Circuit forming method and apparatus therefor

Details Circuit forming method and apparatus therefor Circuit forming method and apparatus therefor

1995-09-07

1997-06-24

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

430126, G03G 1514, G03G 1322

Patent

active

056415974

ABSTRACT:
A circuit forming method having the step of forming, on an insulating board or a metallic foil layer, a resist pattern layer for patterning the metallic foil layer to be laminated to the board with a predetermined circuit by means of etching or lift-off, wherein the resist pattern layer forming step comprises the steps of forming an electric field distribution latent image corresponding to the circuit pattern by illuminating a predetermined area on a surface of a photoconductor charged beforehand with light for removing the charge of the surface of the photoconductor, forming a resist image corresponding to the circuit pattern by attaching a resist member charged reversely with respect to the latent image to the latent image, and transferring the resist image to the board or the metallic foil layer as the resist pattern layer.

REFERENCES:
patent: 4897326 (1990-01-01), Marengo
patent: 5416569 (1995-05-01), Goldberg

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