Abrading – Precision device or process - or with condition responsive... – With indicating
Reexamination Certificate
2006-12-26
2006-12-26
Morgan, Eileen P. (Department: 3723)
Abrading
Precision device or process - or with condition responsive...
With indicating
C451S010000, C451S011000, C451S041000, C451S317000, C360S122000, C360S235400, C073S105000, C029S603160, C029S090010
Reexamination Certificate
active
07153193
ABSTRACT:
A system for selectively sensing and removing asperities from hard disk drive disk is disclosed. The system includes a test stand supporting the disk, the test stand having at least one suspension for flying over a surface of the disk. The system also includes a glide pad coupled to the at least one suspension for flying over the surface and locating asperities. A PZT sensor is coupled to the glide pad for sensing and mapping asperities on the surface of the disk. A burnish pad is coupled to the at least one suspension for wearing-away sensed and mapped asperities on the surface of the disk and a thermal fly height controller is coupled to the burnish pad for protruding the burnish pad when it is proximate to one of the mapped asperities for facilitating the wearing-away of the mapped asperity.
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Kurita Masayuki
Pit Remmelt
Saegusa Shozo
Shiramatsu Toshiya
Suk Mike
Hitachi GLobal Storage Netherlands B.V.
Morgan Eileen P.
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