Title
Data Deletion Method For Security Improvement Of Flash Memories
Abstract
For Flash memories, data remanence can cause differences in threshold voltage among the erased cells. By detecting such differences, already-erased data can be recovered. To decrease the differences, a secure deletion method of data is investigated in this paper. The effects of erase-erase (EE) operation and erase-program (EP) operation on threshold voltage are studied in theory. Based on the floating-gate device model, the optimal overwriting sequence, EPEPE, is obtained by simulation. This sequence can reduce the difference to 0.1 mV in threshold voltage among the erased Flash cells, which equals to that caused by one floating-gate electron.
Year
DOI
Venue
2018
10.1587/elex.15.20180152
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
Flash memory cells, data remanence, floating gate, threshold voltage, secure deletion method, overwriting sequence
Computer science,Electronic engineering,Threshold voltage,Data remanence
Journal
Volume
Issue
ISSN
15
8
1349-2543
Citations 
PageRank 
References 
0
0.34
1
Authors
5
Name
Order
Citations
PageRank
Ruishan Xin101.69
Ye, M.2245.83
Jia Wang37917.75
kai hu42110.26
Yiqiang Zhao55613.82