Invention Grant
US09146821B2 Methods and systems for monitoring write operations of non-volatile memory 有权
用于监视非易失性存储器的写入操作的方法和系统

Methods and systems for monitoring write operations of non-volatile memory
Abstract:
Systems and methods are disclosed for monitoring the time it takes to perform a write operation, and based on the time it takes, a determination is made whether to retire a block that is a recipient of the write operation. The time duration of the write operation for a page or a combination of pages may indicate whether any block or blocks containing the page or combination of pages is experiencing a physical failure. That is, if the time duration of the write operation for a particular page exceeds time threshold, this may indicate that this page requires a larger number of program cycles than other pages. The longer programming cycle can be an indication of cell leakage or a failing block.
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