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研制了一种用于大面积光学薄膜表面无损表征的新型原子力显微镜(AFM)。利用开放式样品台及探头系统可检测大尺寸、大重量的样品。样品最大尺寸可达600 mm×1000 mm。利用X、Y方向上的步进电机可实现探头在大尺寸样品表面任意位置的定位。另外还设计了优化的光点跟踪光路以实现大范围扫描成像,在扫描范围和反馈范围增大的同时,保持了较高的精度。利用步进电机和扫描器配合扫描,可得到序列图像,通过序列图像的拼接可获得更大范围的扫描图像。本文中测试了三种大面积薄膜样品,实验结果表明,单幅扫描图像最大范围达20 μm×20 μm,同时保持高的横向及纵向分辨率。 相似文献
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在近场光学显微镜的研制过程中,制备合适的探针是一个重要的环节。在腐蚀法制得的光纤尖端附近镀铝膜后,采用扫描电子显微镜中的样品充电效应可检测出探针透光点的分布情况,亦可直接用电镜观察膜表面的均匀性,这对提前剔除不良探针有重要作用。结果表明该方法有效可行。 相似文献
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扫描近场光学显微镜有源光纤探针的研制 总被引:4,自引:0,他引:4
研制了用于扫描近场光学显微镜的新型光纤探针,采用熔拉法和腐蚀法相结合制作出掺Er^3+光纤探针,实验测试了这种光纤探针的放大的自发辐射。探针可提高系统的灵敏度,降低图像的相干噪声。 相似文献
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本文介绍了所研制的二维微定位柔性系统和一维精密转动系统,进行了相关技术的研究并给出了设计参数,使SPM能够满足高精度下的大尺寸平面样品以及球形被测样品的全范围检测,扩大了扫描探针显微镜(SPM)在超精密工程中的应用范围。 相似文献
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在动态原子力与近场光学扫描显微镜中,探针与样品的间距关系到分辨率以及扫描速度这两个最重要参数的性能。在对几种主要的动态原子力/扫描近场光学组合显微镜的探针/样品间距控制模式分析的基础上,认为提高探针Q值是提高扫描显微镜分辨率的有效方法。但是,对采用检测控制探针振幅模式,期望在提高分辨率的同时加快扫描成像速度是不可实现的,因而限制了其发展的空间。而在检测控制探针频率模式下,提高探针Q值,可有效提高扫描探针显微镜的分辨率,且不会制约扫描成像速度的提高。该结论为将来的纳米操作和纳米超高密度光存储的实用化提供了可能,对大连理工大学近场光学与纳米技术研究所研制的原子力与光子扫描隧道组合显微镜(AF/PSTM)的改进和产业化具有积极意义。 相似文献
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提出和发展了一种激光光路跟踪型原子力显微镜(AFM)技术及系统。研制了新型AFM探头,设 计了与XY扫描器联动的跟踪透镜及扫描跟踪光路,实现激光束对微探针(微悬 臂)的XY扫描的实时跟踪;研 究设计了独特的反馈跟踪光路,既可实现微悬臂偏转量的精确检测,又可巧妙地消除因微探 针的Z向反馈运动 造成的干扰噪声。利用研发的AFM系统对多孔氧化铝纳米孔等具有不同横向与 纵向结构尺寸的微纳米样品进行了扫 描成像,得到了理想的实验结果,表明研发的系统具有优良的XY扫描跟踪特性 和Z向反馈跟踪性能。本文研发的 AFM系统原理新颖、方法巧妙、扫描成像性能好和分辨率高,克服了常规样品 扫描型AFM的局限性,能够以 微探针扫描的方式实现不同大小、不同重量的样品的AFM扫描成像,可望在微纳米技术领 域获得广泛应用。 相似文献
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Accelerated decomposition of organic additives during open circuit condition was observed only when both copper wire and oxygen are present in the copper sulfate solution. The data suggest that the accelerating mercapto species could form a complex with cuprous ions from copper anode in the plating solution. The copper complexes formed then undergo oxidation reaction and lose its original electrochemical activity by introducing byproducts. Adsorption behavior of various chemical components in the plating solution on the copper anode surface was found to have a significant influence on the sulfur-containing brightening agent degradation rate. The degradation mechanisms attributed to the interactions among different chemical components are also addressed and discussed. 相似文献
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An atomic force microscope with a stationary sample and a scanning cantilever using an optical lever method is demonstrated for the first time. The cantilever tip is translated to measure surface profiles while a simple lens attached to the cantilever holder guides a focused beam from a fixed collimated diode laser. The imaging capability is demonstrated up to 100*100 mu m/sup 2/.<> 相似文献
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The extendibility of the physical vapor deposition (PVD), seed-layer deposition process for future devices needs to be enhanced
with electrochemical techniques. Developing analytical techniques for the plating bath is a particular challenge because bath
ingredients are often proprietary and difficult to ascertain. The feasibility of using an ion chromatography for an electrochemical
copper, seed-layer enhancement (SLE) process metrology is studied. It is shown that the ion-chromatography method can be used
to precisely determine the composition dynamics in a copper SLE plating bath. The bath concentration dynamics are found to
be significant in influencing the electroplated Cu film properties, i.e., the resistivity and surface roughness. An excellent
correlation exists between the ion chromatograms and the electroplated Cu film properties, suggesting that the ion-chromatography
method is a powerful method. 相似文献
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We have used a scanning probe microscope,equipped with a custom-made probe,consisting of a conical-shaped diamond tip and rectangular tungsten cantilever,to study mechanical properties of cross-linked polymeric surface coatings.A new method to measure the mar resistance,a very desirable characteristic of surface coatings,has been developed,by using the custom-made tip to mar the surface under well-controlled conditions,and using the conventional tip to image the marred surface and measure the dimension of the mars.Based on the dimension of the mar,different responses of coatings to marring stress,elastic recovery,plastic deformation,and brittle fracture,can be identified quantitatively with great accuracy also.In addition,the dynamic process,such as viscoelastic creep,stress-hardening,micro-crack developing,and surface fatigue,has been studied with the SPM. 相似文献
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电镀铜是PCB加工过程中的一个关键工艺流程,涉及到孔和板面金属化的性能保证,影响因素众多。文章从系统控制角度出发,针对如何控制PCB电镀铜的各影响因素以保证电镀铜质量做了相关讨论。 相似文献
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概述了平滑玻璃基板上的微细图形形成技术以及纳米多孔ZnO膜,弱酸性铅催化液和弱酸性乙酸铜镀铜液的开发,可以在玻璃/ZnO中间层化学镀铜层/乙酸铜镀铜层/硫酸铜镀铜层上采用减成法形成L/S=100μm/100μm的微细铜电路图形。 相似文献