Paper Title:

Measurement of Outgassing in a Vacuum Environment

Periodical Key Engineering Materials (Volumes 277 - 279)
Main Theme On the Convergence of Bio-, Information-, Enrivonmental-, Energy-, Space- and Nano-Technolgies
Edited by Kwang Hwa Chung, Yong Hyeon Shin, Sue-Nie Park, Hyun Sook Cho, Soon-Ae Yoo, Byung Joo Min, Hyo-Suk Lim and Kyung Hwa Yoo
Pages 831-837
DOI 10.4028/www.scientific.net/KEM.277-279.831
Citation Yong Hyeon Shin et al., 2005, Key Engineering Materials, 277-279, 831
Online since January, 2005
Authors Yong Hyeon Shin, Seung Soo Hong, In Tae Lim, J.H. Kim, Dae Jin Seong, Kwang Hwa Chung, G.W. Moon, Sung Woo Choi
Keywords Outgassing, Satellite, Thermal Desorption, Vacuum
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Abstract

Outgassing, the evolution of gas from the material in a vacuum, is not only a source of micro contamination in a semiconductor or the flat display panel production process, but it also a limitation factor in the ultra clean process of nano-technology. The outgassing from the materials of satellites and spacecrafts must be controlled for increased safety and function because space is also a vacuum environment. Several methods are used in outgassing measurement in general, but there is no one method suitable for obtaining all outgassing data. The most suitable method for a particular application must be chosen by the experimenter or user. Three types of outgassing measurement systems were fabricated and characterized, ‘Throughput method,’ ‘Rate of Rise method’ and ‘Mass Loss Measurement method’. The outgassing rates of many kinds of materials were measured and characterized using these systems.