Method of manufacturing printed boards

Details Method of manufacturing printed boards Method of manufacturing printed boards

1982-12-09

1986-07-08

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Stripping process or element

430260, 430320, 430322, 430325, 430326, 430327, 430329, 430331, 156236, 156238, G03C 1112

Patent

active

045992975

ABSTRACT:
At least one strip of dry film assembly is supplied continuously to a plurality of mutually spaced apart boards which are also being fed continuously. The film assembly consists of a photosensitive layer sandwiched between a protective film and a base. The base is removed from the assembly when the assembly is supplied to the boards, so that each of the boards may be bonded to the photosensitive layer. The boards and the film assembly are fed intermittently, and the photosensitive layer is exposed to light to print a predetermined pattern on each board. The protective film is removed from the film assembly, and each printed board is subjected to developing treatment.

REFERENCES:
patent: 2570627 (1951-10-01), Albin
patent: 3469982 (1969-09-01), Celeste
patent: 3547730 (1970-12-01), Cohen et al.
patent: 3629036 (1971-12-01), Isaacson
patent: 4075051 (1978-02-01), Brzozowski
patent: 4214936 (1980-07-01), Del Bianco
patent: 4233395 (1980-11-01), Klupfel et al.

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