The effect of the abrasive,FA/O chelating agent,surfactant and oxidant on the material removal rate(MRR)selection ratio of Cu/Ru/SiO2 was investigated.The influence of H2O2 and KIO4on the chemical mechanical polishing(CMP)process of Cu/Ru was analyzed by electrochemical method and Zeta potential of abrasive particle surfaces.The surface micro morphology of the polished Cu disk was observed by the atomic force microscopy(AFM).The results show that in the slurry without the oxidant,Cu and SiO2 polishing rates...