公开(公告)号：US11646058B1

公开(公告)日：2023-05-09

申请号：US17657167

申请日：2022-03-30

Applicant: Seagate Technology LLC

Inventor： Martin Giles Blaber ,  Michael Allen Siegler ,  James G Wessel ,  YuHang Cheng ,  Scott M Franzen

IPC: G11B13/08 ,  G11B5/31 ,  G11B5/00

CPC classification number: G11B13/08 ,  G11B5/3106 ,  G11B2005/0021

Abstract: A heat-assisted magnetic recording head includes a near-field transducer, a heat sink, a diffuser, and a diffusion barrier. The near-field transducer is configured to produce a hot spot on a proximate magnetic disk. The heat sink is configured to draw heat away from the near-field transducer. The heat sink is disposed in a down-track direction relative to and coupled to the near-field transducer. The diffuser is configured to draw heat away from the heat sink. The diffuser is disposed in a down-track direction relative to the heat sink. The diffusion barrier includes a metal. The diffusion barrier is disposed between and coupled to the heat sink and the diffuser.

公开(公告)号：US11798580B1

公开(公告)日：2023-10-24

申请号：US17809607

申请日：2022-06-29

Applicant: Seagate Technology LLC

Inventor： Nils Jan Gokemeijer ,  James G Wessel ,  Tyler Lenn Perry ,  Joseph M Stephan

IPC: G11B5/00 ,  G11B11/105 ,  G11B5/012 ,  G11B13/08 ,  G11B7/126 ,  G11B5/31 ,  G11B5/60

CPC classification number: G11B5/012 ,  G11B5/314 ,  G11B5/6088 ,  G11B7/126 ,  G11B13/08 ,  G11B2005/0021

Abstract: A heat-assisted magnetic recording head includes a slider body, a laser, a submount, and a laser heater. The slider body is configured to contain components of the heat-assisted magnetic recording head. The laser is configured to emit electromagnetic radiation. The submount is configured to couple the laser to the slider body. The laser heater is configured to apply heat to the laser. The laser heater disposed on a surface of the slider body.