged in a row so that row includes two gaps: an inter-yoke-member gap (between the two yoke members), and a shield-member gap (between one of the yoke members and the shield member). In operations using an underlayerless tape, the magnetic field in the inter-yoke member gap causes magnetic transitions to be written to the underlayerless recording medium in a point along the tape that is in vicinity to the inter-yoke-member gap. In operations using an underlayer tape, the magnetic field in the shield-member gap causes magnetic transitions to be written to the underlayer tape recording layer at a point along the tape that is in vicinity to the shield-member gap.
摘要翻译：磁带写传感器包括：第一磁轭构件，第二磁轭构件和屏蔽构件，其排列成一行，使得行包括两个间隙：轭架间间隙（两个轭构件之间）和屏蔽构件间隙（在轭构件和屏蔽构件中的一个之间）。在使用无底胶带的操作中，叉间构件间隙中的磁场使得在沿着与轭架间间隙附近的带的一点上将磁转变写入无底层记录介质。在使用底层带的操作中，屏蔽构件间隙中的磁场使得沿着沿着屏蔽构件间隙附近的带的点将磁转变写入下层磁带记录层。

28. 发明授权

US09349393B2 Magnetic writer having an asymmetric gap and shields 有权
标题翻译：具有非对称间隙和屏蔽的磁性写入器
公开(公告)号：US09349393B2
公开(公告)日：2016-05-24
申请号：US14847634
申请日：2015-09-08
申请人： Western Digital (Fremont), LLC
发明人： Yi Zheng , Ming Jiang
IPC分类号： G11B5/127 , G11B5/23 , G11B5/115 , G11B5/60
CPC分类号： G11B5/23 , G11B5/115 , G11B5/1278 , G11B5/232 , G11B5/3116 , G11B5/315 , G11B5/3163 , G11B5/6082 , Y10T29/49044
摘要： A method and system provide a magnetic transducer. An intermediate layer including multiple sublayers is provided. A trench is formed in the intermediate layer. A main pole having a bottom, a top wider than the bottom, a first side and a second side opposite to the first side is provided in the trench. An asymmetric gap is provided along the first and second sides of the main pole. The asymmetric gap terminates closer to the top of the main pole along the first side than on the second side. The asymmetric gap has a first thickness along the first side and a second thickness different from the first thickness along the second side. An asymmetric shield is provided on the asymmetric gap. The asymmetric shield includes a half side shield having a bottom between the top and the bottom of the main pole and terminating on the asymmetric gap.
摘要翻译：一种方法和系统提供一种磁换能器。提供包括多个子层的中间层。在中间层中形成沟槽。在沟槽中设置有具有底部，比底部宽的顶部，与第一侧相对的第一侧和第二侧的主极。沿着主极的第一和第二侧设置非对称间隙。非对称间隙沿着第一侧比在第二侧更靠近主极的顶部。非对称间隙具有沿着第一侧的第一厚度和沿着第二侧不同于第一厚度的第二厚度。在非对称间隙上提供非对称屏蔽。不对称屏蔽包括半侧屏蔽，其具有在主极的顶部和底部之间的底部，并终止在不对称间隙上。

29. 发明授权

US09324350B2 High density timing based servo format for use with tilted transducer arrays 有权
标题翻译：用于倾斜传感器阵列的高密度定时伺服格式
公开(公告)号：US09324350B2
公开(公告)日：2016-04-26
申请号：US14671819
申请日：2015-03-27
申请人： GlobalFoundries U.S. 2 LLC
发明人： Robert G. Biskeborn , Mark A. Lantz
IPC分类号： G11B5/584 , G11B5/008 , G11B5/68 , G11B5/23 , G11B5/48 , G11B20/12
CPC分类号： G11B5/584 , G11B5/00817 , G11B5/00826 , G11B5/23 , G11B5/4893 , G11B5/68 , G11B20/1201
摘要： An apparatus according to one embodiment includes a magnetic head having servo writers each configured to write a servo pattern having a first magnetic bar and a third magnetic bar oriented to form a chevron-like pattern with the first magnetic bar, the first magnetic bars each having a longitudinal axis oriented at a first angle between 2 and 88 degrees from an intended direction of tape travel thereacross, the third magnetic bars each having a longitudinal axis oriented at a second angle between 2 and 88 degrees from the intended direction of tape travel thereacross, the second angle having a different numerical absolute value than the first angle. The apparatus also includes a drive mechanism for passing the magnetic recording tape over the magnetic head, and a controller electrically coupled to the magnetic head.
摘要翻译：根据一个实施例的装置包括具有伺服写入器的磁头，每个磁头被配置为写入具有第一磁条的伺服模式和第三磁性棒，以与第一磁棒形成人字形图案，第一磁条各自具有所述纵向轴线相对于预期的带状行进方向定向成2度至88度之间的第一角度，所述第三磁性棒各自具有从预期的磁带行进方向的2度到88度之间的第二角度定向的纵向轴线，所述第二角度具有与所述第一角度不同的数值绝对值。该装置还包括用于使磁记录带穿过磁头的驱动机构，以及电耦合到磁头的控制器。

30. 发明申请

US20150364147A1 FILLED-GAP MAGNETIC RECORDING HEAD AND METHOD OF MAKING 审中-公开
标题翻译：填充磁隙磁记录头及其制作方法
公开(公告)号：US20150364147A1
公开(公告)日：2015-12-17
申请号：US14835644
申请日：2015-08-25
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Icko E.T. Iben , Jason Liang
IPC分类号： G11B5/23
CPC分类号： G11B5/23 , G11B5/00821 , G11B5/00826 , G11B5/10 , G11B5/1871 , G11B5/232 , G11B5/255 , G11B5/2651 , G11B5/295 , G11B5/3106 , G11B5/3169 , G11B5/40
摘要： A magnetic head, according to one embodiment, includes a rowbar substrate having a tape support surface and a gap surface at a substrate edge. A closure is positioned opposite the gap surface of the rowbar substrate, the closure forming a portion of the tape support surface. A recessed gap region is interposed between the gap surface of the rowbar substrate and the closure, the recessed gap region having a recessed gap profile that extends between the gap surface of the rowbar substrate and the closure, the recessed gap region having a transducer row with at least one magnetic sensor on the gap surface of the rowbar substrate. An insulator layer is positioned over the recessed gap profile of the recessed gap region.
摘要翻译：根据一个实施例，磁头包括具有带支撑表面和在基板边缘处的间隙表面的划线条基板。闭合件与行杆基板的间隙表面相对定位，封闭件形成带支撑表面的一部分。凹入的间隙区域被插入在划线条基板的间隙表面和封闭件之间，凹陷间隙区域具有在行列条基板的间隙表面和封闭件之间延伸的凹陷间隙分布，凹陷间隙区域具有换能器排，至少一个磁性传感器位于行列底座的间隙表面上。绝缘体层位于凹陷间隙区域的凹陷间隙轮廓上。

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