Patent ID: 9691487
Date: 2017-06-27
CPC Classifications: G11C

Claim:
1. A table management method of a storage device, the storage device including at least one nonvolatile memory device and a memory controller configured to control the at least one nonvolatile memory device, each of the at least one nonvolatile memory device including a plurality of strings on a substrate and coupled between bitlines and a common source line, the plurality of strings being arranged perpendicular to the substrate, the table management method comprising: determining whether a table in one of the at least one nonvolatile memory device needs to be recovered, the table associated with a page among a plurality of pages in a block of the one of the at least one nonvolatile memory device; performing a block scan operation on the block if the table needs to be recovered; recovering the table using a time difference read from each of the plurality of pages of the block during the block scan operation, the time difference being a time elapsed until a current page among the plurality of pages is programmed from a program time of a previous page among the plurality of pages; and updating the recovered table to the at least one nonvolatile memory device.