Polysilicon-oxide-nitride-oxide-silicon-type flash memory using an Y2O3 film as a charge trapping layer

被引:3
作者
Pan, Tung-Ming [1 ]
Yeh, Wen-Wei [1 ]
机构
[1] Chang Gung Univ, Dept Elect Engn, Tao Yuan 333, Taiwan
关键词
D O I
10.1149/1.2919136
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A polysilicon-oxide-nitride-oxide-silicon-type flash memory using a high-k yttrium oxide (Y(2)O(3)) film as the trapping storage layer is developed. This high-k Y(2)O(3) charge trapping layer memory exhibited large threshold voltage shifting (memory window of 3 V), excellent data retention (charge loss of 5 and 10% measured time up to 10(4) s and recorded at room temperature and 125 degrees C, respectively), and superior endurance characteristics (program/erase cycles up to 10(5)) because of the higher probability for trapping the charge carrier. This film appears to be a very promising charge trapping layer for high-density, two-bit nonvolatile flash memory application. (C) 2008 The Electrochemical Society.
引用
收藏
页码:G37 / G39
页数:3
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