Photoresist exposure method and apparatus therefor

Details Photoresist exposure method and apparatus therefor Photoresist exposure method and apparatus therefor

1991-05-16

1992-06-02

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Step and repeat

355 67, 355 84, G03B 2742

Patent

active

051191270

ABSTRACT:
A photoresist exposure apparatus in which a photoresist is coated by electrodeposition on the surface of a printed circuit board. The apparatus operates to expose the printed circuit board, which has been subjected to through-hole plating, to light through a film. The apparatus includes a device for horizontally disposing the printed circuit board and a light source positioned adjacent to the printed circuit board which can be rotated horizontally along the printed circuit board surface and which can be lifted and lowered with respect to the surface of the printed circuit board.

REFERENCES:
patent: 2919636 (1960-01-01), Kron
patent: 3385192 (1968-05-01), Qwarfort
patent: 4466737 (1984-08-01), Hastings
patent: 4910549 (1990-03-01), Sugita

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