IP & T Group LLP
Memory controller to determine an optimal read voltage, operating method thereof and storage device including the same
A memory controller controlling a memory device including a plurality of memory cells includes a read operation controller performing a soft read operation on the plurality of memory cells by using a plurality of soft read voltages determined based on a default read voltage when a read operation for reading the plurality of memory cells by the default read voltage fails, and reading the plurality of memory cells by using an optimal read voltage determined according to a result of performing the soft read operation, and a read voltage setting circuit determining the optimal read voltage using voltage candidates being soft read voltages corresponding to at least two voltage intervals, among a plurality of voltage intervals determined according to the plurality of soft read voltages, the voltage candidates selected in ascending order of a number of memory cells having threshold voltages belonging to each of the plurality of voltage intervals.
SK hynix Inc.
G G G G G G G G G G G G G G G
G11C G06F G06F G06F G11C G11C G11C G11C G06F G11C G11C G11C G11C G06F G11C
inventional inventional inventional inventional inventional additional inventional inventional inventional additional inventional inventional inventional inventional additional
Yu Mi
Kim