Method for testing magnetic hard disk or magnetic head
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United States of America Patent
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-
Sep 19, 2006
Grant Date -
Nov 10, 2005
app pub date -
Sep 12, 2003
filing date -
Sep 13, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A testing method for a magnetic hard disk or a magnetic head in a test system includes a moving step in which the magnetic head, which moves to fly closely over the magnetic disk, moves to a predetermined radial position corresponding to the position data of the magnetic disk which rotates at a predetermined constant speed; a reading step in which imbedded position data is read out for each sector of the magnetic disk is by the magnetic head; and a reading/writing step in which a predetermined signal is written in or read out from a data area of the sector by the magnetic head when the position data is one of equal to a predetermined value and within a predetermined range.
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