Effect of Additives on Copper Electroplating Profile for TSV Filling
3D integration with TSVs is emerging as a promising technology for the next generation integrated circuits.TSV filling is a critical process in TSV fabrication and has direct effect on electrical performance of TSVs.In this paper,we mainly focus on effect of additives used in methanesulfonic based solution on copper electroplating filling.Numerical simulation based on an absorption-diffusion model has been carried out with electrochemical data.TSV filling experiment results with different additive concentrations are presented and void-free TSV filling has been achieved.
Yunhui ZHU Yuan BIAN Xin SUN Shenglin MA Qinghu CUI Xiao ZHONG Jing CHEN Min MIAO Yufeng JIN
National Key Laboratory of Science and Technology on Micro/Nano Fabrication,Peking University,Beijin Peking University Shenzhen Graduate school,Shenzhen,518055,China National Key Laboratory of Science and Technology on Micro/Nano Fabrication,Peking University,Beijin
国际会议
桂林
英文
56-59
2012-08-13(万方平台首次上网日期,不代表论文的发表时间)