Dynamic magnetic information storage or retrieval – Fluid bearing head support – Disk record
Reexamination Certificate
2005-05-03
2005-05-03
Klimowicz, William (Department: 2652)
Dynamic magnetic information storage or retrieval
Fluid bearing head support
Disk record
C029S603090, C264S400000, C264S482000, C264S040100
Reexamination Certificate
active
06888701
ABSTRACT:
Embodiments include a method for adjusting the twist of an air bearing surface of at least one slider to substantially match a target values for twist, the at least one slider having a back surface opposite the air bearing surface, the back surface including two sets of diagonally opposite corner regions, with each set including one corner region adjacent to a leading edge of the slider and one corner region adjacent to a trailing edge of the slider. The method includes forming a first mechanical scribe on the back surface extending through at least a portion of the corner regions adjacent to the leading edge of the slider and forming a second mechanical scribe on the back surface extending through at least a portion of the corner regions adjacent to the trailing edge of the slider. The method also includes measuring the twist of the slider, and forming a first group of laser scribes on the back surface in one of the two sets of diagonally opposite corner regions, wherein each of the laser scribes intersects with one of the first and second mechanical scribes. The method also includes measuring the twist of the slider and comparing the values to the target value for twist, and forming additional laser scribes if the target value for twist is not reached.
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Chang Ping-Wei
Poon Chie Ching
Tam Andrew C.
Hitachi Global Storage Technologies - Netherlands B.V.
Klimowicz William
Konrad Raynes & Victor LLP
Raynes Alan S.
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