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公开(公告)号：US10657992B2
公开(公告)日：2020-05-19
申请号：US15938981
申请日：2018-03-28
摘要： An apparatus, according to one embodiment, includes: a plurality of tunnel valve read transducers arranged in an array extending along a read module. Each of the tunnel valve read transducers includes: a sensor structure having a cap layer, a free layer, a tunnel barrier layer, a reference layer and an antiferromagnetic layer, and electrically insulating layers on opposite sides of the sensor structure. Moreover, a height of the free layer measured in a direction perpendicular to a media bearing surface of the read module is less than a width of the free layer measured in a cross-track direction perpendicular to an intended direction of media travel.
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公开(公告)号：US20190180774A1
公开(公告)日：2019-06-13
申请号：US16274805
申请日：2019-02-13
摘要： An apparatus, according to one embodiment, includes: an array of write transducers. Each of the write transducers include: a first write pole having a pole tip extending from a media facing side of the first write pole, and a second write pole having a pole tip extending from a media facing side of the second write pole. Each of the write transducers also include a nonmagnetic write gap between the pole tips of the write poles, and a first high moment layer between the write gap and the pole tip of the second write pole. The first high moment layer further includes a higher magnetic moment than a magnetic moment of the pole tip of the second write pole. Other systems, methods, and computer program products are described in additional embodiments.
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3.发明授权公开(公告)号：US10170138B2
公开(公告)日：2019-01-01
申请号：US15476835
申请日：2017-03-31
摘要： A magnetic recording tape writing apparatus includes an array of write transducers extending along a common tape bearing surface. Each of the write transducers has a lower pole having a lower pole tip, a lower coil layer above the lower pole, an intermediate coil layer above the lower coil layer, and an upper coil layer above the intermediate coil layer. An upper pole is positioned above the upper coil layer, the upper pole having an upper pole tip. In one embodiment, a nonmagnetic write gap is positioned between the pole tips, a plane of deposition of the write gap extending between the intermediate coil layer and the lower coil layer. In another embodiment, a nonmagnetic write gap is positioned between the pole tips, a plane of deposition of the write gap extending between the intermediate coil layer and the upper coil layer.
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公开(公告)号：US09947344B2
公开(公告)日：2018-04-17
申请号：US15097174
申请日：2016-04-12
CPC分类号： G11B5/1877 , G11B5/00813 , G11B5/00826 , G11B5/3912 , G11B5/3948 , G11B5/3977
摘要： An apparatus according to one embodiment includes an array of magnetic read transducers each having a current-perpendicular-to-plane sensor, magnetic shields on opposite sides of the sensor in an intended direction of media travel thereacross, and a stabilizing layered structure between at least one of the magnetic shields and the sensor. The stabilizing layered structure has an antiferromagnetic layer, a first ferromagnetic layer adjacent the antiferromagnetic layer, and a second ferromagnetic layer. The antiferromagnetic layer pins a magnetization direction in the first ferromagnetic layer along an antiferromagnetic polarized direction of the antiferromagnetic layer. An antiparallel coupling layer is positioned between the ferromagnetic layers such that a magnetization direction in the second ferromagnetic layer is opposite the magnetization direction in the first ferromagnetic layer.
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5.发明授权公开(公告)号：US09747931B1
公开(公告)日：2017-08-29
申请号：US15238590
申请日：2016-08-16
CPC分类号： G11B5/3912 , G01R33/098 , G11B5/00813 , G11B5/3909 , G11B5/3977 , H01F10/3218 , H01L43/08 , H05K9/0075
摘要： In one general embodiment, an apparatus includes an array of magnetic transducers each having: a current-perpendicular-to-plane sensor, shields for providing magnetic shielding, and a stabilizing layered structure between at least one of the shields and the sensor. The stabilizing layered structure includes an antiferromagnetic layer, a first ferromagnetic layer adjacent the antiferromagnetic layer, a second ferromagnetic layer, and an antiparallel coupling layer between the ferromagnetic layers. A magnetization direction in the second ferromagnetic layer is opposite the magnetization direction in the first ferromagnetic layer. Each transducer also includes an electrical lead layer positioned between the sensor and the stabilizing layered structure and in electrical communication with the sensor. Each transducer also includes a spacer layer between the respective electrical lead layer and the stabilizing layered structure. A conductivity of the electrical lead layer is higher than a conductivity of the spacer layer.
