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US 11,455,120 B2Granted
Memory system and operating method thereof
AssigneeSK hynix Inc.
InventorsDuck-Hoi Koo, Yong-Tae Kim
Life of this patent
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AssigneeSK hynix Inc.
InventorsDuck-Hoi Koo, Yong-Tae Kim
Estimating the term…
A memory system may include: a memory device comprising a plurality of channels, a plurality of dies coupled to the respective channels, and a plurality of super blocks; and a controller suitable for controlling the memory device, wherein the controller includes: a detector suitable for searching for a first available reserved block in a first die, when a bad block has occurred in the first die which is coupled to a first channel and belongs to a first super block group, and searching for a second available reserved block in a second die which is coupled to the first channel and belongs to a second super block group when the first available reserved block is not present in the first die; and an assignor suitable for replacing the bad block with the second available reserved block when the second available reserved block is present.
A memory system, comprising:
A method for operating a memory system, the memory system comprising a plurality of super block groups, each super block group including plural memory blocks dispersed in a plurality of dies, and a controller coupled to the plural dies through a plurality of channels, the method comprising:
A controller for managing memory blocks, the controller coupled to a plurality of dies through a plurality of channels, wherein the controller is configured to organize a plurality of super block groups, each super block group including plural memory blocks dispersed in the plurality of dies, determine which memory block in a first die among the plurality of dies is a bad block, determine a reserved memory block which is replaced with the bad block, and replace the reserved memory block with the bad block in the first die, wherein the controller is further configured to search for the reserved memory block in a second die among the plurality of dies, wherein the first die and the second die are coupled to the controller via different channels and belong to different super block groups.
Dependencies are inferred from the claim text.