Corrosion electrochemical mechanism of chemical mechanical polishing of copper in K3Fe(CN)6 solution

被引：0
|
作者：
He, HW
Hu, YH
Huang, KL
机构：
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
[2] Cent S Univ, Dept Mineral Engn, Changsha 410083, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2002年 / 12卷 / 01期
关键词：
copper; polishing rate; corrosion current density;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Polarization curves of copper were measured in NH3.H2O media containing K3Fe(CN)(6). Components of passive film were analyzed by XPS. Relation of polishing rate with corrosion current density was investigated during CMP. Copper can be passivated in the slurry and main component of passive film is Cu4Fe(CN)(6). Relation of polishing rate with corrosion current density is linear direct ratio and expressed as R = KJ(corr) during CMP. Coefficient K varies with different slurry systems but is constant under experimental conditions, which does not vary with NH3.H2O, K3Fe(CN)(6), gamma-Al2O3 concentrations, polishing pressures and rotative rate in a slurry system during CMP.
引用
收藏
页码：178 / 182
页数：5
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