Stop on Nitride Slurry Development
2020
The formulation approaches on ceria-based SoN (Stop on Nitride) slurry depend on the surface charge of ceria particles. For the ceria particles with positive charges, the slurry formulation will be different from the negative charged ceria. In this paper, we discuss the pros and cons of different approaches in formulating SoN slurry. Finally, we present the CMP performance results from the SoN slurry that is formulated with positive charged ceria.
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