COMPARATIVE STUDY OF IONIC CONTAMINATION IN CLEANROOM WIPERS USING CAPILLARY ION ANALYSIS (CIA)
作者:
O. Atterbury,
H.R. Bhattacharjee,
期刊:
Journal of Liquid Chromatography & Related Technologies
(Taylor Available online 2000)
卷期:
Volume 23,
issue 4
页码: 617-630
ISSN:1082-6076
年代: 2000
DOI:10.1081/JLC-100101478
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Several experimental approaches have been considered to address the problem of detecting and quantifying the ionic contamination in semiconductor cleanroom consumables such as wipers. A relatively new analytical technique called capillary ion analysis (CIA) appeared to us as an outstanding and convenient tool for the separation and quantification of both cationic and anionic species present in cleanroom wipers. Multiple wipers were used for extraction in high-purity deionized water to derive better sampling averages, as well as to enhance the levels of ions in solution. The resulting extract solution was preconcentrated by evaporation to further increase the signals from the released ionic species.
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