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首页> 外文期刊>Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures >Gas-assisted focused ion beam etching characteristics of niobium
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Gas-assisted focused ion beam etching characteristics of niobium

机译:铌的气体辅助聚焦离子束刻蚀特性

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摘要

The gas-assisted focused ion beam etching characteristics of niobium have been investigated systematically in I_2 and XeF_2 gas atmosphere, respectively. The effects of the etching parameters, such as: ion beam current, dwell time, overlap percentage and gas species, on the niobium etching rate and on the gas-assisted etching enhancement have been studied. It was found that the overlap percentage had little effect on the etching characteristics of niobium. It also showed that the I_2 radicals are more reactant with niobium than XeF_2 radicals, and to obtain maximum improvement from the gas-assisted etching process one needs to select a smaller ion beam current with a shorter beam dwell time.
机译:分别在I_2和XeF_2气体气氛中系统研究了铌的气体辅助聚焦离子束刻蚀特性。研究了离子束电流,停留时间,重合百分比和气体种类等腐蚀参数对铌腐蚀速率和气体辅助腐蚀增强的影响。发现重叠百分比对铌的蚀刻特性影响很小。研究还表明,I_2自由基比XeF_2自由基与铌的反应更多,并且要从气体辅助蚀刻工艺中获得最大的改善,需要选择更短的离子束电流和更短的束流停留时间。

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