Selectable magnetic writers of different target geometries for reducing performance variance
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United States of America Patent
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Jan 9, 2018
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app pub date -
Jan 15, 2016
filing date -
Dec 11, 2015
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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.
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