Data storage medium
AssigneeInternational Business Machines Corporation
InventorsUrs Duerig, Bernd Gotsmann, Walter Haeberle, Mark Lantz
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Abstract
A data storage medium is introduced. The data storage medium from which information is reproduced by scanning a surface of the medium with a tip positioned in contact therewith comprises a recording layer within which data values are determined by the topographical state at the data item location. The material of said recording layer comprises a component that is generating an etchant. The etchant removes the naturally occurring surface oxide layer of the tip which keeps the tip sharp and works against tip wear.
Claims14
A data storage medium,
- said medium comprising a recording layer, within which recording layer data values are determined by the topographical state at a data item location,
- said medium being exposed to a read/write tip for reading/writing data values from/on the recording layer,
- the material of said recording layer comprising a component generating an etchant for the tip material at the area of contact with the tip.
A data storage system comprising:
- a read/write head having a tip connected to a resistive path locally exerting heat at the tip when an electrical current is applied;
- and
- a data storage medium as claimed in any one of the preceding claims.
A data storage medium,
- said medium comprising a recording layer, within which recording layer data values are determined by the topographical state at a data item location,
- said medium being exposed to a read/write tip for reading/writing data values on/from the recording layer,
- the material of said recording layer comprising an etchant for the tip material.
Dependencies are inferred from the claim text.