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1. 发明授权

US10629236B1 Slider gas-bearing surface designs to mitigate effects of smear in heat-assisted magnetic recording 有权
公开(公告)号：US10629236B1
公开(公告)日：2020-04-21
申请号：US16188260
申请日：2018-11-12
申请人： Western Digital Technologies, Inc.
发明人： Nan Liu , Weidong Huang
IPC分类号： G11B5/60 , G11B11/24 , G11B5/012 , G11B5/31 , G11B5/00
CPC分类号： G11B11/24 , G11B5/012 , G11B5/3133 , G11B5/6064 , G11B5/6082 , G11B5/6088 , G11B2005/0021
摘要： Disclosed herein are sliders having air-bearing surface (ABS) designs to mitigate the effects of smear on near-field transducers used in data storage devices, and data storage devices comprising such sliders. A slider comprises a leading edge, a trailing edge, a NFT, and an ABS with features to increase oxygen concentration near the NFT. The ABS comprises a channel configured to direct gas in a direction from the leading edge toward the trailing edge and a funnel region connected to the channel, disposed between the channel and the NFT, and configured to receive gas from the channel. In an ABS view of the slider, a width of the funnel region along a longitudinal axis passing through the NFT monotonically increases with distance from the NFT.

2. 发明授权

US12057147B2 Thin-film crystalline structure with surfaces having selected plane orientations 有权
公开(公告)号：US12057147B2
公开(公告)日：2024-08-06
申请号：US17511741
申请日：2021-10-27
申请人： Seagate Technology LLC
发明人： Tong Zhao , Li Wan , Michael Christopher Kautzky
IPC分类号： G11B5/31 , B81C1/00 , B82B1/00 , H01F10/30 , H01L21/3065 , H01L21/67 , B82Y10/00 , G11B5/00 , G11B11/24 , H01L21/3213
CPC分类号： G11B5/3163 , B81C1/00111 , B82B1/003 , G11B5/3133 , H01F10/30 , H01L21/3065 , H01L21/30655 , H01L21/67069 , B81C2201/0132 , B81C2201/0143 , B82Y10/00 , G11B2005/0021 , G11B11/24 , H01L21/32136
摘要： A method of forming a thin film structure involves performing one or more repetitions to form a template on a wafer. The repetitions include: depositing a layer of a template material to a first thickness T1; and ion beam milling the layer of the template material to remove thickness T2, where T2

3. 发明授权

US09047912B1 Write head mode optical mode converter using three-dimensional waveguide and dual-mode waveguide 有权
标题翻译：使用三维波导和双模波导的写头模式光模式转换器
公开(公告)号：US09047912B1
公开(公告)日：2015-06-02
申请号：US14492862
申请日：2014-09-22
申请人： Seagate Technology LLC
发明人： Chubing Peng , Yi-Kuei Ryan Wu
IPC分类号： G11B11/24 , G11B11/10
CPC分类号： G11B11/24 , G02B6/00 , G02B6/12002 , G02B6/1228 , G02B2006/12147 , G11B5/314 , G11B5/6088 , G11B11/10 , G11B2005/0021
摘要： A write head includes a three-dimensional waveguide extending along a light-propagation direction. The three-dimensional waveguide is configured to receive light from a light source at a fundamental transverse electric (TE) mode. The three-dimensional waveguide includes an input coupler, a curved middle section, and a terminating end. The input coupler is tapered between the light source and the curved middle section. The write head includes a dual-mode waveguide extending along the light propagation direction and has an edge proximate to and separated from the curved section by a gap at a coupling region. The three-dimensional waveguide excites a higher-order TE mode in the dual-mode waveguide via the coupling region.
摘要翻译：写头包括沿光传播方向延伸的三维波导。三维波导被配置为以基本横向电（TE）模式从光源接收光。三维波导包括输入耦合器，弯曲中间部分和终止端。输入耦合器在光源和弯曲中间部分之间呈锥形。写头包括沿着光传播方向延伸的双模波导，并且在耦合区域处具有靠近并与弯曲部分分离的边缘的间隙。三维波导通过耦合区域激发双模波导中的高阶TE模式。

4. 发明授权

US12094491B2 Heatsink structures for heat-assisted magnetic recording heads 有权
公开(公告)号：US12094491B2
公开(公告)日：2024-09-17
申请号：US18081527
申请日：2022-12-14
申请人： Seagate Technology LLC
发明人： Helene Parwana Habibi , Simon Bance , Martin Liam McGarry , Raul Horacio Andruet , Martin Giles Blaber , Weibin Chen , John Charles Duda , Mark Anthony Gubbins , Erik Jon Hutchinson , Vivek Krishnamurthy , Michael Allen Seigler , Chen Wang
IPC分类号： G11B11/105 , G11B5/187 , G11B5/31 , G11B5/40 , G11B11/24 , G11B13/08 , G11B5/00
CPC分类号： G11B11/10536 , G11B5/187 , G11B5/3106 , G11B5/3116 , G11B5/3133 , G11B5/3136 , G11B5/314 , G11B5/40 , G11B11/24 , G11B13/08 , G11B2005/0021
摘要： A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.

