Thin Film Structure with Controlled Lateral Thermal Spreading in the Thin Film
AssigneeSeagate Technology LLC
InventorsJulius Kurt Hohlfeld, Bin Lu, Ganping Ju, Amit V. Itagi, Timothy Klemmer, Yingguo Peng, Yukiko Kubota
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Abstract
An apparatus includes a non-metallic interlayer between a magnetic data storage layer and a heat sink layer, wherein interface thermal resistance between the interlayer and the heat sink layer is capable of reducing heat flow between the heat sink layer and the magnetic data storage layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include thermal resistor layer positioned between the interlayer and the heat sink layer.
Claims21
1-20. (canceled)
An apparatus, comprising:
- a magnetic data storage layer;
- a heat sink layer;
- and
- an interlayer between the magnetic data storage layer and the heat sink layer, the interlayer configured to facilitate a first heat flow from the magnetic data storage layer to the heat sink layer and a second heat flow from the heat sink layer to the magnetic data storage layer, wherein a rate of the first heat flow is greater than a rate of the second heat flow.
An apparatus, comprising:
- a magnetic data storage layer;
- a heat sink layer;
- and
- an interlayer comprising MgO between the magnetic data storage layer and the heat sink layer, the interlayer configured to encourage heat flow from the magnetic data storage layer to the heat sink layer and resist heat flow from the heat sink layer to the magnetic data storage layer.
An apparatus, comprising:
- a heat assisted magnetic recording head;
- and
- a heat assisted magnetic recording medium adjacent the recording head, the medium comprising:
- a magnetic data storage layer;
- a heat sink layer;
- and
- an interlayer between the magnetic data storage layer and the heat sink layer, the interlayer configured to encourage heat flow from the magnetic data storage layer to the heat sink layer and resist heat flow from the heat sink layer to the magnetic data storage layer.
Dependencies are inferred from the claim text.