公开(公告)号：US20210027809A1

公开(公告)日：2021-01-28

申请号：US16520629

申请日：2019-07-24

Applicant: Seagate Technology LLC

Inventor： 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: G11B11/105 ,  G11B11/24

Abstract: 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.

公开(公告)号：US10593355B1

公开(公告)日：2020-03-17

申请号：US16557428

申请日：2019-08-30

Applicant: Seagate Technology LLC

Inventor： Swaraj Basu ,  Prim Gangmei ,  Angela Moore ,  Mark Anthony Gubbins ,  Beverley R. McConnell

IPC: G11B5/11 ,  G11B5/23 ,  G11B5/31 ,  G11B5/127

Abstract: A recording head that includes a bearing surface and a write pole having a front surface that forms a portion of the bearing surface. The recording head also includes a side shield for the write pole. The side shield includes a low saturation magnetization cap layer having a front surface that forms a portion of the bearing surface. The side shield also includes a main side shield layer having a saturation magnetization that is higher than a saturation magnetization value of the low saturation magnetization cap layer.

公开(公告)号：US10431253B1

公开(公告)日：2019-10-01

申请号：US15598506

申请日：2017-05-18

Applicant: Seagate Technology LLC

Inventor： John Bernard McGurk ,  Kelly Elizabeth Hamilton ,  Aidan Dominic Goggin ,  Mark Anthony Gubbins

IPC: G02F1/035 ,  G02F1/295 ,  G02B6/26 ,  G02B6/42 ,  G11B11/24 ,  G02B6/125 ,  G02F1/01 ,  G11B5/00

Abstract: An input waveguide is disposed on a substrate-parallel plane and configured to receive light from an input surface. A mode converter joins the input waveguide at a junction away from the input surface. The mode converter converts the light from a fundamental mode to a higher-order mode. An input coupler is proximate to and overlapping the input waveguide parallel to the substrate-parallel plane. The input coupler extending from the input surface to the mode converter and has an asymmetric taper that transitions from a wider crosstrack dimension near the input surface to a narrower crosstrack dimension away from the input surface.

公开(公告)号：US10403311B1

公开(公告)日：2019-09-03

申请号：US15664628

申请日：2017-07-31

Applicant: Seagate Technology LLC

Inventor： Swaraj Basu ,  Prim Gangmei ,  Angela Moore ,  Mark Anthony Gubbins ,  Beverley R. McConnell

IPC: G11B5/11 ,  G11B5/23 ,  G11B5/31 ,  G11B5/127

Abstract: A recording head that includes a bearing surface and a write pole having a front surface that forms a portion of the bearing surface. The recording head also includes a side shield for the write pole. The side shield includes a low saturation magnetization cap layer having a front surface that forms a portion of the bearing surface. The side shield also includes a main side shield layer having a saturation magnetization that is higher than a saturation magnetization value of the low saturation magnetization cap layer.

公开(公告)号：US10388307B1

公开(公告)日：2019-08-20

申请号：US15956855

申请日：2018-04-19

Applicant: Seagate Technology LLC

Inventor： Simon Bance ,  Choon How Gan ,  Mark Anthony Gubbins

IPC: G11B5/31 ,  G11B5/60 ,  G11B5/00

Abstract: A recording head has a magnetic write transducer proximate a side of a plasmonic gap waveguide. The magnetic write transducer has a first write pole section that tapers in a crosstrack direction and downtrack direction to form a tapered tip. The first write pole section includes a high-moment, seed layer on one side. A second write pole section is coupled to the first write pole section. The second write pole section extends a second distance away from the media-facing surface less than that of the first write pole section. A tip of the second write pole section is tapered in the crosstrack and downtrack directions.

公开(公告)号：US10311898B1

公开(公告)日：2019-06-04

申请号：US15391906

申请日：2016-12-28

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Mark Anthony Gubbins ,  Peter Kevin McGeehin ,  Marcus Benedict Mooney ,  Michael James Hardy

IPC: G11B5/00 ,  G11B5/31

Abstract: Devices that include a near field transducer (NFT) the NFT includes a bulk of at least one plasmonic material and at least one sacrificial metal; and a surface layer that includes an oxide of the at least one sacrificial metal.

