NOVEL N2O-OXYNITRIDATION TECHNOLOGY FOR FORMING HIGHLY RELIABLE EEPROM TUNNEL OXIDE-FILMS

被引:96
作者
FUKUDA, H
YASUDA, M
IWABUCHI, T
OHNO, S
机构
[1] Semiconductor Technology Laboratory, Oki Electric Industry Company Ltd., Hachioji, Tokyo 193, 550-5, Higashiasakawa
关键词
D O I
10.1109/55.119206
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
Ultrathin (congruent-to 6 nm) oxynitrided SiO2 (SiOxNy) films have been formed on Si(100) by rapid thermal processing (RTP) in an N2O ambient. We have demonstrated that by this technology the generation of electron traps in bulk SiO2 and the low-field leakage during Fowler-Nordheim electron injection can be greatly reduced. This behavior of SiOxNy film can be explained by the idea that the trap sites are reduced by forming strong Si-N bonds in bulk SiO2. This N2O oxynitridation is viewed as a hopeful technology for forming ultrathin EEPROM tunnel oxide films.
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页码:587 / 589
页数:3
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