| 热丝法沉积金刚石膜工艺参数优化的微观机理与预测 |
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| 引用本文： | 戚学贵 陈则韶 徐宏 王学生 候峰 谭晓勇. 热丝法沉积金刚石膜工艺参数优化的微观机理与预测[J]. 真空科学与技术学报, 2005, 25(3): 159-163 |
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| 作者姓名： | 戚学贵 陈则韶 徐宏 王学生 候峰 谭晓勇 |
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| 作者单位： | [1]华东理工大学机械工程学院化机所,上海200237 [2]中国科学技术大学工程科学学院,合肥230027 |
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| 基金项目： | 国家自然科学基金（No.59976038）. |
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| 摘 要： | 弄清化学气相沉积金刚石膜的机理对优化工艺参数具有指导意义。在前期工作中，作者辨析了氢原子、甲基和乙炔在金刚石膜沉积中的作用。本文建立了两个微观指标，即甲基浓度和氢原子与乙炔浓度的比值，分别对应生长金刚石和刻蚀非金刚石碳。通过对G-H和G-H-O反应气氛的模拟，讨论了这两个指标与灯丝温度、气源组成和气压的关系，并构建了含氧气氛生长金刚石的G-H-O三元相图。对热丝法沉积金刚石膜的工艺参数的优化选择进行了机理分析与预测。为工业化生产金刚石膜提供了参考。
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| 关 键 词： | 金刚石膜 热丝化学气相沉积 参数优化 相图 |
| 文章编号： | 1672-7126（2005）03-01-0159-05 |
| 收稿时间： | 2004-09-27 |
| 修稿时间： | 2004-09-27 |
Mechanisms and OptimiTation of Diamond Film Growth by Hot-Filament Chemical Vapor Deposition |
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| Qi Xuegui, Ghen Zeshao, Xu Hong, Wang Xuesheng, Hou Feng and Tan Xiaoyong. Mechanisms and OptimiTation of Diamond Film Growth by Hot-Filament Chemical Vapor Deposition[J]. JOurnal of Vacuum Science and Technology, 2005, 25(3): 159-163 |
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| Authors: | Qi Xuegui Ghen Zeshao Xu Hong Wang Xuesheng Hou Feng Tan Xiaoyong |
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| Affiliation: | 1. School of Mechanical Engineering ,East China University of Science and Technology, Shanghai,200237, China; 2. School of Engineering Science, University of Science and Technology of China, Hefei ,230027, China |
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| Abstract: | Growth mechanisms of diamond film with hot filament chemical vapor deposition(CVD) were studied by analyzing the roles of atomic hydrogen,methyl and acetylene.Two micro criteria were established:one is the methyl concentration,and the other is the concentration ratio of atomic hydrogen and acetylene,corresponding to the growth of diamond film and the etching of non-diamond carbon,respectively.By simulating the gas-phase chemistry in C-H and C-H-O environment,we obtained the gas-phase equilibrium composition and the relationship between the two criteria mentioned above and various growth parameters,including the filament temperature,and the composition and partial pressures of the gas mixture.The C-H-O phase diagram for diamond film growth has been successfully constructed and the growth conditions were also discussed and optimized for industrial applications. |
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| Keywords: | Diamond film Hot-fiament chemical vapor deposition Parameter optimization Phase diagram |
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