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	Long-term reproducibility of relative sensitivity factors obtained with CAMECA Wf
	Gui, D. ; Xing, Z. X. ; Huang, Y. H. ; Mo, Z. Q. ; Hua, Y. N. ; Zhao, S. P. ; Cha, L. Z.
	2010-10-12 ; 2010-10-12
关键词	Relative sensitivity factor Secondary ion mass spectrometry Reproducibility Long term Process control Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter
中文摘要	As the wafer size continues to increase and the feature size of the integrated circuits (IC) continues to shrink, process control of IC manufacturing becomes ever more important to reduce the cost of failures caused by the drift of processes or equipments. Characterization tools with high precision and reproducibility are required to capture any abnormality of the process. Although Secondary ion mass spectrometry (SIMS) has been widely used in dopant profile control, it was reported that magnetic sector SIMS, compared to quadrupole SIMS, has lower short-term repeatability and long-term reproducibility due to the high extraction field applied between sample and extraction lens. In this paper, we demonstrate that CAMECA Wf can deliver high long-term reproducibility because of its high-level automation and improved design of immersion lens. The relative standard deviation (R. S. D.) of the relative sensitivity factors (RSF) of three typical elements, i.e., boron (B), phosphorous (P) and nitrogen (N), over 3 years are 3.7%, 5.5% and 4.1%, respectively. The high reproducibility results have a practical implication that deviation can be estimated without testing the standards. (C) 2008 Elsevier B. V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82351]
专题	清华大学
推荐引用方式 GB/T 7714	Gui, D.,Xing, Z. X.,Huang, Y. H.,et al. Long-term reproducibility of relative sensitivity factors obtained with CAMECA Wf[J],2010, 2010.
APA	Gui, D..,Xing, Z. X..,Huang, Y. H..,Mo, Z. Q..,Hua, Y. N..,...&Cha, L. Z..(2010).Long-term reproducibility of relative sensitivity factors obtained with CAMECA Wf..
MLA	Gui, D.,et al."Long-term reproducibility of relative sensitivity factors obtained with CAMECA Wf".(2010).

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