5. 发明授权

US09218827B1 Thermally-assisted magnetic recording head including a return path section 有权
标题翻译：热辅助磁记录头包括返回路径部分
公开(公告)号：US09218827B1
公开(公告)日：2015-12-22
申请号：US14335528
申请日：2014-07-18
申请人： Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Hideo Mamiya , Hironori Araki , Yukinori Ikegawa
发明人： Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Hideo Mamiya , Hironori Araki , Yukinori Ikegawa
IPC分类号： G11B11/00 , G11B5/17 , G11B5/00 , G11B11/24
CPC分类号： G11B5/17 , G11B5/3116 , G11B5/3123 , G11B5/3146 , G11B11/24 , G11B2005/0021
摘要： A return path section includes a first yoke portion located on the front side in the direction of travel of a recording medium relative to a main pole and in contact with the top surface of the main pole. A coil includes a plurality of coil elements extending to pass between a core of a waveguide and the first yoke portion. The plurality of coil elements include a specific coil element. The main pole rides over the specific coil element.
摘要翻译：返回路径部分包括位于记录介质相对于主极的行进方向的前侧上并与主极的顶表面接触的第一磁轭部分。线圈包括多个线圈元件，其延伸穿过波导的芯和第一轭部之间。多个线圈元件包括特定的线圈元件。主杆骑在特定的线圈元件上。

6. 发明申请

US20130230279A1 LIGHT DELIVERY WAVEGUIDE 有权
标题翻译：光交付波导
公开(公告)号：US20130230279A1
公开(公告)日：2013-09-05
申请号：US13774383
申请日：2013-02-22
申请人： SEAGATE TECHNOLOGY LLC
发明人： Chubing Peng , Edward Charles Gage , Kalman Pelhos
IPC分类号： G11B11/24 , G02B5/10 , G02B6/26
CPC分类号： G11B11/24 , G02B5/10 , G02B6/26 , G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A light source and a waveguide are mounted on a recording head slider. Light rays are emitted from the light source into the waveguide. The waveguide may include two core layers for light ray transmission. The first core layer enhances light coupling efficiency from the light source to the second core layer. The second core layer transforms a profile of the light. The waveguide may include a tapered portion with a narrow opening near the light source and a wider opening near the tapered portion exit. The light rays passing through the waveguide may be directed toward a collimating mirror. The collimating mirror makes the light rays parallel or nearly parallel and re-directs the light rays to a focusing mirror. The focusing mirror focuses the collimated light rays to a spot on a magnetic media disc.
摘要翻译：光源和波导安装在记录头滑块上。光线从光源发射到波导中。波导可以包括用于光线透射的两个核心层。第一核心层增强了从光源到第二核心层的光耦合效率。第二核心层转换光的轮廓。波导可以包括在光源附近具有窄开口的锥形部分和在锥形部分出口附近的较宽开口。穿过波导的光线可以指向准直镜。准直镜使光线平行或接近平行，并将光线重新引导到聚焦镜。聚焦镜将准直光线聚焦到磁性介质盘上的一个点上。

7. 发明授权

US10614850B1 Coating a near field transducer with a dielectric material from magnetic recording medium 有权
公开(公告)号：US10614850B1
公开(公告)日：2020-04-07
申请号：US16299360
申请日：2019-03-12
申请人： SEAGATE TECHNOLOGY LLC
发明人： Paul M. Jones , Martin Blaber , Xiaoding Ma , Yuhang Cheng
IPC分类号： G11B11/105 , G11B11/24 , C23C26/00 , G11B5/012 , G11B5/00 , G11B11/26 , G11B5/60
CPC分类号： G11B11/24 , C23C26/00 , G11B5/012 , G11B5/6088 , G11B11/26 , G11B2005/0021
摘要： Systems and methods for coating a near field transducer in a dielectric material are described. In one embodiment, the method may include forming a liquid solution comprising at least a first dielectric and a disk surface lubricant, forming a coating of the liquid solution on an outer surface of a storage medium based at least in part on dipping the storage medium in the liquid solution, and accumulating a first set of molecules of the first dielectric on a near field transducer (NFT) of a HAMR head based at least in part on evaporating a first portion of the first dielectric in the coating by performing a first HAMR writing operation that shines a laser on the coating.

