Computer ARchitecture &
Embedded Systems Laboratory

> Research Area > Flash Memory System

Flash Memory System

1. Research goal

- Provides the maximum capacity of MLC flash memory


- Provides the performance and endurance close to SLC flash memory



2. Our approaches

- Exploit a flexible cell programming of MLC flash memory


- Write data into SLC region and migrates them to MLC region using idle time


- Adjust the amount of data to be written to SLC region considering performance and lifetime




3. Published papers

Sungjin Lee, Keonsoo Ha, Kangwon Zhang, Jihong Kim, and Junghwan Kim, "FlexFS: A Flexible Flash File System for MLC NAND Flash Memory," International Conference on USENIX Annual Technical Conference (USENIX '09), San Diego, USA, June 14-19, 2009