公开(公告)号：US11900963B2

公开(公告)日：2024-02-13

申请号：US17807248

申请日：2022-06-16

Applicant: Seagate Technology LLC

Inventor： Yuhang Cheng ,  Tae-Woo Lee ,  Michael A Seigler ,  Yang Wu

IPC: G11B13/08 ,  G11B5/31 ,  G11B5/48 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B13/08 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A heat-assisted magnetic recording head comprises a near-field transducer (NFT). The NFT comprises a near-field emitter configured to heat a surface of a magnetic disk, and a hybrid plasmonic disk. The hybrid plasmonic disk comprises a plasmonic region and a thermal region. The plasmonic region comprises a first material or alloy that is a plasmonic material or alloy. The thermal region comprises a second material or alloy that is different than the first material or alloy.

公开(公告)号：US20230410843A1

公开(公告)日：2023-12-21

申请号：US17807248

申请日：2022-06-16

Applicant: Seagate Technology LLC

Inventor： Yuhang Cheng ,  Tae-Woo Lee ,  Michael A Seigler ,  Yang Wu

IPC: G11B13/08 ,  G11B5/31 ,  G11B5/60 ,  G11B5/48

CPC classification number: G11B13/08 ,  G11B5/314 ,  G11B5/6088 ,  G11B5/4866 ,  G11B2005/0021

Abstract: A heat-assisted magnetic recording head comprises a near-field transducer (NFT). The NFT comprises a near-field emitter configured to heat a surface of a magnetic disk, and a hybrid plasmonic disk. The hybrid plasmonic disk comprises a plasmonic region and a thermal region. The plasmonic region comprises a first material or alloy that is a plasmonic material or alloy. The thermal region comprises a second material or alloy that is different than the first material or alloy.

公开(公告)号：US20220415353A1

公开(公告)日：2022-12-29

申请号：US17807252

申请日：2022-06-16

Applicant: Seagate Technology LLC

Inventor： Michael A Seigler ,  Tae-Woo Lee

IPC: G11B13/08 ,  G11B5/012

Abstract: A heat-assisted magnetic recording head includes a near-field transducer (NFT). The NFT includes a near-field emitter configured to heat a surface of a magnetic disk, and a heat sink. The heat sink includes at least one of rhodium, copper, tungsten, tantalum, iridium, platinum, ruthenium, nickel, or iron.

公开(公告)号：US11790944B2

公开(公告)日：2023-10-17

申请号：US17807260

申请日：2022-06-16

Applicant: Seagate Technology LLC

Inventor： Yuhang Cheng ,  Tae-Woo Lee ,  Michael A Seigler ,  Yang Wu

IPC: G11B13/08 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00

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

Abstract: A heat-assisted magnetic recording head includes a near-field transducer (NFT). The NFT includes a near-field emitter configured to heat a surface of a magnetic disk, and a plasmonic disk. The plasmonic disk is coupled to the near-field emitter and includes rhodium or iridium.

公开(公告)号：US11769527B2

公开(公告)日：2023-09-26

申请号：US17807252

申请日：2022-06-16

Applicant: Seagate Technology LLC

Inventor： Michael A Seigler ,  Tae-Woo Lee

IPC: G11B11/10 ,  G11B13/08 ,  G11B5/012 ,  G11B5/00

CPC classification number: G11B13/08 ,  G11B5/012 ,  G11B2005/0021

Abstract: A heat-assisted magnetic recording head includes a near-field transducer (NFT). The NFT includes a near-field emitter configured to heat a surface of a magnetic disk, and a heat sink. The heat sink includes at least one of rhodium, copper, tungsten, tantalum, iridium, platinum, ruthenium, nickel, or iron.