Electromigration failure mechanism studies on copper interconnects

被引:42
|
作者
Fischer, AH [1 ]
von Glasow, A [1 ]
Penka, S [1 ]
Ungar, F [1 ]
机构
[1] Infineon Technol AG, Reliabil Methodol, D-81739 Munich, Germany
关键词
D O I
10.1109/IITC.2002.1014913
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
Electromigration (EM) studies revealed a strong correlation between observed failure scenario and local microstructural properties at the via-to-line-transition, in particular that of the liner. "Early" failure modes were found to have not only smaller failure times but also a lower current density exponent. The influence of specific processes on the occurrence of certain failure modes will be discussed.
引用
收藏
页码:139 / 141
页数:3
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