Effect of VLSI interconnect layout on electromigration performance

被引:19
作者
Atakov, EM [1 ]
Sriram, TS [1 ]
Dunnell, D [1 ]
Pizzanello, S [1 ]
机构
[1] Digital Equipment Corp, Hudson, MA 01749 USA
来源
1998 IEEE INTERNATIONAL RELIABILITY PHYSICS SYMPOSIUM PROCEEDINGS - 36TH ANNUAL | 1998年
关键词
D O I
10.1109/RELPHY.1998.670668
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
We characterized the reliability of multiple-via contacts, as well as the impact of the contact current direction on the failure statistics and short-length effect in Ti/Al(Cu)/Ti/TiN lines. A significant difference between the sheet resistances of the top and bottom shunting layers results in a bimodal failure time distribution for the downward electron flow direction. It also causes a significant difference in the short-length resistance saturation for the two current directions.
引用
收藏
页码:348 / 355
页数:8
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