Method and apparatus for surface reallocation for improved manuf

Details Method and apparatus for surface reallocation for improved manuf Method and apparatus for surface reallocation for improved manuf

1991-06-26

1993-06-01

McElheny, Jr., Donald E.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

G11B 2736

Patent

active

052166554

ABSTRACT:
In the manufacture of a high capacity data storage device having multiple surfaces for recording information, the yield of the manufacturing process is improved by providing the storage device with a spare surface. If a recording surface is found to be totally defective, or, substantially worse than the other surfaces, as determined by the manufacturing testing procedures, that surface is, by means of a remapping table, logically retired and the information intended for the defective surface is stored on the logically reallocated spare surface.

REFERENCES:
patent: 4420807 (1983-12-01), Nolta et al.
patent: 4434487 (1984-02-01), Rubinson et al.
patent: 4498146 (1985-02-01), Martinez
patent: 4903198 (1990-02-01), Iwasaki
patent: 4935825 (1990-06-01), Worrell et al.
patent: 5146571 (1992-09-01), Logan

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