Method of exposure of photo-curing resin applied to printed circ

Details Method of exposure of photo-curing resin applied to printed circ Method of exposure of photo-curing resin applied to printed circ

1998-01-09

2000-12-26

Talbot, Brian K.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 97, 427508, 427512, 427553, 427558, B05D 512

Patent

active

061655449

ABSTRACT:
In exposing a photo-curing type resin to light, the light is irradiated to the photo-curing type resin while a base material to which the photo-curing type resin is applied is impregnated in a liquid. An apparatus for carrying out the exposure includes an exposure tank in which a liquid which does not dissolve the photo-curing type resin is reserved and a light source irradiating light to the photo-curing type resin impregnated in the liquid reserved in the tank. The exposure tank has two opposite side walls which have exposure windows closed by transparent plates respectively. The apparatus may include a plurality of light sources disposed so as to correspond to the respective exposing windows. A temperature of the liquid in which the base material is impregnated is controlled.

REFERENCES:
patent: 3714007 (1973-01-01), Borrel et al.
patent: 4016306 (1977-04-01), Miyagawa et al.
patent: 4544626 (1985-10-01), Sullivan

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