Abstract:In this paper, an innovative study is presented to characterize the chemical-mechanical planarization (CMP) performance on hexagonal sapphire (0001) wafer surface by using colloidal silica (SiO2) abrasives based slurry with two different particle sizes, which indicates that the value of abrasive size is an important factor to determine the efficiency of CMP and the final planarization quality of wafer surface. The nano SiO2 abrasives used in this study could perfectly optimize the quality of surface roughness.… Show more
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