论文部分内容阅读
In order to achieve a high-quality quartz glass substrate and to improve the performance of TiO2 antireflection coating,chemical mechanical polishing(CMP) method was used.During CMP process,some process parameters including pressure,polishing head speed,platen speed,slurry flow rate,polishing time,and slurry temperature were optimized to obtain lower quartz surface roughness.According to the experiment results,when pressure was 0.75 psi,polishing head speed was 65 rpm,platen speed was 60 rpm,slurry flow rate 150 m L/min,slurry temperature 20°C,and polishing time was 60 s,the material removal rate(MRR) was 56.8 nm/min and the surface roughness(Ra) was 1.93(the scanned area was 10×10μm2/.These results were suitable for the industrial production requirements.
In order to achieve a high-quality quartz glass substrate and to improve the performance of TiO2 antireflection coating, chemical mechanical polishing (CMP) method was used. Fluid CMP process, some process parameters including pressure, polishing head speed, platen speed, slurry flow rate, polishing time, and slurry temperature were optimized to obtain lower quartz surface roughness. According to the experiment results, when the pressure was 0.75 psi, the polishing head speed was 65 rpm, the platen speed was 60 rpm, the slurry flow rate 150 m L / min , the polishing time was 60 s, the material removal rate (MRR) was 56.8 nm / min and the surface roughness (Ra) was 1.93 (the scanned area was 10 × 10 μm 2 / .sequence were suitable for the industrial production requirements.