C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/163, 356/2, 7
C09K 11/06 (2006.01) G01R 31/02 (2006.01) G01R 31/309 (2006.01) H05K 1/02 (2006.01) H05K 1/03 (2006.01)
Patent
CA 1335625
Circuit boards with advantageous properties are produced through the addition of a fluorescent dye. The presence of the dye allows an expeditious inspection of the metallic pattern on the circuit board by induced fluorescence. If the circuit board is two-sided, to maintain the effectiveness of the dye, a material such as a light scattering composition is added to the circuit board substrate.
588527
Blitchington Frank Henning
Chandross Edwin Arthur
Shepherd Lloyd
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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