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US 8,149,539 B2Granted
Thin film structure with controlled lateral thermal spreading in the thin film
AssigneeSeagate Technology LLC
InventorsBin Lu, Ganping A. Ju, Julius K. Hohlfeld, Duane C. Karns, Amit V. Itagi, William A. Challener, Hua Zhou
Life of this patent
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Abstract
An apparatus includes a magnetic layer, a heat sink layer, and a thermal resistor layer between the magnetic layer and the heat sink layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include an interlayer positioned between the magnetic layer and the thermal resistor layer.
Claims19
An apparatus, comprising:
- a magnetic data storage layer;
- a heat sink layer;
- and
- a thermal resistor layer between the magnetic data storage layer and the heat sink layer to reduce heat flow from the heat sink layer to the magnetic data storage layer.
1 more element
A heat assisted magnetic recording medium, comprising:
- a data storage layer;
- a heat sink layer;
- and
- a thermal resistor layer between the data storage layer and the heat sink layer, wherein the thermal resistor layer is structured and arranged to reduce heat flow from the heat sink layer to the data storage layer.
1 more element
A system, comprising:
- a heat assisted magnetic recording head;
- and
- a heat assisted magnetic recording medium positioned adjacent the heat assisted magnetic recording head, the heat assisted magnetic recording medium comprising:
- a magnetic storage layer;
- a heat sink layer;
- and
- a thermal resistor layer between the magnetic layer and the heat sink layer.
4 more elements
Dependencies are inferred from the claim text.