US 12,094,491 B2
Heatsink structures for heat-assisted magnetic recording heads
Helene Parwana Habibi, Londonderry (GB); Simon Bance, Londonderry (GB); Martin Liam McGarry, Ballymena (GB); Raul Horacio Andruet, Woodbury, MN (US); Martin Giles Blaber, Minneapolis, MN (US); Weibin Chen, Edina, MN (US); John Charles Duda, Bloomington, MN (US); Mark Anthony Gubbins, Donegal (IE); Erik Jon Hutchinson, Eden Prairie, MN (US); Vivek Krishnamurthy, Edina, MN (US); Michael Allen Seigler, Eden Prairie, MN (US); and Chen Wang, Fremont, CA (US)
Assigned to Seagate Technology LLC, Fremont, CA (US)
Filed by Seagate Technology LLC, Fremont, CA (US)
Filed on Dec. 14, 2022, as Appl. No. 18/081,527.
Application 18/081,527 is a division of application No. 17/319,444, filed on May 13, 2021, granted, now 11,538,496.
Application 17/319,444 is a division of application No. 16/520,629, filed on Jul. 24, 2019, granted, now 11,011,201, issued on May 18, 2021.
Prior Publication US 2023/0110250 A1, Apr. 13, 2023
Int. Cl. G11B 11/105 (2006.01); G11B 5/187 (2006.01); G11B 5/31 (2006.01); G11B 5/40 (2006.01); G11B 11/24 (2006.01); G11B 13/08 (2006.01); G11B 5/00 (2006.01)
CPC G11B 11/10536 (2013.01) [G11B 5/187 (2013.01); G11B 5/3106 (2013.01); G11B 5/3116 (2013.01); G11B 5/3133 (2013.01); G11B 5/3136 (2013.01); G11B 5/314 (2013.01); G11B 5/40 (2013.01); G11B 11/24 (2013.01); G11B 13/08 (2013.01); G11B 2005/0021 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A recording head, comprising:
a write pole extending to an air-bearing surface and having a sloped first side in a down-track direction;
a near-field transducer positioned proximate the sloped first side of the write pole in the down-track direction, the near-field transducer comprising a peg coupled with a bottom portion; and
a heatsink structure adjacent to and in contact with the bottom portion and positioned between the near-field transducer and the write pole, the heatsink structure comprising:
a first surface;
an opposing surface that is sloped toward the first surface, a slope of the opposing surface conforming to a slope of the sloped first side of the write pole;
a first edge extending between the first surface and the opposing surface, the first edge proximate to the air-bearing surface; and
an opposing edge opposite the first edge extending between the first surface and the opposing surface, the opposing edge distal the air-bearing surface;
wherein the heatsink structure comprises a sloped extension that extends beyond the near-field transducer in a cross-track direction to define a wing shape, the sloped extension in contact with the bottom portion of the near-field transducer and conforming to the slope of the sloped first side of the write pole.