磁场闭合度对等离子体空间分布状态及CrNx镀层沉积效率的影响Influence of closed-state of magnetic field on plasma distribution and deposition efficiency of CrNx coatings
蒋百灵,曹政,鲁媛媛,栾亚
摘要(Abstract):
采用Langmuir探针测定了不同磁场闭合状态下辉光放电环境中的电子温度(Te)、电子密度(ne)及离子密度(ni)空间分布状态,探讨了磁场闭合度对CrNx镀层沉积效率的影响机理。结果表明:三种磁场闭合状态下,电子温度都在靶面处最高,相邻靶间对称面最低,真空腔内部出现一个直径约240 mm的均匀中心区域;电子密度和离子密度在三种条件下均于真空腔中心处最高,边缘处最低,而随磁场闭合度的整体变化规律表现为这两个参数值在不闭合状态时小于半闭合和完全闭合状态时;完全闭合状态下镀层的厚度明显大于半闭合和不闭合状态下的镀层厚度。
关键词(KeyWords): 磁场闭合状态;电子温度;电子密度;离子密度;CrNx镀层
基金项目(Foundation): 国家高技术研究发展计划(863计划);; 闭合场非平衡磁控溅射离子镀镀膜装备研制和技术开发(2005AA33H010)
作者(Author): 蒋百灵,曹政,鲁媛媛,栾亚
DOI: 10.13289/j.issn.1009-6264.2011.01.018
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