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Micropore x-ray optics using anisotropic wet etching of (110) silicon wafers

机译:使用(110)硅片的各向异性湿法刻蚀的微孔X射线光学器件

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摘要

To develop x-ray mirrors for micropore optics, smooth silicon (111) sidewalls obtained after anisotropic wet etching of a silicon (110) wafer were studied. A sample device with 19 (mu)m wide (111) sidewalls was fabricated using a 220 (mu)m thick silicon (110) wafer and potassium hydroxide solution. For what we believe to be the first time, x-ray reflection on the (111) sidewalls was detected in the angular response measurement. Compared to ray-tracing simulations, the surface roughness of the sidewalls was estimated to be 3-5 nm, which is consistent with the atomic force microscope and the surface profiler measurements.
机译:为了开发用于微孔光学器件的X射线反射镜,研究了在对硅(110)晶圆进行各向异性湿法刻蚀之后获得的光滑硅(111)侧壁。使用220μm厚的硅(110)晶圆和氢氧化钾溶液制造了具有19μm宽(111)侧壁的样品设备。我们相信这是第一次,在角响应测量中检测到(111)侧壁上的X射线反射。与光线追踪模拟相比,侧壁的表面粗糙度估计为3-5 nm,这与原子力显微镜和表面轮廓仪的测量结果一致。

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