A 5-V-ONLY OPERATION 0.6-MU-M FLASH EEPROM WITH ROW DECODER SCHEME IN TRIPLE-WELL STRUCTURE

被引:108
作者
UMEZAWA, A [1 ]
ATSUMI, S [1 ]
KURIYAMA, M [1 ]
BANBA, H [1 ]
IMAMIYA, K [1 ]
NARUKE, K [1 ]
YAMADA, S [1 ]
OBI, E [1 ]
OSHIKIRI, M [1 ]
SUZUKI, T [1 ]
TANAKA, S [1 ]
机构
[1] TOSHIBA MICROELECTR CORP,KAWASAKI 210,JAPAN
关键词
D O I
10.1109/4.165334
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An experimental 4-Mb flash EEPROM has been developed based on 0.6-mum triple-well CMOS technology in order to establish circuit technology for high-density flash memories. The possibility of achieving a cell size of 2.0 x 1.8 mum2 has been found by employing a negative-gate-biased source erase scheme and a self-aligned source (SAS) process technology. A newly developed row decoder with a triple-well structure has been realized in accordance with its small cell size. The source voltage during the erase operation was reduced by applying a negative voltage to the word line, which results in a 5-V-only operation. The chip size of the 4-Mb flash EEPROM is 8.11 x 6.95 mm2, and the estimated chip size of a 16-Mb flash EEPROM is 98.4 mm2 by employing the minimal cell size (2.0 x 1.8 mum2).
引用
收藏
页码:1540 / 1546
页数:7
相关论文
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