NAND Bad Columns analysis and removal

NAND Bad Columns analysis and removal These vertical stripes are Bad Columns. Number of Bad columns within one page can be any, on practise 1…80 defects/columns (2…160 bytes per page). Typical size of bad columns is 2 bytes, rarely 1 byte, sometimes they are grouped together as 4,6 and more bytes. A distrubution of bad…

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