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Reactive Ion Etching of Zinc Oxide Using Methane and Hydrogen

机译:甲烷和氢气对氧化锌的反应性离子蚀刻

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摘要

The reactive ion etching characteristics of ZnO have been investigated as functions of CH_4/H_2 gas composition, total gas pressure, and radio frequency (rf) plasma power. It was found that the etching rate of ZnO strongly depends on gas composition and gas pressure, suggesting that the etching of ZnO largely involves a process in which a volatile metalorganic zinc compound is formed. The etching rate of ZnO increased linearly with rf plasma power owing to its high bond-breaking efficiency, dc bias, and the degree of sputter desorption of etch products.
机译:研究了ZnO的反应离子刻蚀特性与CH_4 / H_2气体成分,总气体压力和射频(rf)等离子体功率的关系。发现ZnO的蚀刻速率强烈地取决于气体组成和气压,这表明ZnO的蚀刻主要涉及形成挥发性金属有机锌化合物的过程。 ZnO的刻蚀速率随射频等离子体功率的增加而线性增加,这是由于其高的键断裂效率,直流偏置和刻蚀产物的溅射脱附程度。

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