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电子特气高纯度制备技术及其对半导体器件性能的影响研究
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作者 郝建波 邱科镔 《中文科技期刊数据库(引文版)工程技术》 2024年第10期0120-0123,共4页
本文主要针对高纯度电子特气的制备工艺及对半导体器件性能产生的影响进行深入的研究。首先对电子特气高纯度制备工艺现状进行分析,指出现有工艺中存在的瓶颈问题,讨论新技术开发和应用进展情况。然后,详细描述电子特气纯度对于半导体... 本文主要针对高纯度电子特气的制备工艺及对半导体器件性能产生的影响进行深入的研究。首先对电子特气高纯度制备工艺现状进行分析,指出现有工艺中存在的瓶颈问题,讨论新技术开发和应用进展情况。然后,详细描述电子特气纯度对于半导体器件电学性能及可靠性所产生的具体作用,并结合案例研究进一步验证纯度提升对于器件性能所产生的明显提升作用。同时本论文还注意到高纯度电子特气制备技术所面临的一些挑战,主要是技术创新和成本平衡、环保和可持续发展等方面的要求,最后展望了该技术发展的趋势和前景。 展开更多
关键词 高纯度电子特气 半导体器件性能 制备技术优化
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Application of EBSD technique to ultrafine grained and nanostructured materials processed by severe plastic deformation:Sample preparation, parameters optimization and analysis 被引量:2
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作者 陈勇军 Jarle HJELEN Hans J.ROVEN 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第8期1801-1809,共9页
With the help of FESEM, high resolution electron backscatter diffraction can investigate the grains/subgrains as small as a few tens of nanometers with a good angular resolution (~0.5°). Fast development of EBS... With the help of FESEM, high resolution electron backscatter diffraction can investigate the grains/subgrains as small as a few tens of nanometers with a good angular resolution (~0.5°). Fast development of EBSD speed (up to 1100 patterns per second) contributes that the number of published articles related to EBSD has been increasing sharply year by year. This paper reviews the sample preparation, parameters optimization and analysis of EBSD technique, emphasizing on the investigation of ultrafine grained and nanostructured materials processed by severe plastic deformation (SPD). Detailed and practical parameters of the electropolishing, silica polishing and ion milling have been summarized. It is shown that ion milling is a real universal and promising polishing method for EBSD preparation of almost all materials. There exists a maximum value of indexed points as a function of step size. The optimum step size depends on the magnification and the board resolution/electronic step size. Grains/subgrains and texture, and grain boundary structure are readily obtained by EBSD. Strain and stored energy may be analyzed by EBSD. 展开更多
关键词 electron backscatter diffraction (EBSD) sample preparation parameters optimization step size severe plastic deformation (SPD)
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