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公开(公告)号：US10255933B2
公开(公告)日：2019-04-09
申请号：US15813374
申请日：2017-11-15
Applicant: Seagate Technology LLC
Inventor： Kurt Wiesen , Javier Guzman , Joseph Mundenar , Michael Conover
Abstract: A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.
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公开(公告)号：US20190221229A1
公开(公告)日：2019-07-18
申请号：US16360770
申请日：2019-03-21
Applicant: Seagate Technology LLC
Inventor： Kurt Wiesen , Javier Guzman , Joseph Mundenar , Michael Conover
CPC classification number: G11B5/1272 , G11B5/012 , G11B5/1278 , G11B5/1335 , G11B5/265 , G11B5/3116 , G11B5/3163 , G11B5/4886 , G11B5/50 , G11B7/00 , G11B20/10388 , G11B27/36
Abstract: A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.
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3.发明授权公开(公告)号：US09865301B1
公开(公告)日：2018-01-09
申请号：US14996833
申请日：2016-01-15
Applicant: Seagate Technology LLC
Inventor： Kurt Wiesen , Javier Guzman , Joseph Mundenar , Michael Conover
CPC classification number: G11B5/1272 , G11B5/1335 , G11B5/3116 , G11B5/3163 , G11B7/00 , G11B20/10388 , G11B27/36
Abstract: A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.
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4.发明授权公开(公告)号：US10559319B2
公开(公告)日：2020-02-11
申请号：US16360770
申请日：2019-03-21
Applicant: Seagate Technology LLC
Inventor： Kurt Wiesen , Javier Guzman , Joseph Mundenar , Michael Conover
Abstract: A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.
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公开(公告)号：US09495979B1
公开(公告)日：2016-11-15
申请号：US14871597
申请日：2015-09-30
Applicant: Seagate Technology LLC
Inventor： Xiaohong Zhang , Wei Tian , Zhe Shen , Dong Lin , Joseph Mundenar
CPC classification number: G11B5/3912 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/3163
Abstract: Implementations disclosed herein provide a method of forming a first layer of a front shield in a magnetic recording head, depositing an active shield control (ASC) device on the first layer, and forming a second layer of the front shield on top of the ASC device and the first layer of the front shield. In another implementation, an apparatus includes a write pole, and a two layer front shield formed on the write pole, including an ASC device between the two layers of the front shield.
Abstract translation: 本文公开的实施方案提供了一种在磁记录头中形成前屏蔽的第一层的方法，在第一层上沉积主动屏蔽控制（ASC）装置，以及在ASC装置的顶部上形成前屏蔽的第二层 和前盾的第一层。 在另一个实施方式中，一种装置包括一个写入极和形成在写入极上的两层前屏蔽，其中包括在前屏蔽层的两层之间的ASC装置。
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Patent Agency Ranking
公开(公告)号：US20140147702A1
公开(公告)日：2014-05-29
申请号：US13689409
申请日：2012-11-29
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Venkateswara Rao Inturi , Wei Tian , Joseph Mundenar
CPC classification number: G11C11/14 , B82Y25/00 , G11B5/3163 , G11B5/3906 , G11B5/647 , G11B5/653 , G11B5/84 , H01F41/22
Abstract: An apparatus and associated method are generally described as a thin film exhibiting a tuned anisotropy and magnetic moment. Various embodiments may form a magnetic layer that is tuned to a predetermined anisotropy and magnetic moment through deposition of a material on a substrate cooled to a predetermined substrate temperature.
Abstract translation: 通常将装置和相关方法描述为呈现调谐各向异性和磁矩的薄膜。 各种实施例可以形成通过将材料沉积在冷却到预定衬底温度的衬底上而被调谐到预定的各向异性和磁矩的磁性层。
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公开(公告)号：US09972345B1
公开(公告)日：2018-05-15
申请号：US14974743
申请日：2015-12-18
Applicant: Seagate Technology LLC
Inventor： Wei Tian , Hauqing Yin , Lei Lu , Yong Luo , Joseph Mundenar
CPC classification number: G11B5/1272 , G11B5/112 , G11B5/1278
Abstract: A method includes depositing a layer of pole material on a substrate. The layer of pole material has a bottom surface that is adjacent to the substrate and a top surface that is opposite the bottom surface. A masking material is deposited over a portion of the top surface. Material from the pole material unprotected by the masking material is removed to form a write pole having first and second side walls. At least a portion of a trench formed by removal of the material from the layer of pole material is filled with a sacrificial material. The mask and a portion of the write pole at the top surface are removed to form a beveled trailing edge surface. The sacrificial material is then removed. Front shield gap material is deposited over the beveled trailing edge surface and over portions of the side walls.
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公开(公告)号：US20180082714A1
公开(公告)日：2018-03-22
申请号：US15813374
申请日：2017-11-15
Applicant: Seagate Technology LLC
Inventor： Kurt Wiesen , Javier Guzman , Joseph Mundenar , Michael Conover
CPC classification number: G11B5/1272 , G11B5/012 , G11B5/1278 , G11B5/1335 , G11B5/265 , G11B5/3116 , G11B5/3163 , G11B5/4886 , G11B5/50 , G11B7/00 , G11B20/10388 , G11B27/36
Abstract: A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.
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公开(公告)号：US09640204B2
公开(公告)日：2017-05-02
申请号：US15338729
申请日：2016-10-31
Applicant: Seagate Technology LLC
Inventor： Xiaohong Zhang , Wei Tian , Zhe Shen , Dong Lin , Joseph Mundenar
CPC classification number: G11B5/3912 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/3163
Abstract: Implementations disclosed herein provide an apparatus comprising a write pole, and a two-layer front shield formed on the write pole, the front shield comprising, a first dielectric material formed on the first layer of the front shield, an active shield control (ASC) device formed between the two layers of the front shield on the first dielectric material configured to synchronize the response to a magnetomotive force (MMF) of a write pole and the front shield, and a second dielectric material formed on the ASC device, wherein the second layer of the front shield is formed only on top of the second dielectric material and the first layer of the front shield.
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公开(公告)号：US11031032B1
公开(公告)日：2021-06-08
申请号：US15477211
申请日：2017-04-03
Applicant: Seagate Technology LLC
Inventor： Venkateswara Inturi , Joseph Mundenar
Abstract: A method of forming a magnetic element. The method includes cooling a substrate to a cryogenic temperature. The method further includes depositing a magnetic layer with a grain refining dopant on the substrate. The magnetic layer with the grain refining dopant deposited on the substrate cooled to the cryogenic temperature has a magnetic moment that is greater than 2 Tesla and very soft magnetic properties.
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