Magnetic recording media with a multiple-layer lubricant
AssigneeSeagate Technology LLC
InventorsXiaoding Ma, Michael Stirniman, Huan Tang, Jing Gui
Life of this patent
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Abstract
A magnetic recording medium with a dual-layer lubricant for better and faster mobility of a lubricant to ensure rapid healing of areas of the medium that have been depleted of the lubricant is disclosed.
Claims20
A device comprising a base layer, said base layer being a carbon overcoat, a first layer and a second layer, in this order, the base layer comprising binding sites on a surface of the base layer, the first layer comprising a lubricant mobility enhancer and the second layer comprising a lubricant, wherein the device is a component of a recording device and a majority of binding sites capable of pair-wise binding to molecules of the lubricant are bound to molecules of the lubricant mobility enhancer, wherein the first layer provides a surface mobility to the second layer that is higher than a surface mobility of the second layer without the first layer, and further wherein a formula of a molecule of the lubricant has a same group at both ends of the formula.
A method of manufacturing a device comprising depositing a base layer, said base layer being a carbon overcoat, depositing a first layer and depositing a second layer, in this order, the base layer comprising binding sites on a surface of the base layer, the first layer comprising a lubricant mobility enhancer and the second layer comprising a lubricant, wherein the device is a component of a recording device and a majority of binding sites capable of pair-wise binding to molecules of the lubricant are bound to molecules of the lubricant mobility enhancer, wherein the first layer provides a surface mobility to the second layer that is higher than a surface mobility of the second layer without the first layer, and further wherein a formula of a molecule of the lubricant has a same group at both ends of the formula.
A device comprising a base layer, said base layer being a carbon overcoat, a first layer and a second layer, in this order, the base layer comprising binding sites on a surface of the base layer, the first layer comprising a lubricant mobility enhancer and the second layer comprising a lubricant, wherein the device is a component of a recording device, wherein the first layer provides a surface mobility to the second layer that is higher than a surface mobility of the second layer without the first layer, and further wherein a formula of a molecule of the lubricant has a same group at both ends of the formula.
A method of manufacturing a device comprising depositing a base layer, said base layer being a carbon overcoat, depositing a first layer and depositing a second layer, in this order, the base layer comprising binding sites on a surface of the base layer, the first layer comprising a lubricant mobility enhancer and the second layer comprising a lubricant, wherein the device is a component of a recording device, wherein the first provides a surface mobility to the second layer that is higher than a surface mobility of the second layer without the first layer, and further wherein a formula of a molecule of the lubricant has a same group at both ends of the formula.
Dependencies are inferred from the claim text.