Role of abrasives in high selectivity ST
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R. Manivannan; S. Ramanathan
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Article
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2008
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Elsevier Science
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English
⚖ 179 KB
In this study chemical mechanical planarization slurries for shallow trench isolation exhibiting high oxide to nitride polish rate selectivity were investigated and it was found that the abrasives play a major role in suppressing the nitride polish rate and enhancing selectivity. When glutamic acid