Effect of Dummy Via on the SIV Performance of Narrow-Wide Copper Interconnection
Based on the stress induced void theory,three kinds of narrow-wide two-layer copper interconnection structure with dummy via in M1 were designed and put under different high temperature conditions for test.Under the action of high temperature,influence of dummy vias in lower layer metal ( M1 ) on the failure phenomenon of the interconnect structure was analyzed.The result shows,adding dummy via in M1 can effectively improve the SIV performance of copper interconnection.Based on this,a more accurate equation was put forward to describe the behavior of the vacancy in the structure with dummy via spreading from the diffusion source to the accumulation.
LIN Xiao-ling LI Meng XIAO Qing-zhong Zhang Xiao-wen
Science and Technology on Reliability Physics and Application of Electrical Component Laboratory,Chi Machinery Engineering and Automation Program,Changchun University,Changchun,130022,China
国际会议
桂林
英文
336-339
2012-08-13(万方平台首次上网日期,不代表论文的发表时间)