8. 发明授权

US08730780B2 Light delivery waveguide 有权
标题翻译：光输送波导
公开(公告)号：US08730780B2
公开(公告)日：2014-05-20
申请号：US13774383
申请日：2013-02-22
申请人： Seagate Technology LLC
发明人： Chubing Peng , Edward Charles Gage , Kalman Pelhos
IPC分类号： G11B7/00
CPC分类号： G11B11/24 , G02B5/10 , G02B6/26 , G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A light source and a waveguide are mounted on a recording head slider. Light rays are emitted from the light source into the waveguide. The waveguide may include two core layers for light ray transmission. The first core layer enhances light coupling efficiency from the light source to the second core layer. The second core layer transforms a profile of the light. The waveguide may include a tapered portion with a narrow opening near the light source and a wider opening near the tapered portion exit. The light rays passing through the waveguide may be directed toward a collimating mirror. The collimating mirror makes the light rays parallel or nearly parallel and re-directs the light rays to a focusing mirror. The focusing mirror focuses the collimated light rays to a spot on a magnetic media disc.
摘要翻译：光源和波导安装在记录头滑块上。光线从光源发射到波导中。波导可以包括用于光线透射的两个核心层。第一核心层增强了从光源到第二核心层的光耦合效率。第二核心层转换光的轮廓。波导可以包括在光源附近具有窄开口的锥形部分和在锥形部分出口附近的较宽开口。穿过波导的光线可以指向准直镜。准直镜使光线平行或接近平行，并将光线重新引导到聚焦镜。聚焦镜将准直光线聚焦到磁性介质盘上的一个点上。

9. 发明授权

US08385183B2 Light delivery waveguide 有权
标题翻译：光输送波导
公开(公告)号：US08385183B2
公开(公告)日：2013-02-26
申请号：US12613458
申请日：2009-11-05
申请人： Chubing Peng , Edward Charles Gage , Kalman Pelhos
发明人： Chubing Peng , Edward Charles Gage , Kalman Pelhos
IPC分类号： G11B7/00
CPC分类号： G11B11/24 , G02B5/10 , G02B6/26 , G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A light source and a waveguide are mounted on a recording head slider. Light rays are emitted from the light source into the waveguide. The waveguide may include two core layers for light ray transmission. The first core layer enhances light coupling efficiency from the light source to the second core layer. The second core layer transforms a profile of the light. The waveguide may include a tapered portion with a narrow opening near the light source and a wider opening near the tapered portion exit. The light rays passing through the waveguide may be directed toward a collimating mirror. The collimating mirror makes the light rays parallel or nearly parallel and re-directs the light rays to a focusing mirror. The focusing mirror focuses the collimated light rays to a spot on a magnetic media disc.
摘要翻译：光源和波导安装在记录头滑块上。光线从光源发射到波导中。波导可以包括用于光线透射的两个核心层。第一核心层增强了从光源到第二核心层的光耦合效率。第二核心层转换光的轮廓。波导可以包括在光源附近具有窄开口的锥形部分和在锥形部分出口附近的较宽开口。穿过波导的光线可以指向准直镜。准直镜使光线平行或接近平行，并将光线重新引导到聚焦镜。聚焦镜将准直光线聚焦到磁性介质盘上的一个点上。

10. 发明申请

US20110103201A1 LIGHT DELIVERY WAVEGUIDE 有权
标题翻译：光交付波导
公开(公告)号：US20110103201A1
公开(公告)日：2011-05-05
申请号：US12613458
申请日：2009-11-05
申请人： Chubing Peng , Edward Charles Gage , Kalman Pelhos
发明人： Chubing Peng , Edward Charles Gage , Kalman Pelhos
IPC分类号： G11B11/00 , G02B6/26 , G02B6/10
CPC分类号： G11B11/24 , G02B5/10 , G02B6/26 , G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A light source and a waveguide are mounted on a recording head slider. Light rays are emitted from the light source into the waveguide. The waveguide may include two core layers for light ray transmission. The first core layer enhances light coupling efficiency from the light source to the second core layer. The second core layer transforms a profile of the light. The waveguide may include a tapered portion with a narrow opening near the light source and a wider opening near the tapered portion exit. The light rays passing through the waveguide may be directed toward a collimating mirror. The collimating mirror makes the light rays parallel or nearly parallel and re-directs the light rays to a focusing mirror. The focusing mirror focuses the collimated light rays to a spot on a magnetic media disc.
摘要翻译：光源和波导安装在记录头滑块上。光线从光源发射到波导中。波导可以包括用于光线透射的两个核心层。第一核心层增强了从光源到第二核心层的光耦合效率。第二核心层转换光的轮廓。波导可以包括在光源附近具有窄开口的锥形部分和在锥形部分出口附近的较宽开口。穿过波导的光线可以指向准直镜。准直镜使光线平行或接近平行，并将光线重新引导到聚焦镜。聚焦镜将准直光线聚焦到磁性介质盘上的一个点上。

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