Dishing and nitride erosion of STI-CMP for different integration schemes |
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Authors: | Lim Lim Hwee S. Balakumar S. Mahadevan Zhou Mei Sheng Alex See M. Rahman A. Senthilkumar |
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Affiliation: | (1) Chartered Semiconductor Manufacturing Ltd., 738406 Singapore;(2) National University of Singapore, 119260 Singapore |
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Abstract: | In this paper, we investigate the effects of integration schemes on the STI-CMP performance of two polishers, as well as the influence of consumables and process parameters. The experiment was based on both the blanket-oxide wafers and the patterned wafers processed using 0.18 μm technology. The polishing capability was evaluated, based on the results collected using metrology tools such as Opti-probe, Tencor profiler; atomic force microscope (AFM), and x-ray-scanning electron microscopy (X-SEM) analysis. |
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Keywords: | STI-CMP integration schemes 0.18 μ m technology polishing |
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