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Proceedings Paper

Excimer laser treatment of electrical contact materials
Author(s): Kenneth G. Snowdon; Stephen Rolt
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Paper Abstract

Many organic materials are used in the electrical and electronics industries. However, even thin layers of organics on electrical contacts can lead to high resistance problems. The use of an excimer laser in removing organic contamination has been studied. Excimer laser radiation successfully removed rosin flux and polyimide materials from deliberately contaminated test coupons. Laser cleaning of unknown organics and an inorganic silver sulphide tarnish film from relay contacts was also accomplished. A study of endpoint detection methods for laser cleaning will also be discussed. Excimer laser flash melting of unpiated and thin gold plated connector contacts to reduce porosity will also be reported.

Paper Details

Date Published: 1 August 1990
PDF: 13 pages
Proc. SPIE 1279, Laser-Assisted Processing II, (1 August 1990); doi: 10.1117/12.20637
Show Author Affiliations
Kenneth G. Snowdon, STC Technology Ltd. (United Kingdom)
Stephen Rolt, STC Technology Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 1279:
Laser-Assisted Processing II
Lucien Diego Laude, Editor(s)

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