Multi-writer head with a single operational writer
AssigneeSeagate Technology LLC
InventorsKurt Wiesen, Javier Guzman, Joseph Mundenar, Michael Conover
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Abstract
A method of forming a recording head for use with a data storage medium in a data storage device. The method includes forming first and second writers of different target geometries. A first recording measurement is performed on one or more storage media using the first writer. A second recording measurement is performed on the one or more storage media using the second writer. Based on a comparison of the first and second recording measurements to a predetermined quantity, either the first writer or the second writer is selected to be operational in the data storage device.
Claims20
A data storage device comprising:
- one or more data storage media;
- and
- at least one recording head having substantially coplanar first and second writers of different geometries, wherein one of the first or the second writer is configured to be operational to record user data on the one or more data storage media, and wherein the other one of the first or the second writer is configured to never be operational to store user data in the data storage device.
A data storage device comprising:
- one or more data storage media;
- and
- at least one recording head having a plurality of writers of differing geometries, with one of the plurality of writers configured to be operational to record user data on the one or more data storage media and the other ones of the plurality of writers configured to never be operational to store user data in the data storage device.
A data storage device comprising:
- one or more data storage media;
- and
- at least one recording head having a plurality of writers of different pre-selected geometries, with one of the plurality of writers configured to be operational to record user data on the one or more data storage media and the other ones of the plurality of writers configured to never be operational to store user data in the data storage device.
Dependencies are inferred from the claim text.