Method for inducing fluorescence in parylene films by an active

Details Method for inducing fluorescence in parylene films by an active Method for inducing fluorescence in parylene films by an active

1990-09-28

1992-08-18

Beck, Shrive

Coating processes

Measuring, testing, or indicating

427 38, 430139, 2504841, B05D 306

Patent

active

051398133

ABSTRACT:
A method is provided for inducing fluorescence in films or coatings comprised in whole or in part of parylene which involves exposure of the parylene to an active plasma. A method is also provided which utilizes plasma induced fluorescence as a means for quality control inspection of films and coatings of parylene such as those contained on electronic components or for identification and/or authentication of various articles.

REFERENCES:
patent: 4123308 (1978-10-01), Nowlin et al.
patent: 4590381 (1986-05-01), Mendelson
patent: 4694171 (1987-09-01), Hosoi et al.
Takai et al., "Luminescence from Poly(p-xylylene)", Makromol Chem., Rapid Commun. 1, (1980) pp. 17-21.
Takai et al., "Photoluminescence Study in Polymers" Jpn. J. Appl. Phys. vol. 17, No. 4, Apr. 1978 pp. 651-658.
Kochi et al, "Photoluminescence of Solid Aromatic Polymers-I poly(p-xylylene)" European Polym. J. vol. 24, No. 10 (1988) pp. 917-921.
Nowlin et al., Journal of Applied Science, vol. 25, 1619-1632 (1980).

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