Photoprinting process and apparatus for exposing paste consisten

Details Photoprinting process and apparatus for exposing paste consisten Photoprinting process and apparatus for exposing paste consisten

1987-06-02

1989-12-19

Dees, Jose G.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Forming nonplanar surface

430258, 430262, 430273, 430327, 430494, 430935, G03C 500

Patent

active

048882704

ABSTRACT:
Paste-consistency photopolymer is imaged onto printed wiring boards by coating the board overall and positioning the photographic film over the board in register and off-contact. A resilient blade is pressed against the phototool at one end of the board and drawn across the surface, thus forcing the photographic film into intimate contact with the photopolymer and purging all air therebetween. Mounted on the resilient blade aft of leading edge is a shuttered tubular lamp which hardens the photopolymer where the photographic film is clear, so that in a single pass the photographic film is sequentially mated and photopolymer exposed, to produce line widths unmatched by competing dry film systems and at speeds of 0.5 feet per second.

REFERENCES:
patent: 2760863 (1956-08-01), Plambeck, Jr.
patent: 3573975 (1971-04-01), Dhaka et al.
patent: 3597080 (1971-08-01), Gush et al.
patent: 3629036 (1971-12-01), Isaacson
patent: 3658620 (1972-04-01), Hall
patent: 3837887 (1974-09-01), Akamatsu et al.
patent: 4056423 (1977-11-01), Hughes
patent: 4087182 (1978-05-01), Aiba et al.
patent: 4298680 (1981-11-01), Bruno

Affiliated with

Also associated with

Rating

Photoprinting process and apparatus for exposing paste consisten does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photoprinting process and apparatus for exposing paste consisten, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoprinting process and apparatus for exposing paste consisten will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1902408