共查询到17条相似文献,搜索用时 93 毫秒
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介绍了用RF溅射法制备InSb薄膜时,如何克服In的氧化问题的措施及防止InSb薄膜在热处理过程中继续氧化和挥发的方法。对实验结果进行了电镜和俄歇电子能谱测试分析。结果表明,只要控制好工艺条件,可以获得较好的效果。 相似文献
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介绍一种基于原子比为1:1的InSb靶制备原子比为1:1的InSb薄膜的方法,实验结果表明,该方法能较好地解决类似化合物溅射制膜过程中膜成分与靶偏离问题。 相似文献
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】在InSb薄膜制备过程中,用机械磨抛的方法,探索了In2O3氧化膜的去除和InSb敏感膜层的减薄、抛光等技术问题,从而提出一种新型磨抛工艺。文章介绍了该工艺的基本原理及不同工艺规范的磨抛结果。 相似文献
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InSb磁敏电阻脉冲涡流传感器的研究 总被引:2,自引:0,他引:2
脉冲涡流检测方法是涡流检测技术的一个新兴分支。因脉冲信号频带很宽,比单一频率正弦涡流衰减慢,其瞬态感应电压信号中就包含了有关缺陷的重要信息。本文分析了InSb磁敏电阻作为脉冲涡流检测元件的工作原理,设计了探头结构和调理电路,有效抑制了环境温度的干扰,并分析了应用InSb磁敏电阻的涡流探头检测金属裂纹特征的信息提取方法。实验结果表明,采用InSb磁敏电阻作为脉冲涡流检测传感器,具有较高的裂纹灵敏度,且可以较好地反映裂纹的深度。 相似文献
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离子束溅射技术以其在制备薄膜中的独特优点,成为获得高性能薄膜材料的重要手段。对于薄膜的制备,基片的温度是一个重要参数。主要从薄膜结构、应力和附着力三个方面总结了基片温度对离子束溅射工艺中薄膜生长的影响,并结合实际情况,介绍了在离子束刻蚀、溅射和磁控溅射镀膜工艺中的一些温度控制方法。在实际操作中,要根据沉淀薄膜的要求和离子束溅射的具体方法及设备,并结合基片本身的结构特点来考虑基片的控温措施及温度范围。 相似文献
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热处理条件对溅射法制得的InSb薄膜特性的影响 总被引:2,自引:0,他引:2
文中从理论和实验分析了热处理条件对溅射法制得的InSb薄膜特性的影响。热处理温度、时间和升降温速率都对薄膜特性有影响,通过实验得出了最佳的热处理温度、恒温时间和升降温速率。最后讨论了热处理过程中所采用的3种保护膜。 相似文献
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Label-free superresolution effect of nonlinear reverse saturation absorption (NRSA) thin films was investigated through difference method, where a subdiffraction-limit spot signal was constructed by intensity subtraction of two spots obtained under different laser intensities. By using annealed InSb films as the NRSA thin films, we experimentally obtained the subdiffraction-limit spot signal, and the optimal reduction ratio was approximately 52.5% of the original spot. Experimental results agreed well with theoretical simulations. The simulation results of a 9-point array sample showed the capability to achieve nonfluorescence superresolution imaging using the NRSA effect. 相似文献
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This paper reviews techniques available for obtaining images which can distinguish the two components in lattice-matched, hetero-epitaxial structures. From series of computer simulations it is shown that in the case of CdTe/(100)InSb the usual criteria for ‘good’ high resolution imaging (i.e. thin crystal, Scherzer focus) do not give images which differentiate the two materials. Conditions which do show different contrast features for both CdTe and InSb are found; under these conditions images are obtained which reveal the interfacial structure clearly, and show it to be essentially flat, and free of defects within the regions examined. Prospects for obtaining true ‘atomic’ images using a new 400 kV HREM are outlined. 相似文献
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《Measurement》2014
The thin epoxy film with micro-scale speckle pattern as a digital image correlation (DIC) deformation sensor has been fabricated or transferred on the surface of sample in the previous study. When the thickness of the film cannot be ignored, it may have an influence on the validity of measurement results. And thus, the influence of the thin epoxy film on mechanical properties of substrates should be investigated. In this study, the mechanical behavior of thin film itself and surface strain of composite structure of thin film and substrate were measured using micro digital image correlation (MDIC) method. And theoretical and simulative results were also analyzed. From the comparison analysis of theoretical, simulative and experimental results, it is concluded that when the ratios of Young’s modulus and thickness between the film and substrate are smaller than 13 and 0.5 respectively, the influence from the thin film can be ignored, and thin epoxy film as DIC sensor can be used to measure the deformation of substrate. 相似文献
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为增强基于Ag膜光纤表面等离子体共振(SPR)传感器的抗氧化能力,可将Au膜镀于Ag膜表面。利用TFCalc软件对不同厚度Ag膜和Au-Ag复合膜的光纤SPR传感特性进行理论仿真研究。仿真结果表明:光纤SPR吸收峰显著依赖于Ag膜厚度,当Ag膜厚度由40nm逐渐增加到80nm时,共振吸收峰的半峰全宽逐渐减小,且共振波长随Ag膜厚度的增大而减小,共振波长变化范围较小,仅为7nm左右;Au膜的引入对共振吸收峰反射率影响不大,不同厚度Au-Ag复合膜的SPR共振波长随Au膜厚度的增大而增大。 相似文献
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