Printed circuit board

Details Printed circuit board Printed circuit board

1989-06-14

1990-10-02

Niebling, John F.

Coating processes

Electrical product produced

Welding electrode

427 96, 522 96, 522 1, B05D 306

Patent

active

049606140

ABSTRACT:
A method for producing a circuit board involves printing a U.V. curable ink onto a substrate in a desired circuit pattern and curing the ink by exposing it to a pulsed U.V. source having an output in the region between 360 nm and 420 nm in a pulsing manner consisting of 5 to 8 one-half second exposure periods where each exposure period is followed by a non-exposure period of about 2 to 3 seconds.

REFERENCES:
patent: 4049844 (1977-09-01), Bolon et al.
patent: 4587205 (1986-05-01), Harrah et al.

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