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AUTOMATIC REFRESH FOR IMPROVING DATA RETENTION AND ENDURANCE CHARACTERISTICS OF AN EMBEDDED NON-VOLATILE MEMORY IN A STANDARD CMOS LOGIC PROCESS
AUTOMATIC REFRESH FOR IMPROVING DATA RETENTION AND ENDURANCE CHARACTERISTICS OF AN EMBEDDED NON-VOLATILE MEMORY IN A STANDARD CMOS LOGIC PROCESS
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机译:自动刷新以提高标准CMOS逻辑过程中嵌入式非易失性存储器的数据保留和持久性
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摘要
A method for selectively refreshing data in a nonvolatile memory array based on failure type detected by an error correction code. If the page is determined to be error-free, no refresh operation takes place. Otherwise, if single-error words on a page contain erased and programmed bit errors, then a refresh operation, consisting of an erase and program, takes place. The erase operation is skipped if single-error words on a page solely contain a program failure.
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