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US 7,710,777 B1Granted
Semi-volatile NAND flash memory
AssigneeMarvell International Ltd.
InventorsMark D. Montierth, Randall D. Briggs, Douglas G. Keithley
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Abstract
Semi-volatile NAND flash memory systems, apparatuses, and methods for use are described herein. According to various embodiments, a semi-volatile NAND flash memory may be partitioned into various retention regions. Other embodiments may be described and claimed.
Claims15
A semi-volatile NAND flash system, comprising:
- a NAND flash memory cell array partitioned into a plurality of retention regions including a first retention region and a second retention region;
- and
- a memory controller configured to selectively store data into one of the plurality of retention regions based on an expected storage duration associated with the data;
- wherein the first retention region is configured to store data having an expected storage duration that is equal to or less than a first threshold;
- and
- wherein the second retention region is configured to store data having an expected storage duration that is equal to or less than a second threshold, the first threshold being greater than the second threshold.
3 more elements
A method comprising:
- partitioning a NAND flash memory cell into a plurality of retention regions, including a first retention region and a second retention region;
- selectively storing data into one of the plurality of retention regions based on an expected storage duration associated with the data, wherein said selectively storing data further comprises:
- storing data, having an expected storage duration that is equal to or less than a first threshold, in the first retention region;
- and
- storing data, having an expected storage duration that is equal to or less than a second threshold, in the second retention region, wherein the first threshold is greater than the second threshold.
2 more elements
Dependencies are inferred from the claim text.