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US 8,630,041 B2Granted
Data storage assembly with diamond like carbon antireflective layer
AssigneeInternational Business Machines Corporation
InventorsAllen Keith Bates, Nils Haustein, Craig Anthony Klein, Sandra Lynn Waters, Daniel James Winarski
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Abstract
A data storage assembly is presented. The data storage assembly includes a bi-layered antireflective coating. An inner layer of the antireflective coating includes diamond like carbon. An outer layer is disposed over the inner layer.
Claims23
A data storage assembly comprising:
- a data storage medium;
- an outer surface comprising an antireflective coating comprising an inner layer and an outer layer disposed on said inner layer,
- a substrate;
- wherein said inner layer is a form of diamond like carbon having an index of refraction of 2.05 at a wavelength of 400 nm;
- said inner layer is disposed directly onto said substrate;
- said substrate is directly adjacent said data storage medium.
3 more elements
A data storage assembly comprising:
- a data storage medium;
- an antireflective coating comprising an inner layer, a middle layer, and an outer layer;
- a substrate;
- wherein:
- said middle layer is diamond like carbon having an index of refraction of 2.05 at a wavelength of 400 nm;
- and
- said inner layer is Magnesium Fluoride;
- said Magnesium Fluoride inner layer is disposed directly onto said substrate;
- and
- said diamond like carbon middle layer is disposed directly onto said Magnesium Fluoride inner layer.
7 more elements
A holographic data storage drive comprising a holographic data storage assembly, wherein said holographic data storage assembly comprises:
- a polycarbonate substrate;
- an antireflective coating comprising a diamond like carbon layer having an index of refraction of 2.05 at a wavelength of 400 nm;
- wherein said diamond like carbon layer is disposed directly onto said substrate.
Dependencies are inferred from the claim text.