Back to results
US 8,526,245 B2Granted
Method and apparatus for managing open blocks in nonvolatile memory device
AssigneeSamsung Electronics Co., Ltd.
InventorsSang Yong Yoon, Dong Hyuk Chae, Bo Geun Kim
Life of this patent
Estimating the term…
Abstract
A memory system comprises a multi-bit memory device and a memory controller that controls the multi-bit memory device. The memory system determines whether a requested program operation is a random program operation or a sequential program operation. Where the requested program operation is a random program operation, the memory controller controls the multi-bit memory device to perform operations according to a fine program close policy or a fine program open policy.
Claims7
A method of operating a memory system comprising a multi-bit memory device, comprising:
- determining whether a requested program operation in connection with a first memory block is a random program operation;
- where the requested program operation is determined to be a random program operation, determining whether a selected memory block of a current program operation is an open block, and upon determining that the selected memory block is an open block, performing a fine program operation on coarse-programmed memory cells in the selected memory block before performing the random program operation in the first memory block;
- determining whether the requested program operation is an open block program operation;
- and
- where the requested program operation is determined to be an open block program operation, storing program data of the open block program operation in the selected memory block.
2 more elements
Dependencies are inferred from the claim text.