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US 11,379,356 B2Granted
Memory system for handling program failure and an operating method thereof
AssigneeSK hynix Inc.
InventorJoo Young Lee
Life of this patent
Estimating the term…
Abstract
A memory system includes a memory device and a controller. The memory device includes a memory block configured to store target data. The controller is configured to maintain the target data in a write buffer until a program operation to the memory block succeeds, update a write cache tag regarding the target data when the program operation fails and a read only mode is entered, and read the target data from the write buffer based on the write cache tag when a read command regarding the target data is received.
Claims20
A memory system, comprising:
- a memory device including a memory block configured to store target data;
- and
- a controller configured to maintain the target data in a write buffer until a program operation to the memory block succeeds, update a write cache tag associated with the target data when the program operation fails and a read only mode is entered, and read the target data from the write buffer based on the write cache tag when a read command regarding the target data is received.
A memory system, comprising:
- a memory device including a memory block and a page buffer;
- and
- a controller configured to move target data, stored in a write buffer, to the page buffer when performing a program operation to the memory block, load the target data stored in the page buffer to the write buffer when entering a read only mode after the program operation fails, and update a write cache tag regarding the target data loaded in the write buffer, wherein the controller is configured to obtain the target data from the write buffer based on the write cache tag when a read request is received for the target data.
A system, comprising:
- an input coupled to receive a command;
- and
- a controller configured to determine a memory block as a bad block and to update a write cache tag associated with target data in a write buffer when a first condition and a second condition are satisfied and read the target data from the write buffer based on the write cache tag in response to a read command regarding the target data, wherein:
- the first condition includes a determination that the memory block is a bad block based on failure of a program operation performed for the memory block, the program operation performed based on the command received through the input, and
- the second condition includes operation in a read only mode, and wherein the target data includes data corresponding to the program operation.
2 more elements
Dependencies are inferred from the claim text.