Page buffer program command and methods to reprogram pages without re-inputting data to a memory device
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United States of America Patent
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Mar 12, 2013
Grant Date -
Apr 29, 2010
app pub date -
Mar 31, 2009
filing date -
Oct 25, 2008
priority date (Note) -
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Abstract
A technique for efficiently handling write operation failures in a memory device which communicates with an external host device allows a page of data to be re-written to a memory array from a page buffer. The host provides user data, a first write address and a write command to the memory device. If the write attempt fails, the host provides a re-write command with a new address, without re-sending the user data to the memory device. Additional data can be received at a data cache of the memory device while a re-write from the page buffer is in progress. The re-written data may be obtained in a copy operation in which the data is read out to the host, modified and written back to the memory device. Additional data can be input to the memory device during the copy operation. Page buffer data can also be modified in place.
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