公开(公告)号：US10366720B2

公开(公告)日：2019-07-30

申请号：US15692957

申请日：2017-08-31

Applicant: Seagate Technology LLC

Inventor： Declan Macken ,  Paul Julio Sonda ,  Peter Kevin McGeehin

IPC: G11B5/60 ,  G11B5/31 ,  G11B5/255 ,  G11B5/40 ,  G11B5/39 ,  G11B5/127 ,  G11B5/00

Abstract: An apparatus comprises a slider comprising an air bearing surface (ABS) and configured for heat-assisted magnetic recording. The slider includes a writer and a reader at the ABS, a near-field transducer (NFT) proximate the writer, and an optical waveguide optically coupled to a laser source and the NFT. The slider further includes a sensor configured to contact and sense thermal asperities of a magnetic recording medium. The sensor is formed from one of Ru, Rh, Pd, Os, Ir, and Pt.

公开(公告)号：US20230114979A1

公开(公告)日：2023-04-13

申请号：US17961166

申请日：2022-10-06

Applicant: Seagate Technology LLC

Inventor： Robert D. Turner ,  Yuhang Cheng ,  Peter W. Kanas ,  Martin Liam McGarry ,  Peter Kevin McGeehin ,  Kevin R. Heim ,  Edward Charles Gage ,  Shaikh Mubassar Ali ,  Huazhou Lou

IPC: G11B33/14 ,  G11B13/08 ,  G11B5/012 ,  G11B5/31

Abstract: A heat-assisted magnetic recording device is disposed in a hermetically sealed enclosure. The device includes a slider comprising a reader, a writer, and an optical waveguide configured to couple light from a light source to a near-field transducer situated at or near an air bearing surface of the slider. The near-field transducer comprises an enlarged portion and a peg extending from the enlarged portion in a direction of the air bearing surface. A fill gas is provided within the enclosure. The fill gas comprises a mixture of a low-density, inert gas and at least one gas that oxidizes carbon, where the total carbon oxidizing gas concentration of the fill gas is 3-50% by volume. In certain embodiments, the fill gas comprises a hydrogen concentration sufficient to retard oxidation of the peg when the peg is at an operating temperature associated with write operations.

公开(公告)号：US10192577B1

公开(公告)日：2019-01-29

申请号：US15835808

申请日：2017-12-08

Applicant: Seagate Technology LLC

Inventor： Peter Kevin McGeehin ,  Mark Anthony Gubbins

IPC: G11B5/00 ,  G11B5/855 ,  G11B5/65

Abstract: An apparatus comprises a slider having a media-facing surface and that is configured for heat-assisted magnetic recording. The slider comprises a write pole, a heatsink layer, and a diffusing metal. The write pole includes two or more sides extending into the slider and a pole tip at the media-facing surface. The heatsink layer is proximate at least part of the two or more sides of the write pole, and a first portion of the heatsink layer is proximate the pole tip. The diffusing metal is disposed proximate the write pole.

公开(公告)号：US20210210121A1

公开(公告)日：2021-07-08

申请号：US17207027

申请日：2021-03-19

Applicant: Seagate Technology LLC

Inventor： Robert D. Turner ,  Yuhang Cheng ,  Peter W. Kanas ,  Martin Liam McGarry ,  Peter Kevin McGeehin ,  Kevin R. Heim ,  Edward Charles Gage ,  Shaikh Mubassar Ali ,  Huazhou Lou

IPC: G11B33/14 ,  G11B13/08 ,  G11B5/31 ,  G11B5/012

Abstract: A heat-assisted magnetic recording device is disposed in a hermetically sealed enclosure. The device includes a slider comprising a reader, a writer, and an optical waveguide configured to couple light from a light source to a near-field transducer situated at or near an air bearing surface of the slider. The near-field transducer comprises an enlarged portion and a peg extending from the enlarged portion in a direction of the air bearing surface. A fill gas is provided within the enclosure. The fill gas comprises a mixture of a low-density, inert gas and at least one gas that oxidizes carbon, where the total carbon oxidizing gas concentration of the fill gas is 3-50% by volume. In certain embodiments, the fill gas comprises a hydrogen concentration sufficient to retard oxidation of the peg when the peg is at an operating temperature associated with write operations.

公开(公告)号：US20190066719A1

公开(公告)日：2019-02-28

申请号：US15692957

申请日：2017-08-31

Applicant: Seagate Technology LLC

Inventor： Declan Macken ,  Paul Julio Sonda ,  Peter Kevin McGeehin

IPC: G11B5/40 ,  G11B5/60

CPC classification number: G11B5/6076 ,  G11B5/1278 ,  G11B5/255 ,  G11B5/3106 ,  G11B5/314 ,  G11B5/3967 ,  G11B5/40 ,  G11B5/607 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus comprises a slider comprising an air bearing surface (ABS) and configured for heat-assisted magnetic recording. The slider includes a writer and a reader at the ABS, a near-field transducer (NFT) proximate the writer, and an optical waveguide optically coupled to a laser source and the NFT. The slider further includes a sensor configured to contact and sense thermal asperities of a magnetic recording medium. The sensor is formed from one of Ru, Rh, Pd, Os, Ir, and Pt.

公开(公告)号：US09834850B1

公开(公告)日：2017-12-05

申请号：US15231272

申请日：2016-08-08

Applicant: Seagate Technology LLC

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

IPC: G11B5/60 ,  C25D7/12 ,  C25D5/02

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.

公开(公告)号：US11475924B2

公开(公告)日：2022-10-18

申请号：US17207027

申请日：2021-03-19

Applicant: Seagate Technology LLC

Inventor： Robert D. Turner ,  Yuhang Cheng ,  Peter W. Kanas ,  Martin Liam McGarry ,  Peter Kevin McGeehin ,  Kevin R. Heim ,  Edward Charles Gage ,  Shaikh Mubassar Ali ,  Huazhou Lou

IPC: G11B33/14 ,  G11B13/08 ,  G11B5/012 ,  G11B5/31 ,  G11B5/00

Abstract: A heat-assisted magnetic recording device is disposed in a hermetically sealed enclosure. The device includes a slider comprising a reader, a writer, and an optical waveguide configured to couple light from a light source to a near-field transducer situated at or near an air bearing surface of the slider. The near-field transducer comprises an enlarged portion and a peg extending from the enlarged portion in a direction of the air bearing surface. A fill gas is provided within the enclosure. The fill gas comprises a mixture of a low-density, inert gas and at least one gas that oxidizes carbon, where the total carbon oxidizing gas concentration of the fill gas is 3-50% by volume. In certain embodiments, the fill gas comprises a hydrogen concentration sufficient to retard oxidation of the peg when the peg is at an operating temperature associated with write operations.

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：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：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.