A robust alternative for the DRAM capacitor of 50nm generation

被引:0
|
作者
Lee, KH [1 ]
Chung, SJ [1 ]
Kim, JY [1 ]
Kim, KC [1 ]
Lim, JS [1 ]
Cho, K [1 ]
Lee, J [1 ]
Chung, JH [1 ]
Lim, HJ [1 ]
Choi, K [1 ]
Han, S [1 ]
Jang, S [1 ]
Nam, BY [1 ]
Yoo, CY [1 ]
Kim, ST [1 ]
Chung, UI [1 ]
Moon, JT [1 ]
Ryu, BI [1 ]
机构
[1] Samsung Elect Co Ltd, Semicond R&D Div, Proc Dev Team, Yongin 449711, Gyeonggi Do, South Korea
关键词
D O I
暂无
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
As a new alternative for the DRAM capacitor of 50nm generation, Ru/Insulator/TiN (RIT) capacitor with the lowest Toxeq of 0.85nm has been successfully developed for the first time. TiO2/HfO2 and Ta2O5/HfO2 double-layers were used as dielectric materials. After full integration into 512Mbits DRAM device, the RIT capacitor showed good electrical properties and thermal stability up to 550degreesC and its time-dependent-dielectric-breakdown behavior sufficiently satisfied 10-year lifetime within a DRAM operation voltage.
引用
收藏
页码:841 / 844
页数:4
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