Methods and apparatus for selectively removing a metallic film f

Details Methods and apparatus for selectively removing a metallic film f Methods and apparatus for selectively removing a metallic film f

1976-12-27

1978-03-28

Truhe, J. V.

Electric heating

Metal heating

By arc

B23K 900

Patent

active

040816540

ABSTRACT:
A metallized substrate is flexed to conform to the surface of a segment of a right circular cylinder. The metallized substrate is arcuately rotated and a planar apertured mask is simultaneously moved linearly in spaced tangential relationship to the flexed substrate. A laser beam is directed through the apertured mask to traverse a line formed by the intersection of a plane parallel to the planar apertured mask and tangent to the flexed metallized substrate. As the metallized substrate and the apertured mask are moved, the laser beam is continuously reciprocated along the line to raster scan the metallized substrate through the apertured mask to remove metal therefrom in a desired pattern.

REFERENCES:
patent: 3156810 (1964-11-01), Samuelson
patent: 3742182 (1973-06-01), Saunders
patent: 3924533 (1975-12-01), Gaynor
IBM Bulletin, vol. 3, #2, July 1970, p. 362.

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