Heat assisted magnetic recording device with pre-heated write element
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United States of America Patent
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Apr 28, 2015
Grant Date -
Jan 30, 2014
app pub date -
Mar 14, 2013
filing date -
Jul 27, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus includes a write element configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. An energy source is configured to heat the portion of the media being magnetized by the write element. A preheat energizing current is applied to the write element during an interval before writing the data to the portion of the media. The preheat energizing current does not cause data to be written to the media and brings at least one of the write element and driver circuitry into thermal equilibrium prior to writing the data on the portion.
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