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公开(公告)号：US09697943B2
公开(公告)日：2017-07-04
申请号：US15348015
申请日：2016-11-10
发明人： Robert E. Fontana, Jr. , William J. Gallagher , Philipp Herget , Eugene J. O'Sullivan , Lubomyr T. Romankiw , Naigang Wang , Bucknell C. Webb
CPC分类号： H01F10/3231 , C25D3/54 , C25D3/58 , C25D5/10 , C25D5/14 , C25D5/18 , C25D5/50 , C25D7/001 , C25D7/123 , C25D9/08 , C25D9/10 , C25D17/001 , G11B5/66 , H01F3/02 , H01F10/3236 , H01F10/324 , H01F10/325 , H01F10/3254 , H01F41/02
摘要： A laminating structure includes a first magnetic layer, a second magnetic layer, a first spacer disposed between the first and second magnetic layers and a second spacer disposed on the second magnetic layer.
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公开(公告)号：US09564165B2
公开(公告)日：2017-02-07
申请号：US15149727
申请日：2016-05-09
发明人： Robert E. Fontana, Jr. , William J. Gallagher , Philipp Herget , Eugene J. O'Sullivan , Lubomyr T. Romankiw , Naigang Wang , Bucknell C. Webb
IPC分类号： B32B15/00 , G11B5/66 , C25D7/00 , C25D7/12 , C25D3/54 , C25D5/10 , C25D5/14 , C25D9/10 , H01F10/32 , C25D3/58 , C25D5/18 , C25D5/50
CPC分类号： H01F10/3231 , C25D3/54 , C25D3/58 , C25D5/10 , C25D5/14 , C25D5/18 , C25D5/50 , C25D7/001 , C25D7/123 , C25D9/08 , C25D9/10 , C25D17/001 , G11B5/66 , H01F3/02 , H01F10/3236 , H01F10/324 , H01F10/325 , H01F10/3254 , H01F41/02
摘要： A laminating structure includes a first magnetic layer, a second magnetic layer, a first spacer disposed between the first and second magnetic layers and a second spacer disposed on the second magnetic layer.
摘要翻译： 层叠结构包括第一磁性层，第二磁性层，设置在第一和第二磁性层之间的第一间隔件和设置在第二磁性层上的第二间隔件。
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公开(公告)号：US09324495B2
公开(公告)日：2016-04-26
申请号：US14044112
申请日：2013-10-02
发明人： Robert E. Fontana, Jr. , William J. Gallagher , Philipp Herget , Eugene J. O'Sullivan , Lubomyr T. Romankiw , Naigang Wang , Bucknell C. Webb
摘要： A planar closed-magnetic-loop inductor and a method of fabricating the inductor are described. The inductor includes a first material comprising a cross-sectional shape including at least four segments, at least one of the at least four segments including a first edge and a second edge on opposite sides of an axial line through the at least one of the at least four segments. The first edge and the second edge are not parallel.
摘要翻译： 描述了一种平面闭环磁环电感器和一种制造电感器的方法。 电感器包括第一材料，其包括包括至少四个段的横截面形状，所述至少四个段中的至少一个段包括通过所述至少一个的轴线的相对侧上的第一边缘和第二边缘 至少四个细分。 第一边缘和第二边缘不平行。
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公开(公告)号：US10650848B2
公开(公告)日：2020-05-12
申请号：US16274829
申请日：2019-02-13
摘要： An apparatus, according to one embodiment, includes: an array of write transducers. Each of the write transducer include: a first write pole having a pole tip extending from a media facing side of the first write pole, and a second write pole having a pole tip extending from a media facing side of the second write pole. Each of the write transducers also include a nonmagnetic write gap between the pole tips of the write poles, a first high moment layer between the write gap and the pole tip of the second write pole, and a second high moment layer between the write gap and the pole tip of the first write pole. The first and second high moment layers each have a higher magnetic moment than magnetic moments of the pole tips of the second and first write poles, respectively.
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公开(公告)号：US20180247666A1
公开(公告)日：2018-08-30
申请号：US15938981
申请日：2018-03-28
CPC分类号： G11B5/3912 , G11B5/3906 , G11B5/3909 , G11B5/3932 , G11B5/3958 , G11B5/397 , G11B5/398 , G11B15/46
摘要： An apparatus, according to one embodiment, includes: a plurality of tunnel valve read transducers arranged in an array extending along a read module. Each of the tunnel valve read transducers includes: a sensor structure having a cap layer, a free layer, a tunnel barrier layer, a reference layer and an antiferromagnetic layer, and electrically insulating layers on opposite sides of the sensor structure. Moreover, a height of the free layer measured in a direction perpendicular to a media bearing surface of the read module is less than a width of the free layer measured in a cross-track direction perpendicular to an intended direction of media travel.
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