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公开(公告)号：US09159340B1
公开(公告)日：2015-10-13
申请号：US14471933
申请日：2014-08-28
Applicant: Seagate Technology LLC
Inventor： Jiaoming Qiu , Jianhua Xue , Kevin Heim , Kirill Rivkin , Huaqing Yin , John Wolf , Yonghua Chen
CPC classification number: G11B5/17 , G11B5/1278 , G11B5/3123 , G11B5/313
Abstract: A write head having a main pole having a pole tip, the main pole having a leading side and a trailing side; and a coil structure around the main pole, the coil structure having no more than two active turns on the trailing side. A non-active, or dummy turn, may be present.
Abstract translation: 一种写头，具有具有极尖的主极，所述主极具有前侧和后侧; 以及围绕主极的线圈结构，线圈结构在后侧不超过两个有效转弯。 可能存在非活动或虚拟转弯。
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公开(公告)号：US09082428B1
公开(公告)日：2015-07-14
申请号：US14471959
申请日：2014-08-28
Applicant: Seagate Technology LLC
Inventor： Jianhua Xue , Jiaoming Qiu , Kirill Rivkin , Huaqing Yin , John Wolf , Yonghua Chen
CPC classification number: G11B5/17 , G11B5/1278 , G11B5/3116 , G11B5/3123 , G11B5/313
Abstract: A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.
Abstract translation: 一种写头，其主极具有靠近空气轴承表面（ABS）的极尖，所述主极具有前侧和后侧。 写头还包括具有从ABS凹陷的轭头的磁轭和缠绕在主极和磁轭上的螺旋线圈。 螺旋线圈具有第一匝，其前缘至少基本上与轭尖对齐。
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13.发明申请Trapezoidal Back Bias and Trilayer Reader Geometry to Enhance Device Performance 有权梯形反向偏置和三边形读取器几何以提高设备性能公开(公告)号：US20130128390A1
公开(公告)日：2013-05-23
申请号：US13743607
申请日：2013-01-17
Applicant: Seagate Technology LLC
Inventor： Jiaoming Qiu , Kaizhong Gao , Yonghua Chen , Beverley Craig , Zhongyan Wang , Vladyslav A. Vas'ko
CPC classification number: G11B5/127 , G11B5/39 , G11B5/3932
Abstract: A magnetoresistive sensor is generally disclosed. Various embodiments of a sensor can have at least a trilayer sensor stack biased with a back biasing magnet adjacent a back of the trilayer sensor. The back biasing magnet, the trilayer sensor stack, or both have substantially trapezoidal shapes to enhance the biasing field and to minimize noise.
Abstract translation: 通常公开磁阻传感器。 传感器的各种实施例可以具有至少三层传感器堆叠，该三层传感器堆叠与靠近三层传感器背面的背偏置磁体偏置。 背偏置磁体，三层传感器堆叠或两者具有基本上梯形的形状以增强偏置场并且使噪声最小化。
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公开(公告)号：US09384769B2
公开(公告)日：2016-07-05
申请号：US14867573
申请日：2015-09-28
Applicant: Seagate Technology LLC
Inventor： Jiaoming Qiu , Lei Lu , Xuelian Xu
CPC classification number: G11B5/6082 , G11B5/1272 , G11B5/1278 , G11B5/147 , G11B5/17 , G11B5/3116 , G11B5/3123
Abstract: A write head having a write pole with a tip portion defining a pole tip and a paddle portion extending from the tip portion away from the pole tip, the paddle portion defining a back edge. The write head also has a coil structure having at least two active turns crossing the paddle portion, wherein a back of the coil structure is no more than 1 micrometer past the back edge of the write pole. In some implementations, a length from the pole tip to the back edge is no more than 4.5 micrometers.
Abstract translation: 一种具有写入极的写入头，其具有限定极尖的尖端部分和从所述尖端部分远离所述极尖端延伸的桨状部分，所述桨形部分限定了后缘。 写头还具有线圈结构，该线圈结构具有至少两个与该桨叶部分相交的活动匝，其中线圈结构的背面经过写入极的后边缘不超过1微米。 在一些实施方案中，从极尖到后缘的长度不超过4.5微米。
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公开(公告)号：US20160133290A1
公开(公告)日：2016-05-12
申请号：US14867573
申请日：2015-09-28
Applicant: Seagate Technology LLC
Inventor： Jiaoming Qiu , Lei Lu , Xuelian Xu
CPC classification number: G11B5/6082 , G11B5/1272 , G11B5/1278 , G11B5/147 , G11B5/17 , G11B5/3116 , G11B5/3123
Abstract: A write head having a write pole with a tip portion defining a pole tip and a paddle portion extending from the tip portion away from the pole tip, the paddle portion defining a back edge. The write head also has a coil structure having at least two active turns crossing the paddle portion, wherein a back of the coil structure is no more than 1 micrometer past the back edge of the write pole. In some implementations, a length from the pole tip to the back edge is no more than 4.5 micrometers.
