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2025, 06, v.44 56-62
脉冲磁控溅射低温沉积Au薄膜的微观结构和内应力研究
基金项目(Foundation): 国家自然科学基金(51802297)
邮箱(Email):
DOI: 10.19289/j.1004-227x.2025.06.009
摘要:

[目的]研究直流脉冲磁控溅射工艺参数对Au薄膜微观结构及内应力的影响规律,为制备高性能Au薄膜提供理论依据。[方法]采用直流脉冲磁控溅射法在单晶硅片上沉积Au薄膜。研究了气体压强和薄膜厚度对Au薄膜的结构及内应力的影响。通过X射线衍射仪(XRD)、原子力显微镜(AFM)和探针式表面轮廓分析仪对薄膜进行表征。[结果]磁控溅射所得Au薄膜呈(111)晶面择优取向。随气体压强增大,薄膜的生长速率先增大后减小,晶粒尺寸减小,表面粗糙度增大,内应力先减小后增大。随薄膜厚度增大,晶粒尺寸和表面粗糙度增大,应力状态由张应力转变为压应力,并逐渐减小。[结论]本研究可为优化Au薄膜的沉积工艺提供理论指导。

Abstract:

[Objective] The effect of magnetron sputtering parameters on the microstructure and internal stress of Au thin films were studied to provide theoretical guidance for preparing high-performance Au films. [Method] Au thin films were deposited on single-crystal silicon substrates via pulsed magnetron sputtering. The effects of gas pressure and film thickness on the microstructure and internal stress of Au film were studied. The films were characterized by X-ray diffraction(XRD), atomic force microscopy(AFM), and probe surface profilometry. [Result] The sputtered Au films exhibited preferential(111) crystal orientation. With the increasing of gas pressure, the deposition rate was initially increased and then decreased, accompanied by reduced grain size, increased surface roughness, and internal stress showing an initial decrease followed by an increase. As film thickness increased, both grain size and surface roughness increased, while the stress state transitioned from tensile to compressive stress with gradually decreasing magnitude. [Conclusion] This research provides theoretical guidance for optimizing the deposition process of Au thin films.

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基本信息:

DOI:10.19289/j.1004-227x.2025.06.009

中图分类号:TB383.2

引用信息:

[1]纪建超,颜悦,哈恩华.脉冲磁控溅射低温沉积Au薄膜的微观结构和内应力研究[J].电镀与涂饰,2025,44(06):56-62.DOI:10.19289/j.1004-227x.2025.06.009.

基金信息:

国家自然科学基金(51802297)

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