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arXiv 1608.07171cond-mat.mtrl-sci
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超光滑单晶金刚石表面的注入和剥离工艺

Ultra-smooth single crystal diamond surfaces resulting from implantation and lift-off processes

T. N. Tran Thi, B. Fernandez, D. Eon, E. Gheeraert, J. Hartwig, T. A. Lafford, A. Perrat-Mabilon, C. Peaucelle, P. Olivero, E. Bustarret

摘要:

本发明提供了一种获得光滑单晶金刚石表面的方法,其中通过注入产生牺牲缺陷层,并在选择性蚀刻之前通过退火使牺牲缺陷层石墨化。我们使用的是240 keV的O+,主要工艺变量是离子注量(范围从3 × 10^15 cm^-2到3 × 10^17 cm^-2)和最终蚀刻工艺(湿法蚀刻、H2等离子体和空气中退火)。通过原子力显微镜、光学轮廓仪和白光X射线形貌术对衬底进行了表征。的各种工艺参数对所产生的剥离效率和最终的表面粗糙度的影响进行了讨论。研究发现,2 × 10^17 cm^-2的O+能量密度可以产生超过数十μ m^2的亚纳米级粗糙度。

英文摘要:

A method for obtaining a smooth, single crystal diamond surface is presented, whereby a sacrificial defective layer is created by implantation and graphitized by annealing before being selectively etched. We have used O+ at 240 keV, the main process variables being the ion fluence (ranging from 3x10^15 cm^-2 to 3x10^17 cm^-2) and the final etching process (wet etch, H2 plasma and annealing in air). The substrates were characterized by atomic force microscopy, optical profilometry and white beam X-ray topography. The influence of the various process parameters on the resulting lift-off efficiency and final surface roughness is discussed. An O+ fluence of 2x10^17 cm^-2 was found to result in sub-nanometre roughness over tens of um^2.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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