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US 2010/0062282 A1Published application
Bit patterned media
AssigneeSeagate Technology LLC
InventorsBing K. Yen, Jim Hennessey, Eric Freeman, Kim Yang Lee, David S. Kuo, Mark Ostrowski
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Abstract
The invention relates to bit patterned recording media having a stop layer for chemical mechanical polishing. One embodiment of the present invention is a method of manufacturing a magnetic recording medium comprising the step of planarizing by chemical mechanical polishing until the stop layer is reached. The present invention also provides a magnetic recording medium having a stop layer.
Claims21
A magnetic recording medium comprising:
- a substrate;
- a magnetic layer supported by the substrate, wherein the magnetic layer comprises an array of discrete magnetic bits separated by a non-magnetic filler material;
- and
- a stop layer for chemical mechanical polishing.
1 more element
A method of manufacturing a magnetic recording medium comprising:
- forming a magnetic layer upon a substrate, the magnetic layer comprising an array of discrete magnetic bits separated by a non-magnetic filler material;
- depositing a stop layer upon the magnetic layer;
- depositing an excess layer upon the stop layer;
- and
- planarizing by chemical mechanical polishing until the stop layer is reached.
2 more elements
Dependencies are inferred from the claim text.