A Novel Modeling Method of NAND Device
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Flash memory has gained tremendous popularity in recent years. A variant of flash, referred to as NAND flash, is widely used in consumer electronics products, such as cell-phones and music players while NAND flash based Solid-State Disks (SSDs) are increasingly displacing hard disk drives as the primary storage device in laptops, desktops, and even datacenters. Computer architects have recently begun exploring the use NAND flash, from SSD organizations to disk caches and even new flash-based server architectures. In order to study this design space, architects require simulation tools that can provide detailed insights into the behavior of flash memory. This article presents electrical and mathematical models of a NAND device and propose a novel method to resolve the system. Results show that, thanks to the modeling approaches used, the NAND devices are optimized.
KeywordsNAND device Flash memory DAE modeling Partitioning differential
The authors wish to acknowledge all the members of the scientific committee.
- 1.Masuoka, F., Momodomi, M., Iwata, Y., Shirota, R.: New ultra-high-density EPROM and Flash EEPROM with NAND structure cell. In: Proceedings of the 1987 International Electron Devices Meeting, New York, NY, USA, pp. 552–555, December 1987Google Scholar
- 3.Brewer, J.E., Gill, M.: Nonvolatile Memory Technologies with Emphasis on Flash. IEEE Press, Piscataway (2008)Google Scholar
- 5.Dirik, C., Jacob, B.: The performance of PC solid-state disks (SSDs) as a function of bandwidth, concurrency, device architecture, and system organization. In: The International Symposium on Computer Architecture (ISCA), pp. 279–289 (2009)Google Scholar
- 6.Kgil, T., Roberts, D., Mudge, T.: Improving NAND flash based disk caches. In: The International Symposium on Computer Architecture (ISCA), pp. 327–338 (2008)Google Scholar
- 7.Caulfield, A.M., Grupp, L.M., Swanson, S.: Gordon: using flash memory to build fast, power-efficient clusters for data-intensive applications. In: The International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS), pp. 217–228 (2009)Google Scholar
- 8.Kim, J.K., et al.: A PRAM and NAND flash hybrid architecture for high-performance embedded storage subsystems. In: The 8th ACM international conference on Embedded software (EMSOFT 2008), New York, NY, USA, pp. 31–40 (2008)Google Scholar
- 11.Zhou, J.K.: Differential transformation and its application for electrical circuits. Huarjung University Press, Wuhan (1986)Google Scholar
- 13.Vidyabhushan, M.: Modeling the physical characteristics of NAND Flash Memory (May 2010)Google Scholar
- 15.Tischendorf, C.: Solution of index-2 differential algebraic equations and its application in circuit simulation, Berlin (1996)Google Scholar
- 16.Hairer, E., Lubich, C., Roche, M.: The Numerical Solution of Differential-Algebraic Systems by Runge-Kutta Methods, Lecture Notes in Mathematics, vol. 1409. Springer, New York (1989)Google Scholar
- 17.Hairer, E., Wanner, G.: Solving Ordinary Differential Equations 11: Stiff and Differential Algebraic Problems, 2nd edn. Springer, New York (1996)Google Scholar