System and method for producing artwork for printed circuit boar

Details System and method for producing artwork for printed circuit boar System and method for producing artwork for printed circuit boar

1981-03-19

1983-12-20

Cardillo, Jr., Raymond F.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

354 4, 358296, 428901, G01D 942, H04N 122, G03B 4100

Patent

active

044220839

ABSTRACT:
Laser imaging system for imaging printed circuit artwork on an output medium such as a photosensitive film, a glass plate or a printed circuit board. The laser beam scans the output medium and is modulated in accordance with the image to be formed. A correction signal is applied to the modulator to maintain substantially uniform exposure across the output medium notwithstanding variations in the velocity of the beam.

REFERENCES:
patent: 3316348 (1967-04-01), Hufnagel et al.
patent: 3389403 (1968-06-01), Cottingham et al.
patent: 3720785 (1973-03-01), Van Auken
patent: 3787887 (1974-01-01), Burton
patent: 3800084 (1974-03-01), Unenko
patent: 3927411 (1975-12-01), Lee et al.
patent: 3999010 (1976-12-01), Dosaker et al.
patent: 4002829 (1977-01-01), Hutchison
patent: 4028732 (1977-06-01), Salter et al.

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