TDDB and voltage-ramp reliability of SiC-base dielectric diffusion barriers in Cu/low-k interconnects

被引:8
|
作者
Jow, K [1 ]
Alers, GB [1 ]
Sanganeria, M [1 ]
Harm, G [1 ]
Fu, H [1 ]
Tang, X [1 ]
Kooi, G [1 ]
Ray, GW [1 ]
Danek, M [1 ]
机构
[1] Novellus Syst, San Jose, CA 95134 USA
关键词
D O I
10.1109/RELPHY.2003.1197824
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
Failure modes for inter-level dielectric layers under accelerated test conditions are evaluated for copper / low-k interconnects. The dominate failure mode at high voltage stress conditions appears to be mechanical cracking at the dielectric barrier / low-k interface. A simple model for the electrostatic force between interdigitated lines is able to account for the failure with certain assumptions about interfacial adhesion strength of the dielectric diffusion barrier.
引用
收藏
页码:598 / 599
页数:2
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