Abstract translation: 一种具有写入极的写入头，其具有限定极尖的尖端部分和从所述尖端部分远离所述极尖端延伸的桨状部分，所述桨形部分限定了后缘。 写头还具有线圈结构，该线圈结构具有至少两个与该桨叶部分相交的活动匝，其中线圈结构的背面经过写入极的后边缘不超过1微米。 在一些实施方案中，从极尖到后缘的长度不超过4.5微米。
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Patent Agency Ranking
公开(公告)号：US09286918B1
公开(公告)日：2016-03-15
申请号：US14798998
申请日：2015-07-14
Applicant: Seagate Technology LLC
Inventor： Jianhua Xue , Jiaoming Qiu , Kirill Rivkin , Huaqing Yin , John Wolf , Yonghua Chen
CPC classification number: G11B5/17 , G11B5/1278 , G11B5/3116 , G11B5/3123 , G11B5/313
Abstract: A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.
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公开(公告)号：US09147407B2
公开(公告)日：2015-09-29
申请号：US13797165
申请日：2013-03-12
Applicant: Seagate Technology LLC
Inventor： Wei Tian , Venkateswara Rao Inturi , Doug Lin , Huaqing Yin , Jiaoming Qiu
CPC classification number: G11B5/235 , G11B5/1278 , G11B5/187 , G11B5/23 , G11B5/232 , G11B5/3116 , G11B5/3143 , G11B5/3163 , G11B5/332 , G11B5/6082 , Y10T428/115 , Y10T428/1193
Abstract: In accordance with one embodiment, an apparatus includes a main pole layer of magnetic material; a second layer of magnetic material; a first gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material; a second gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material; wherein the second gap layer of non-magnetic material is disposed directly adjacent to the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. A method of manufacturing such a device is also described.
Abstract translation: 根据一个实施例，一种装置包括磁性材料的主极层; 第二层磁性材料; 设置在所述主极层和所述第二磁性材料层之间的非磁性材料的第一间隙层; 设置在主极层和第二磁性材料层之间的非磁性材料的第二间隙层; 其中所述非磁性材料的所述第二间隙层直接邻近所述第二磁性材料层设置。 根据一个实施例，这允许间隙用作第二层磁性材料的非磁性种子。 还描述了制造这种装置的方法。
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公开(公告)号：US09922671B2
公开(公告)日：2018-03-20
申请号：US14949638
申请日：2015-11-23
Applicant: Seagate Technology LLC
Inventor： Wei Tian , Venkateswara Rao Inturi , Dong Lin , Huaqing Yin , Jiaoming Qiu
IPC: G11B5/31 , G11B5/187 , G11B5/127 , G11B5/23 , G11B5/235 , G03F7/004 , B81C1/00 , C23F4/00 , C09K13/00
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US09899050B2
公开(公告)日：2018-02-20
申请号：US15376043
申请日：2016-12-12
Applicant: Seagate Technology LLC
Inventor： Jiaoming Qiu , Yonghua Chen , Ganping Ju , Thomas P. Nolan
IPC: G11B5/84 , G11B5/85 , C21D1/26 , B32B15/01 , C22C5/04 , C22F1/14 , C23C14/16 , C23C14/34 , C23C14/35 , C23C14/22 , C23C14/28 , C23C14/58 , G11B5/65 , G11B5/73 , G11B5/851
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: One embodiment described herein is directed to a method involving depositing a seed layer on a substrate, the seed layer comprising A1 phase FePt with a ratio of Pt of Fe greater than 1:1. A main layer is deposited on the seed layer, the main layer comprising A1 phase FePt with a ratio of Pt to Fe of approximately 1:1. A cap layer is deposited on the main layer, the cap layer comprising A1 phase FePt with a ratio of Pt to Fe of less than 1:1. The seed, main and cap layers are annealed to convert the A1 phase FePt to L10 phase FePt having a graded FePt structure of varying stoichimetry from approximately Fe50Pt50 adjacent a lower portion of the structure proximate the substrate to Fe>50Pt
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公开(公告)号：US20150371668A1
公开(公告)日：2015-12-24
申请号：US14839268
申请日：2015-08-28
Applicant: Seagate Technology LLC
Inventor： Wei Tian , Venkateswara Rao Inturi , Dong Lin , Huaqing Yin , Jiaoming Qiu
CPC classification number: G11B5/235 , G11B5/1278 , G11B5/187 , G11B5/23 , G11B5/232 , G11B5/3116 , G11B5/3143 , G11B5/3163 , G11B5/332 , G11B5/6082 , Y10T428/115 , Y10T428/1193
Abstract: An apparatus has a main pole layer of magnetic material, a second layer of magnetic material, a first gap layer of non-magnetic material between the main pole layer and the second layer of magnetic material, and a second gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material. The second gap layer of non-magnetic material can be directly adjacent to the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. A method of manufacturing such a device is also described.
Abstract translation: 一种装置具有磁性材料的主极层，第二层磁性材料，主磁极层和第二磁性材料层之间的非磁性材料的第一间隙层和非磁性材料的第二间隙层 设置在主极层和第二磁性材料层之间。 非磁性材料的第二间隙层可以直接邻近第二层磁性材料。 根据一个实施例，这允许间隙用作第二层磁性材料的非磁性种子。 还描述了制造这种装置的方法。
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