17834320. MEMORY DEVICE, A MEMORY SYSTEM HAVING THE SAME AND AN OPERATING METHOD THEREOF simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)
MEMORY DEVICE, A MEMORY SYSTEM HAVING THE SAME AND AN OPERATING METHOD THEREOF
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MEMORY DEVICE, A MEMORY SYSTEM HAVING THE SAME AND AN OPERATING METHOD THEREOF - A simplified explanation of the abstract
This abstract first appeared for US patent application 17834320 titled 'MEMORY DEVICE, A MEMORY SYSTEM HAVING THE SAME AND AN OPERATING METHOD THEREOF
Simplified Explanation
The abstract describes an operating method for a memory device. Here is a simplified explanation of the abstract:
- The method involves receiving a row address for the memory device.
- It determines whether the operating mode is a byte mode.
- If the operating mode is the byte mode, it counts up an access count value for the row address while ignoring a page bit.
- It then selects a target row hammer address among target row addresses using the access count values.
- A victim row address corresponding to the target row hammer address is calculated.
- Finally, a target refresh operation is performed on the victim row address.
Potential applications of this technology:
- This operating method can be applied in various memory devices such as computer RAM, solid-state drives (SSDs), and mobile devices.
- It can improve the efficiency and performance of memory operations in these devices.
Problems solved by this technology:
- Row hammer is a phenomenon where repeated accesses to a specific row in a memory device can cause bit flips in adjacent rows. This can lead to data corruption and security vulnerabilities.
- The described method helps mitigate the effects of row hammer by identifying target row addresses and performing targeted refresh operations, reducing the likelihood of bit flips.
Benefits of this technology:
- By counting up access count values and selecting target row hammer addresses, the method can effectively prevent or reduce the occurrence of row hammer-induced bit flips.
- This can enhance the reliability and data integrity of memory devices, improving overall system performance and security.
Original Abstract Submitted
An operating method of a memory device, the method including, receiving a row address, determining whether an operating mode is a byte mode, counting up an access count value for the row address while ignoring a page bit, when the operating mode is the byte mode, selecting a target row hammer address among target row addresses using access count values for the target row hammer address, calculating a victim row address corresponding to the target row hammer address, and performing a target refresh operation on the victim row address.
