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    • 55. 发明公开
    • Partial block erase architecture for flash memory
    • Flashi Speicher的PartielleBlocklöschungsarchitektur
    • EP2629300A2
    • 2013-08-21
    • EP13002537.2
    • 2008-03-04
    • Mosaid Technologies Incorporated
    • Jin-Ki, Kim
    • G11C16/16G11C16/02G11C16/08G11C7/20G11C8/14G11C16/34G11C16/04
    • G11C16/14G11C16/0483G11C16/3418G11C16/3427G11C16/344G11C16/349
    • A method and system for increasing the lifespan of a flash memory device by selectively erasing sub-blocks of a memory block. Each physical memory block of the flash memory device is dividable into at least two logical sub-block, where each of the at least two logical sub-blocks is erasable. Therefore, only the data of the logical sub-block is erased and reprogrammed while unmodified data in the other logical sub-block avoids unnecessary program/erase cycles. The logical sub-blocks to be erased are dynamically configurable in size and location within the block. A wear leveling algorithm is used for distributing data throughout the physical and logical sub-blocks of the memory array to maximize the lifespan of the physical block during programming and data modification operations.
    • 一种用于通过选择性地擦除存储器块的子块来增加闪存器件的寿命的方法和系统。 闪速存储器件的每个物理存储器块可被分割成至少两个逻辑子块,其中至少两个逻辑子块中的每一个都是可擦除的。 因此,只有逻辑子块的数据被擦除并重新编程,而另一个逻辑子块中的未修改数据避免了不必要的编程/擦除周期。 要擦除的逻辑子块可在块内的大小和位置上动态配置。 磨损均衡算法用于在存储器阵列的整个物理和逻辑子块中分布数据,以在编程和数据修改操作期间最大化物理块的寿命。