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Parallel nanoimaging and nanolithography using a heated microcantilever array

机译:使用加热的微悬臂阵列进行并行纳米成像和纳米光刻

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We report parallel topographic imaging and nanolithography using heated microcantilever arrays integrated into a commercial atomic force microscope (AFM). The array has five AFM cantilevers, each of which has an internal resistive heater. The temperatures of the cantilever heaters can be monitored and controlled independently and in parallel. We perform parallel AFM imaging of a region of size 550 μm × 90 μm, where the cantilever heat flow signals provide a measure of the nanometer-scale substrate topography. At a cantilever scan speed of 1134 μm s-1, we acquire a 3.1 million-pixel image in 62 s with noise-limited vertical resolution of 0.6 nm and pixels of size 351 nm × 45 nm. At a scan speed of 4030 μm s~(-1) we acquire a 26.4 million pixel image in 124 s with vertical resolution of 5.4 nm and pixels of size 44 nm × 43 nm. Finally, we demonstrate parallel nanolithography with the cantilever array, including iterations of measure-write-measure nanofabrication, with each cantilever operating independently.
机译:我们报告了使用集成到商业原子力显微镜(AFM)中的加热的微悬臂梁阵列进行的并行地形成像和纳米光刻。该阵列具有五个AFM悬臂,每个悬臂具有一个内部电阻加热器。悬臂式加热器的温度可以独立且并行地进行监控。我们对面积为550μm×90μm的区域执行并行AFM成像,其中悬臂热流信号提供了纳米级基板形貌的度量。在1134μms-1的悬臂扫描速度下,我们在62 s内获得了310万像素的图像,垂直方向的噪声限制为0.6 nm,像素大小为351 nm×45 nm。在4030μms〜(-1)的扫描速度下,我们在124 s内获得了2640万像素图像,垂直分辨率为5.4 nm,像素尺寸为44 nm×43 nm。最后,我们展示了悬臂阵列的并行纳米光刻技术,包括测量-写入-测量纳米加工的迭代,每个悬臂独立运行。

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