公开(公告)号：US20180315445A1

公开(公告)日：2018-11-01

申请号：US16020445

申请日：2018-06-27

Applicant: Seagate Technology LLC

Inventor： Mark Anthony Gubbins ,  Robert William Lamberton ,  Robert Edward Weinstein ,  James Joseph Touchton

IPC: G11B5/02 ,  G11B20/10 ,  B82Y10/00 ,  G11B5/31 ,  G11B5/74

CPC classification number: G11B5/02 ,  B82Y10/00 ,  G11B5/3133 ,  G11B5/746 ,  G11B5/82 ,  G11B20/10009 ,  G11B20/10222 ,  G11B20/1024 ,  G11B20/10388 ,  G11B20/10425 ,  G11B2005/0005 ,  G11B2220/252

Abstract: The presently disclosed technology teaches integrating disc drive electronics into a transducer head. Decreased electrical transit times and data processing times can be achieved by placing the electronics on or within the transducer head because electrical connections may be made physically shorter than in conventional systems. The electronics may include one or more of a control system circuit, a write driver, and/or a data buffer. The control system circuit generates a modified clock signal that has a fixed relation to phase and frequency of a bit-detected reference signal that corresponds to positions of patterned bits on the disc. The write driver writes outgoing data bits received from an external connection to off-head electronics directly to the writer synchronized with the modified clock signal. The data buffer stores and converts digital data bits sent from the off-head electronics to an analog signal that is synchronized with the modified clock signal.

公开(公告)号：US10041184B2

公开(公告)日：2018-08-07

申请号：US15809139

申请日：2017-11-10

Applicant: Seagate Technology LLC

Inventor： Peter Kevin McGeehin ,  Mark Anthony Gubbins ,  Marcus Benedict Mooney

IPC: G11B5/60 ,  C25D7/12 ,  C25D5/02

Abstract: Disclosed herein are methods of forming one or more transducer elements in a transducer region of a slider by electrodepositing one or more metal ions from an ionic liquid solvent, and related sliders.

公开(公告)号：US20180108373A1

公开(公告)日：2018-04-19

申请号：US15784479

申请日：2017-10-16

Applicant: Seagate Technology LLC

Inventor： Roberto Fernandez Garcia ,  Andres David Barbosa Neira ,  Michael James Hardy ,  Mark Anthony Gubbins

IPC: G11B5/48 ,  G02B6/122 ,  G11B13/08

CPC classification number: G11B5/4826 ,  G02B6/1226 ,  G02B6/1228 ,  G02B2006/12135 ,  G02B2006/12147 ,  G11B13/08 ,  G11B2005/0021

Abstract: An apparatus includes a slider configured for heat-assisted magnetic recording. An input coupler of the slider is configured to-receive light produced by a light source. A waveguide of the slider comprises a waveguide core tapering from a first portion having a first cross sectional width to a second portion having a second cross sectional width along the light propagation direction. The second cross sectional width being smaller than the first cross sectional width, and the second portion having an output end. The waveguide includes at least one cladding layer comprising a metallic material. The at least one cladding layer surrounds at least the core. The at least one cladding layer is configured to sink heat away from the waveguide core. The waveguide is configured to provide a surface plasmon-enhanced near-field radiation pattern proximate the output end in response to the light received at the transducer region.

公开(公告)号：US20180087175A1

公开(公告)日：2018-03-29

申请号：US15809139

申请日：2017-11-10

Applicant: Seagate Technology LLC

Inventor： Peter Kevin McGeehin ,  Mark Anthony Gubbins ,  Marcus Benedict Mooney

IPC: C25D7/12 ,  C25D5/02 ,  G11B5/60

CPC classification number: C25D7/123 ,  C25D3/665 ,  C25D5/022 ,  G11B5/3163 ,  G11B5/3173 ,  G11B5/6082 ,  H01L21/2885

Abstract: Disclosed herein are methods of forming one or more transducer elements in a transducer region of a slider by electrodepositing one or more metal ions from an ionic liquid solvent, and related sliders.