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Study on the Reactive Ion Etching of Si3N4
Author(s): 
Pages: 864-866,870
Year: Issue:  5
Journal: Chinese Journal of Electron Devices

Keyword:  反应离子刻蚀氮化硅刻蚀气体优化;
Abstract: 采用CHF3、CHF3+CF4和CHF3+O2三种不同气体体系作氮化硅的反应离子刻蚀(RIE)实验,研究了不同刻蚀气体对刻蚀速率、均匀性和对光刻胶的选择比三个刻蚀参数的影响.通过优化气体配比,比较刻蚀结果,最终获得了刻蚀速率为119 nm/min,均匀性为0.6%,对光刻胶选择比为3.62的刻蚀氮化硅的优化工艺.
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