ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A number of contamination problems in the assembly of hybridmicrocircuits have been traced to the presence in the systems of degraded waxes. No information was available on the composition or stability of the natural waxes which are used extensively in the etching, shipping and storing of hybridmicrocircuit components. In this study, the composition and thermoxidative stability of three commercial waxes were defined. It was found that oxidation can occur at temperatures of 100° C; at high temperatures (150° C) the waxes are converted to insoluble chars. Vaseline, which is sometimes used as an additive, was found to have no effect on the stability of the waxes. Waxes made from poly(chlorotrifluoroethylene), available from Halocarbon Corporation, were found to be chemically stable and stable toward thermoxidation under the conditions used in the industry and are recommended as replacements for the natural waxes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00688416
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