Control of circuit board quality

Details Control of circuit board quality Control of circuit board quality

1988-01-15

1988-09-27

Marcus, Michael S.

Chemistry: analytical and immunological testing

Process or composition for determination of physical state...

Surface area, porosity, imperfection, or alteration

250362, 2504591, 428418, 428901, G01N 2164, B32B 1508, B32B 2738

Patent

active

047741880

ABSTRACT:
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.

REFERENCES:
patent: 3617744 (1971-11-01), Irish
patent: 4016133 (1977-04-01), Hyosu et al.
patent: 4152723 (1979-05-01), McMahon et al.
patent: 4400618 (1983-08-01), Bupp et al.

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