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US 9,263,076 B1Granted
Heatsink for heat assisted magnetic recording media
AssigneeSeagate Technology LLC
InventorsYingguo Peng, Kai Chieh Chang, Yinfeng Ding, Ganping Ju, Yukiko Kubota, Timothy J. Klemmer, Jan-Ulrich Thiele, Qihong Wu, Xiaobin Zhu
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Abstract
A magnetic stack includes a heatsink layer comprising (200) Cu or (200) CuX, a magnetic recording layer, and an interlayer disposed between the heatsink layer and the magnetic recording layer.
Claims19
A stack, comprising:
- a heatsink layer comprising (200) Cu or (200) CuX;
- a magnetic recording layer;
- an interlayer between the heatsink layer and the magnetic recording layer;
- and
- an additional heatsink layer having a (200) orientation adjacent the heatsink layer;
- wherein the material of the additional heatsink layer differs from that of the heatsink layer.
3 more elements
A method, comprising:
- sputtering Cu in a nitrogen environment to form a layer comprising copper nitride phase;
- forming an interlayer on the heatsink layer;
- forming a magnetic recording layer on the interlayer;
- releasing nitrogen from the copper nitride phase to form a heatsink layer of (200) Cu or (200) CuX;
- and
- forming an additional heatsink layer having a (200) orientation between the heatsink layer and the interlayer;
- wherein the material of the additional heatsink layer differs from that of the heatsink layer.
4 more elements
Dependencies are inferred from the claim text.