By Topic

Adaptive Paired Page Prebackup Scheme for MLC NAND Flash Memory

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Jaeil Lee ; Samsung Electron., Hwasung, South Korea ; Dongkun Shin

Multilevel cell (MLC) NAND flash memory is more cost effective compared with single-level cell NAND flash memory as it can store two or more bits in a memory cell. However, in MLC flash memory, a programming operation can corrupt the paired page under abnormal termination. In order to solve the paired page problem, a backup scheme is generally used, which inevitably causes performance degradation and shortens the lifespan of flash memory. In this paper, we propose a more efficient paired page prebackup scheme for MLC flash memory. It adaptively exploits interleaving, copyback operations, and parity data to reduce the prebackup overhead. In experiments, the proposed scheme reduced the backup overhead by up to 78%.

Published in:

Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:33 ,  Issue: 7 )