摘要(英) |
This experiment objective use porosities and bigger specific surface area advantages of bamboo carbon, use the characteristic of large specific surface and porosities of bamboo charcoal to adsorption abrasive and through in the wafer surface by pressure. When the bamboo carbon push on the workpiece surface, the abrasive will grinding, and because the bamboo carbon surface collapsed, resulting recycled and self-sharpening effectiveness, and continuous on the workpiece surface repeatedly machining, to raise the polishing effect.
This research mainly use the Taguchi Method experiment on silicon wafer surface polishing processing, and the parameters that affect quality were analyzed and discussed. Use Taguchi experimental planning to get a group better processing the parameter, and to do validation experiments.
The experiment proves that the best machining parameter combination is add Nano-Graphite, spindle speed 80 m/min, Turnplate speed 90 rpm, slurry concentration 5 wt%, time 50 mins, load 2000g. The slurry in this experiment, don′t use the Nano-Graphite surface roughness is 0.039μm. Add Nano-Graphite the surface roughness can be improved to 0.025μm of mirror effect. From the experimental result, we will find add Nano-Graphite can improve the silicon wafer surface roughness. |
參考文獻 |
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