Abstract:For 28 nm and beyond, severe specifications in terms of dimensions and materials integrity still drive further cleaning process improvements. As the global “HF budget” drastically decreases with interconnections dimensions, HF solution dilution and process time both decreased stepwise. However, very short recipes with process time shorter than 15s start to suffer from lack of robustness, in particular for the monitoring of inline parameters such as flow-rates and temperature. In this paper, we highlighted that… Show more
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