MAGNETIC HEAD HAVING A CONTACT DETECTION SENSOR
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United States of America Patent
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Issued Date -
Oct 24, 2013
app pub date -
Apr 19, 2012
filing date -
Apr 19, 2012
priority date (Note) -
Abandoned
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Abstract
A head for magnetic thermally assisted magnetic data recording, having a read element, a write element a heater element for controlling thermal protrusion of the read and write elements and a thermal sensor for detecting contact a portion of the head with a magnetic media. The thermal contact sensor is arranged so that the thermal conduction between the thermal contact sensor and the read element is substantially equal to the thermal conductivity between the thermal contact sensor and the write element. In this way the accuracy of the detection of thermal contact is maintained whether the read element makes contact with the disk or the write element makes contact with disk.
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