18079433. OPERATION METHOD OF NONVOLATILE MEMORY DEVICE simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)
Contents
OPERATION METHOD OF NONVOLATILE MEMORY DEVICE
Organization Name
Inventor(s)
DOO-YEUN Jung of Suwon-si (KR)
OPERATION METHOD OF NONVOLATILE MEMORY DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18079433 titled 'OPERATION METHOD OF NONVOLATILE MEMORY DEVICE
Simplified Explanation
The patent application describes an operation method for a nonvolatile memory device with memory blocks and wordlines. Here are the key points:
- The method involves performing an erase on a memory block.
- A block verification is then performed on the memory block using a 0-th erase verification voltage.
- If the result of the block verification indicates a pass, a delta verification is performed on the memory block using a first erase verification voltage different from the 0-th erase verification voltage.
- Information about the erase result of the memory block is outputted based on the result of the block verification or the delta verification.
- The delta verification includes generating delta counting values for wordline groups using the first erase verification voltage.
- A delta value is generated based on the delta counting values.
- The delta value is then compared to a first reference value.
Potential applications of this technology:
- Nonvolatile memory devices, such as flash memory, can benefit from this operation method.
- The method can be used in various electronic devices that utilize nonvolatile memory, such as smartphones, tablets, and solid-state drives.
Problems solved by this technology:
- The method provides a reliable way to verify the erase operation on memory blocks.
- It ensures that the memory blocks are properly erased and can be written with new data.
- The delta verification helps to detect any errors or inconsistencies in the erase operation.
Benefits of this technology:
- Improved reliability and accuracy in verifying the erase operation of memory blocks.
- Enhanced data integrity and reduced risk of data corruption.
- Efficient use of memory blocks by ensuring proper erasure before writing new data.
Original Abstract Submitted
An operation method of a nonvolatile memory device which includes a memory block having wordlines includes performing an erase on the memory block, performing a block verification on the memory block by using a 0-th erase verification voltage, performing a delta verification on the memory block by using a first erase verification voltage different from the 0-th erase verification voltage when a result of the block verification indicates a pass, and outputting information about an erase result of the memory block based on the result of the block verification or a result of the delta verification. The delta verification includes generating delta counting values respectively corresponding to wordline groups by using the first erase verification voltage, generating a delta value based on the delta counting values, and comparing the delta value and a first reference value.
